Book reviews

Book Reveiwed in this article:
Controlling Dietary Fiber in Food Products . Leon Prosky & Jonathan Devries. Chapman and Hall.
Chemical Senses Volume 4 Appetite and Nutrition . Edited M.I. Friedman, M.G. Tordoff and M.R. Kare.
Data Sourcebook for Food Scientists and Technologists . Edited by Y.H. Hui.
Modern Food Microbiology . Edited by James M. Jay. Chapman & Hall.
Pearson's Composition and Analysis of Foods . Edited by R.S. Kirk and R. Sawyer.
Biotechnology and Nutrition . Edited by D.D. Bills and Shain-dow Kung.
The Chemistry and Technology of Pectin . Edited by R.H. Walter.
Free Radicals and Food Additives . Edited by O.I. Aruoma and B. Halliwell.
The Chemistry and Technology of Cereals as Food and Feed . second edition. Edited by S.A. Matz.     

Genetic parameters for first milk production and composition traits for Holsteins using multivariate restricted maximum likelihood

Heritabilities and genetic and phenotypic correlations among yields of milk, fat, protein, and percentages of fat and protein were estimated from 40,984 first lactation records of daughters of 488 young and 75 proven Holstein sires using multivariate REML and a sire model accounting for relationships and sire groups. Proven sires were treated as fixed effects. Heritabilities for yields of milk, fat, protein, and percentages of fat and protein were .29, .31, .25, .65, and .61, respectively. Genetic correlations of milk with yields of fat, protein, and percentages of fat and protein and correlations of fat yield with fat percentage were .45, .79, -.49, -.54 and .56, respectively. Genetic correlations among yields and among percentage of fat and protein were the same (.62). Genetic and phenotypic correlations of protein percentage with fat and protein yields and correlations of fat percentages with protein yield were small (-.13 to .11). Phenotypic correlations were .73 to .90 among yields of milk, fat, and protein; -.31 for milk and fat percentage; -.39 for milk and protein percentage; and .38 for fat yield and fat percentage. Estimates were consistent with an earlier study utilizing data from the same population and also with other reports.     

LITERATURE ABSTRACTS

GENERAL PRINCIPLES: Wall Slip Corrections for Couette and Parallel Disk Viscometers . A. Yoshimura and R. K. Prud'Homme GENERAL PRINCIPLES: Foam Rheology: III. Measurement of Shear Flow Properties . S. A. Khan, C. A. Schnepper and R. C Armstrong GENERAL PRINCIPLES: Stability of Bovine Muscle Connective Tissues . V. M. Bernal and D. W. Stanley GENERAL PRINCIPLES: Application of Reaction Kinetics to the Denaturation of Whey Proteins in Heated Milk . F. Dannenberg and H. G. Kessler GENERAL PRINCIPLES: Rheological Properties of Ultrafiltered Skim Milk . M. Hallström and P. Dejmek GENERAL PRINCIPLES: Mechanical Studies of Sol-Gel Transition: Universal Behavior of Elastic Modulus . Masayuki Tokita and Kunio Hikichi GENERAL PRINCIPLES: Rheological and Thermal Properties of Carrageenan Gels. Effect of Sulfate Content . Mineo Watase and Katsuyoshi Nishinari GENERAL PRINCIPLES: Dymanic Viscoelasticity and Anomalous Thermal Behaviour of Concentrated Agarose Gels . Mineo Watase and Katsuyoshi Nishinari GENERAL PRINCIPLES: Foaming Properties of Protein Solutions: Comparison of Large-Scale Whipping and Conductimetric Methods . David J. Wright and John W. Hemmant FACTORS AFFECTING TEXTURE: Responses of CA-stored Bramley's Seedling and Cox's Orange Pippin Apples to Modified Atmosphere Retail Packaging . J. D. Geeson, S. M. Smith, Helen P. Everson, Pia M. Genge and K. M. Browne FACTORS AFFECTING TEXTURE: Restructured Pork with Texture Variation . N. G. Marriott, S. K. Phelps, C. A. Costello and P. P. Graham FACTORS AFFECTING TEXTURE: Texture Changes in White Bread: Effects of Processing and Storage . U. Stollman and B. Lundgren FACTORS AFFECTING TEXTURE: Chemical Composition and Rheological Behaviour of Strawberry Jams Relation with Fruit Content . E. Costell, E. Carbonell and L. Duran FACTORS AFFECTING TEXTURE: Influence of Sugar and Cyanide Concentrations and Paste Viscosities of Cassava Flour on Fried Cassava Chip Quality . A. M. Almazan FACTORS AFFECTING TEXTURE: Influence of Hot and Cold Boning on the Palatability, Textural and Economic Traits of Restructured Beef Steaks . D. L. Seman, W. G. Moody, J. D. Fox and N. Gay FACTORS AFFECTING TEXTURE: Influence of Soy Protein and NaCl on the Rheological Properties of Beef, Pork or Chicken Muscle Homogenates . M. A. Bianchi, A. M. R. Rilosof and G. B. Bartholomai FACTORS AFFECTING TEXTURE: Relationship of Water Content to Textural Characteristics, Water Activity and Thermal Conductivity of Some Commercial Sausages . G. R. Ziegler, S. S. H. Rizvi and J. C. Acton FACTORS AFFECTING TEXTURE: Texture of Cooked Mantle of Squid Ilex argentinus as Influenced by Specimen Characteristics and Treatments . I. Kolodziejska, Z. E. Sikorski and M. Sadowska FACTORS AFFECTING TEXTURE: Relationship Between Pectic Composition and the Softening of the Texture of Japanese Radish Roots During Cooking . M. Fuchigami FACTORS AFFECTING TEXTURE: Intrinsic Viscosity of Tomato Serum as Affected by Methods of Determination and Methods of Processing Concentrates . T. Tanglertpaibul and M. A. Rao FACTORS AFFECTING TEXTURE: Rheological Properties and Conformation of Tomato Paste Pectins, Citrus and Apple Pectins . T. D. Chou and J. L Kokini FACTORS AFFECTING TEXTURE: Effect of Aging and Mustard Flour on Rheological Properties of Model O/W Emulsion . R. Fischbach and J. L. Kokini FACTORS AFFECTING TEXTURE: Cold Shock in Fish: Its Characteristics in Bighead . R. W. H. Parry, M. V. Alcasid and E. B. Panggat FACTORS AFFECTING TEXTURE: Continuous Emulsification and Gelation of Dairy Ingredients by HTST Extrusion Cooking: Production of Processed Cheeses . F. Zuber, D. Megard and J. C. Cheftel FACTORS AFFECTING TEXTURE: The Effect of Fermentation Temperature, Flour Type, and Starter on the Properties of Sour Wheat Bread . H. Salovaara and T. Valjakka FACTORS AFFECTING TEXTURE: Rheological Properties of Ultrafiltered Skim Milk. I. Effects of pH, Temperature and Heat Treatment . M. Hallstrom and P. Dejmek. FACTORS AFFECTING TEXTURE: Improvement of Quality of Whipping Cream by Adding Carrageenan and Milk Constituents. II. Influence of Additives on the Physical Properties of Whipped Cream . D. Precht, K.-H. Peters, and J. Petersen FACTORS AFFECTING TEXTURE: The Effects of Salt Concentration and pH Upon Water-Binding, Water-Holding and Protein Extractability of Turkey Meat . R. I. Richardson and J. M. Jones SENSORY EVALUATIONS: Sensory Profiling and Multidimensional Scaling of Selected Finnish Raye Breads . U. Hellemann, H. Tuorila, H. Salovaara and L. Tarkkonen SENSORY EVALUATIONS: Texture and Sensory Evaluation of Frankfurters Made with Different Formulations and Processes . C. M. Lee, R. C. Whiting and R. K. Jenkins INSTRUMENTATION AND METHODOLOGY: Adaptation of the Instron to Determine the Surface Tension of Ice Cream Mix . S. A. Wittinger and D. E. Smith INSTRUMENTATION AND METHODOLOGY: Double Direct Shear Test for Potato Texture . D. R. McComber, R. A. Lohnes and E. M. Osman INSTRUMENTATION AND METHODOLOGY: Computer Simulation of the Attrition Patterns of Particulated and Agglomerated Foods . M. Peleg and M. D. Normand INSTRUMENTATION AND METHODOLOGY: A Rapid Method for the Evaluation of Emulsion Stability of Non-Dairy Creamers . R. M. Tran and M. A. Einerson INSTRUMENTATION AND METHODOLOGY: Elongational Viscosity Measurements of Melting American Process Cheese . O. H. Campanella, L. M. Popplewell, J. R. Rosenau and M. Peleg     

益生菌对断奶鼠消化酶活力、肠道运动性及粘膜形态的影响

乳双歧杆菌、副干酪乳杆菌和植物乳杆菌是常见的益生菌,本研究系统评估了3株益生菌对断奶鼠消化代谢的调控作用。将断奶1周后的大鼠和小鼠分成对照组和益生菌处理组分别饲喂5周和4周,在此期间益生菌处理组每天分别灌胃1×109 CFU的乳双歧杆菌、副干酪乳杆菌和植物乳杆菌。试验期末,小鼠用于肠运动性试验,全部大鼠剖检取样进行生化及组织学分析。结果表明,乳双歧杆菌、副干酪乳杆菌和植物乳杆菌都能够显著促进小鼠肠道的运动性。同对照组相比,灌胃乳双歧杆菌、植物乳杆菌能够显著 （P<0.05） 增加大鼠的全期体重增重和肠液中胰蛋白酶活力,其中体重增重分别增加了13.33%和8.52%,胰蛋白酶活力分别提高了28.76%和31.13%。3株益生菌对大鼠的胃蛋白酶和淀粉酶活力、肝脏、脾脏、肾脏和胰腺重量及脏器系数均无显著影响。副干酪乳杆菌、植物乳杆菌均能够显著（P<0.05） 提高大鼠血清中总蛋白和球蛋白的含量,其中总蛋白含量分别增加了6.84%和9.12%,球蛋白含量分别增加了8.80%和6.82%。乳双歧杆菌、副干酪乳杆菌、植物乳杆菌生菌都会显著（P<0.05）升高大鼠血清中总胆固醇和高密度脂蛋白的含量,其中总胆固醇含量分别增加了44.35%、28.23%和17.74%,高密度脂蛋白含量分别增加了22.92%、27.08%和12.50%,对甘油三酯和低密度脂蛋白的含量无显著影响。此外,灌胃乳双歧杆菌、副干酪乳杆菌和植物乳杆菌均能够显著（P<0.05）提高大鼠的空肠和回肠绒毛高度和隐窝深度的比值以及回肠壁厚度,其中空肠绒毛高度和隐窝深度的比值分别增加了30.65%、19.35%和21.94%,回肠绒毛高度和隐窝深度的比值分别增加了30.21%、31.25%和35.94%,回肠壁厚度分别增加了21.14%、22.35%和27.51%。因此,乳双歧杆菌和植物乳杆菌能够通过促进肠道运动性、增加胰蛋白酶活力和改善肠道组织形态来促进宿主的消化吸收功能,进而提高宿主的体重增重同时又不会带来不良影响。     

LITERATURE ABSTRACTS

GENERAL PRINCIPLES: Density and Compressibility of Selected Food Powders Miutures . G. V. B. Canovas, J. Malave-Lopez and M. Peleg GENERAL PRINCIPLES: Lubricated Squeezing Flow of a Newtonian Liquid Between Elastic and Rigid Plates . O. H. Campanella and M. Peleg GENERAL PRINCIPLES: Surface Active Properties of Food Proteins: Effects of Reduction of Disulfide Bonds on Film Properties and Foam Stability of Glycinin . S. H. Kim and J. E. Kinsella INSTRUMENTATION & METHODOLOGY: Squeezing Flow Viosimetry of Peanut Butter . O. H. Campanella and M. Peleg FACTORS AFFECTING TEXTURE: Texture and Microstructure of Cooked Whole Egg Yolks and Heat-Formed Gels of Stirred Egg Yolk . S. A. Woodward and O. J. Cotterill FACTORS AFFECTING TEXTURE: Rheological Properties of Tomato Concentrates as Atrected by Particle Size and Methods of Concentration . T. Tanglertpaibul and M. A. Rao FACTORS AFFECTING TEXTURE: Shelf Life Study of Oil/Water Emulsions Using Various Commercial Hydrocolloids . K. A. Coia and K. R. Stauffer FACTORS AFFECTING TEXTURE: Flow Properties of Tomato Concentrates: Effect of Serum Viscosity and Pulp Content . T. Tanglertpaibul and M. A. Rao FACTORS AFFECTING TEXTURE: Modification of Physical Properties of Gelatin by Use of an Immobilized Protease in Combination with Molecular Sieves . T. Nishio and R. Hayashi FACTORS AFFECTING TEXTURE: Rheological and Water-Holding Properties of Gelled Meat Batters Containing Iota Carrageenan, Kappa Carrageenan or Xanthan Gum . E. A. Foegeding and S. R. Ramsey FACTORS AFFECTING TEXTURE: Effects of Flake Size on Textural and Cooking Properties of Restructured Beef and Pork Steaks . B. W. Berry, J. J. Smith and J. L. Secrist FACTORS AFFECTING TEXTURE: Influence of Sodium Tripolyphosphate and Sodium Chloride on Moisture Retention and Textural Characteritics of Chicken Breast Meat Patties . L. L. Young, C. E. Lyon, G. K. Searcy and R. L. Wilson FACTORS AFFECTING TEXTURE: Freeze-Textured Maine Shrimp Protein Extract . T. C. S. Yang FACTORS AFFECTING TEXTURE: Effects of Commercial Food Grade Enzymes on Proteolysis and Textural Change in Granular Cheddar Cheese . J. C. C. Lin, I. J. Jeon, H. A. Roberts and G. A. Milliken FACTORS AFFECTING TEXTURE: Effects of Sodium Chloride Concentration on Firmness Retention of Cucumbers Fermented and Stored with Calcium Chloride . H. P. Fleming, R. F. McFeeters and R. L. Thompson FACTORS AFFECTING TEXTURE: A Kinetic Interpretation of Textural Changes in Black Beans During Prolonged Storage . J. M. Aguilera and A. Ballivian FACTORS AFFECTING TEXTURE: Effect of Starch on Textural Properties of Surimi Gel . J. M. Kim and C. M. Lee FACTORS AFFECTING TEXTURE: Oral and Nonoral Perception of Solution Viscosity . C. M. Christensen and L. M. Casper     

几种特色茄子的腌制技术

介绍了糖醋茄干、薄荷扇茄和酒酿茄子等6种特色茄子的腌制技术。糖醋茄干是将鲜茄经整理切制、烫漂、压水、腌渍和曝晒等工序而制成,成品成、酸、甜适口。薄荷扇茄是将鲜茄经洗净、切割、盐水烫漂、嵌料、糖腌渍、晒制及压扁而制成,成品质地柔软,甜中有成,薄荷香味。酒酿茄子是将鲜茄经整理、清洗、刺眼、腌制,并加入酒酿,经密封后制得,成品皮脆肉嫩,醇香。十香豆豉瓜茄是将香瓜、茄子经预处理、腌渍、加香料入坛腌制、密封、日晒、取出晾干而制成,成品瓜脆茄嫩。醉豆豉瓜茄是用长瓜、圆茄经整理刺眼,和香辛料混合腌制,再用封缸酒与豆豉腌渍而成,产品醇香浓郁,脆而肉嫩,微辣。醋蒜茄是将茄子经整理洗净、蒸煮、压水、醋渍和密封而制成,成品蒜香茄嫩。     

灵芝菌对贵州3个茶树品种后发酵夏秋黑毛茶滋味特征的影响

目的 探究灵芝菌对贵州3个茶树品种后发酵夏秋黑毛茶滋味特征的影响。方法 以贵州黔茶1号、黔湄419、黔湄502夏秋茶所制黑毛茶为原料,灵芝菌为发酵接种菌株,经感官审评、化学组分检测,并结合化学计量学分析方法分析灵芝菌后发酵处理黑毛茶前后滋味成分变化,探究不同茶树品种经灵芝菌发酵处理后滋味品质差异。结果 灵芝菌处理夏秋茶会降低茶叶中苦涩味成分含量,增加部分氨基酸组分含量。黔茶1号、黔湄419和黔湄502的茶多酚含量下降率依次为63.76%、14.65%和34.81%;黔茶1号、黔湄419和黔湄502的游离氨基酸含量下降率为53.73%、57.96%和68.40%;黔茶1号、黔湄419和黔湄502的鲜味氨基酸含量下降率为74.32%、77.95%和84.25%;黔茶1号、黔湄419和黔湄502的甘氨酸含量增加217.22%、192.60%和119.53%;黔茶1号、黔湄419和黔湄502的苦味氨基酸含量下降率为34.94%、19.04%和20.07%。3个品种夏秋黑毛茶发酵后感官评分均有所提高,且能显著提高黔茶1号黑毛茶质量。结论 灵芝菌后发酵处理能提高夏秋茶滋味品质,黔茶1号比黔湄419...     

Use of Near Infrared Reflectance Spectroscopy in Forage Testing

Near infrared reflectance spectroscopy analysis of forages for CP, ADF, NDF, and minerals was compared with wet chemistry results. Infrared analysis was conducted with a NEO-Tech 51A where spectral equations had been transferred by the vendor from master calibrations. These calibrations were based upon microwave drying of feed samples and grinding through a cyclone mill. Our forage testing laboratory routinely tests by oven drying at 60°C and grinding with a Wiley mill through a 2-mm screen. Protein and ADF analyses were conducted on 66 corn silage, hay crop silage, and hay samples. Coefficients of determination for oven drying-wet chemistry and microwave-infrared, oven drying-wet chemistry and oven drying-infrared, and microwave-infrared and oven drying-infrared analysis were: .90, .93, and .98 for crude protein and .92, .94, and .96 for ADF. Infrared results were compared with wet chemistry CP and ADF for 265 corn silage, hay, and hay crop silage samples. Coefficients of determination were .97 for CP and .95 for ADF with standard errors of prediction of .92 and 1.98. The respective correlation coefficients for corn silage, hay crop silage, and hay were .94 and .73; .95 and .92; and .73 and .74. Although standard errors of prediction were low for all minerals, coefficients of determination were above .80 for Ca and K.     

LITERATURE ABSTRACTS

GENERAL PRINCIPLES: Effect of Different Tube Materials on the Steady Shear Tube Flow of Semi-Solid Foods . M. Dervisoglu and J. L. Kokini GENERAL PRINCIPLES: Predicting and Flow Properties of Food Suspensions of Plant Origin . M. A. Rao GENERAL PRINCIPLES: Viscoelastic Properties of Semisolid Foods and Their Biopolymeric Components . J. L. Kokini and G. J. Plutchok GENERAL PRINCIPLES: Measurement and Interpretation of Rheological Properties of Foods . E. B. Bagley and D. D. Christianson GENERAL PRINCIPLES: Mixed Proteinaceous Emulsiflers: Review of Competitive Protein Adsorption and the Relationship of Food Colloid Stabilization . Eric Dickinson GENERAL PRINCIPLES: Viscosity Behaviour of Vicia Faba Protein Isolates and Their Acetylated Derivatives . G. Schmidt, H. Schmandke and R. Schottel GENERAL PRINCIPLES: Functional Properties of Safflower Protein Isolates: Water Absorption, Whipping and Emulsifying Characteristics . Octavio Paredes-López and César Ordorica-Falomir INSTRUMENTATION ∧ METHODOLOGY: Dynamic Rheological Measurements on Heat-Induced Mymh Gels: An Evaluation of the Method's Suitability for the Filamentous Gels . Bjørg Egelandsdal INSTRUMENTATION ∧ METHODOLOGY: Extrusion Behavior of Different Soya Isolates and the Effect of Particle Size . P. R. Sheard, J. R. Mitchell and D. A. Ledward INSTRUMENTATION ∧ METHODOLOGY: Back-Extrusion of Non-Newtonian Fluids . J. F. Steffe and F. A. Osorio INSTRUMENTATION ∧ METHODOLOGY: Instrumentation for Rheological Measurements of Food . C. F. Shoemaker, J. I. Lewis and M. S. Tamura INSTRUMENTATION ∧ METHODOLOGY: Methods for Measurement of Rheological Changes During Thermally Induced Gelation of Proteins . D. D. Hamann INSTRUMENTATION ∧ METHODOLOGY: Effect of Sample Weight and Orientation in the Shear Press Testing of Canadian Bacon . G. E. Skinner and V. N. M. Rao INSTRUMENTATION ∧ METHODOLOGY: Effects of Freeze-Thaw Abuse on the Viscosity and Gel-Forming Properties of Surimi from Two Species . B. Y. Kim, D. D. Hamann, T. C. Lanier and M. C. Wu OBJECTIVE MEASUREMENT: Rheological and Thermal Properties of Agarose and Kappa-Carrageenan Gels Containing Urea, Guanidine Hydrochloride or Formamide . M. Watase and K. Nishinari OBJECTIVE MEASUREMENT: Comparative Studies of the Meehnnicpl Properties of Mixed Gels Formed by Kappa Carrageenan and Tarn Gum or Carob Gum . P. Cairns, V. J. Morris, M. J. Miles and G. J. Brownsey OBJECTIVE MEASUREMENT: The Precipitation of Bovine Plasma Proteins By Anionic Polysaccharides 2. Rheological Study of the Coprecipitates Obtained With Sodium Alginate and λ-Carrageenan . M. P. Goncalves, C. M. Bourgeois, J. Lefebvre and J.-L. Doublier OBJECTIVE MEASUREMENT: Research of Tests for pndiction and Estimation of Quantitative and Qualitative Characteristics of Wheat Gluten . J. C. Autran, B. Godon, K. Kobrehel, B. Laignelet and Y. Popenau OBJECTIVE MEASUREMENT: Comparison of Sensory and Instrumental Texture ProfUe Techniques for the Evaluation of Beef and Beef-Soy Loaves . P. L. Brady, F. K. McKeith and M. E. Hunecke OBJECTIVE MEASUREMENT: Sensory Characteristics, Shear Values and Cooking Properties of Ground Beef Patties Extended with Iron and Zinc-Fortified Soy Isolate, Concentrate or Flour . B. W. Berry, K. F. Leddy and C. E. Bodwell OBJECTIVE MEASUREMENT: Relationships of Instrumental Textural Roperties and Muscle Fiber Types to the Sensory Properties of Beef . S. C. Seideman and L. K. Theer FACTORS AFFECTING TEXTURE: Effects of an Autolyzed Yeast on Physical and Sensory Properties of Frankfurters . L. L. parks, J. A. Carpenter and J. O. Reagan FACTORS AFFECTING TEXTURE: Quantitative Analysis of Texture Change in Cod Muscle During Frozen Storage . Y. J. Kim FACTORS AFFECTING TEXTURE: Water Absorption in Cereal Grains and Its Effect on Their Rupture Stress . E. U. U. Ituen, J. P. Mittal and J. S. Adeoti FACTORS AFFECTING TEXTURE: Effect of Feed Moisture and Barrel Temperature on the Rheological Properties of Extruded Cowpea Meal . M. B. Kennedy, R. D. Phillips, V. N. M. Rao and M. S. Chinnan FACTORS AFFECTING TEXTURE: Culture Effect on Ripening Characteristics and Rheological Behavior of Cheddar Cheese . G. F. Amantea, B. J. Skura and S. Nakai FACTORS AFFECTING TEXTURE: Effects of Polysaccharide Stabilizers on the Nucleation of Ice . A. H. Muhr, J. M. V. Blanshard and S. J. Sheard FACTORS AFFECTING TEXTURE: Effect of Frozen Storage on Protein Denaturation in Bovine Muscle. II. Influence on Solubility, Viscosity and Electrophoretic Behaviour of Myoilbrillor Proteins . J. R. Wagner and M. C. Anon FACTORS AFFECTING TEXTURE: Heat Treatment of Whipping Cream II Effect on Cream Plug Formation . A. Streuper and A. C. M. Van Hooydonk FACTORS AFFECTING TEXTURE: Innuence of Added κ-Casein and β-Lactoglobulin in the Heat Coagulation Time/pH Profile of Buffalo Milk . M. K. Bhavadasan, Y. S. Rajput and N. C. Gonguli FACTORS AFFECTING TEXTURE: Effect of Sweeteners/Stabilizer Interactions on the Viscosity and Freezing Point of Ice Cream Mix . S. A. Wittinger and D. E. Smith FACTORS AFFECTING TEXTURE: Functional Properties of Meal Products of the Nigerian ‘Red Skin’ Groundnut (Arachis hypogaea L.) . Alfred I. Ihekoronye FACTORS AFFECTING TEXTURE: Effects of Wheat Proteins on the Viscoelastic Properties of Starch Gels . Lennart Lindahl and Ann-Charlotte Eliasson RELATIONSHIP TO STRUCTURE: Degradation in Muscle Fibreconnective Tissue Junctions in the Spotted Trevalla (Seriolella punctata) Examined by Scanning Electron Microscopy . H. Allan Bremner and Ian C. Hallett RELATIONSHIP TO STRUCTURE: Biochemical Components of Wheat Flour in Connection With Cookie Quality . M. Cottenet     

LITERATURE ABSTRACTS

Instrumentation and Methodology: 'Study of the Mixing Behaviour of some Foods Using an Electronic Recording Mixer' by G. C. Evans *, J. M. de Man*, and P. W. Voisey**.
Instrumentation and Methodology:'Measurement of Blood Viscosity' by F. R. Spinelli and C. D. Meier.
Instrumentation and Methodology:'"Miniviscometer", A Small Couette Instrument' by C. W. McCutcheon
Instrumentation and Methodology:'Relationship Between the GRL Spaghettit Tenderness Tester and Sensory Testing of Cooked Spaghetti' by R. R. Matsuo and G. N. Irvine.
Instrumentation and Methodology:'Apparatus for Routine Measurement of Food Deformation in Texture Tests at Low Deformation Rates' by P. W. Voisey and D. J. Buckley.
Instrumentation and Methodology:'Evaluation of Methods for Measuring Texture Using Fresh Apples as the Test Material' by M. V. Zaehringer*and M. M. Hard**
Factors Affecting Texture: 'Rheological and Sensory Evaluation of Sweet Corn Maturity' by M. A. Tung*, M. R. Garland*, A. R. Maurer**, and T. K. Watson**(*.
Factors Affecting Texture: 'Surface-Active Principle in Black Gram (Phaseolus mango) and Its Role in the Texture of Leavened Foods Containing the Legume' by N. S. Susheelamma and M. V. L. Rao.
Factors Affecting Texture: 'The Tenderising Effect of a Muscle Proteinase on Beef by I.F. Penny, C. A. Voyle, and E. Dransfield.
Factors Affecting Texture: 'Butterines Made from Rape Seel Oil' by T. Alsafar.
Factors Affecting Texture: 'Post-Mortem Glycolytic and Physical Changes in Turkey Breast Muscle' by J. Vanderstoep and J. F. Richards.     

风味咸鱼中乳酸菌和葡萄球菌的分离与鉴定

为优化咸鱼的加工工艺,对优质北海淡口咸鱼进行乳酸菌和葡萄球菌的分离和鉴定。分别采用MRS和MSA培养基,从咸鱼中分离出乳酸菌13 株和葡萄球菌10 株。经生理生化实验初筛出乳酸菌3 株、葡萄球菌两株。初步鉴定乳酸菌为戊糖片球菌,两株葡萄球菌分别为肉糖葡萄球菌和木糖葡萄球菌。     

LITERATURE ABSTRACTS

GENERAL PRINCIPLES: Apparent Shear Viscosity of Native Egg White. E.R. Lang and C. Rha GENERAL PRINCIPLES: A Computer Assisted Analysis of Some Theoretical Rate Effects in Mastication and in Deformation Testing of Foods. M. Peleg and M.D. Normand GENERAL PRINCIPLES: Rheological and Sensory Characterization of Comminuted Fish Products from Mechanically Recovered Fish Flesh. R.M. Arocha GENERAL PRINCIPLES: A Rheological Characterization of Heat-Induced Protein Gels. D.W. Hickson GENERAL PRINCIPLES: Study on the Viscosity and Density Equations Regarding Temperature of Vegetable Oils and Salad and Frying Oils. K. Kubota, S. Kurisu, K. Suzuki, T. Matsumoto and H. Hosaka GENERAL PRINCIPLES: Physicochemical Rheology of Fruit Juices and Purees. E. Costell and L. Duran GENERAL PRINCIPLES: Thixotropic Properties of Colloidal Precipitates in Preliming Juice. J. Grabka GENERAL PRINCIPLES: Development of a Rheological Constitutive Relation for a Soft Biological Tissue. M. G. Sharma and S. Rafie GENERAL PRINCIPLES: Nuclear Magnetic Resonance Studies of Wheat Starch Pastes. P. T. Callaghan, K. W. Jolley, J. Lelievre and R. B. K. Wong GENERAL PRINCIPLES: A Rheological Model of Nonlinear Viscoplastic Solids. K. Peleg GENERAL PRINCIPLES: The Effects of Spoilage on the Dielectric Properties of Frozen Fish. Michael Kent GENERAL PRINCIPLES: Production of Extrusion-Texturized Protein Preparations. J. Scpendowski, L. Smietana and J. Luraw GENERAL PRINCIPLES: Parameters Influencing Spun Protein Fiber Properties 1 – Dope Preparation. M. Boulet, F. Castaigne and R. R. Riel GENERAL PRINCIPLES: Parameters Influencing Spun Protein Fiber Properties 2 – Unit Operations. F. Castaigne, M. Boulet, R. R. Riel GENERAL PRINCIPLES: Influence of Ions of Low Molecular Weight on Solubility and Rheological Properties of Wheat Gluten. R. Kieffer, J. J. Kim and M. D. Belitz OBJECTIVE MEASUREMENTS: Intra- and Intermuscular Variation of Shear Force of Beef. B. L. Dumont OBJECTIVE MEASUREMENTS: A Method for Measuring the Firmness of Cooked Soybean. H. P. S. Makker, O. P. Sharma and S. S. Negi OBJECTIVE MEASUREMENTS: Correlation Between the Dry Matter Content of Fat-Free Cottage Cheese and Its Apparent Viscosity Measured During Production. G. Corrieu, M. Lalande and A. Fissette OBJECTIVE MEASUREMENTS: Instrument Prediction of the Lean Content of Pork Carcasses Using Ultrasound or Light Reflectance. S. D. M. Jones and C. R. Haworth SENSORY MEASUREMENTS: Consumer Reaction to Processed Suntan Apples. A. A. Williams, G. M. Arnold and M. Warrington FACTORS AFFECTING TEXTURE: Correlation Between Rheological Parameters and Microstructure of Sausages of Bologna Type. L. Feher, K. Kabok and T. Huszka FACTORS AFFECTING TEXTURE: The Effect of Apple Maturity and Firmness on Bruise Volume. R. G. Diener, S. Singha and J. Petit FACTORS AFFECTING TEXTURE: Extrusion Cooking of High-Fiber Cereal Product with Crispbread Character. Y. Andersson, B. Hedlund, L. Jonsson and S. Svensson FACTORS AFFECTING TEXTURE: Textural Properties of Untoasted and Toasted Rusks. H. D. Tscheuschner and U. Bindrich FACTORS AFFECTING TEXTURE: Instrumental and Sensory Analysis of the Action of Catheptic enzymes on Flaked and Formed Beef. S. H. Cohen, R. A. Segars, A Cardello, J. Smith and f. M. Robbins FACTORS AFFECTING TEXTURE: Morphological and Textural Comparisons of Soybean Mozzarella Analogs Prepared with Different Hydrocolloids. C. S. Yang and M. V. Taranto FACTORS AFFECTING TEXTURE: Effects of Freezing and Thawing Green Curds Before Processing on the Rheological Properties of Cream Cheese. T. Hori FACTORS AFFECTING TEXTURE: Textural Properties of Salted Radish Root and Their Changes During Salting. K. Kaneko, M. Kurosaka and Y. Maede FACTORS AFFECTING TEXTURE: Canned Shrimp Texture as a Function of Its Heat History. L. Y. Ma., J. C. Deng, E. M. Ahmed and J. P. Adams FACTORS AFFECTING TEXTURE: Factors Affecting the Staling of Madeira Slab Cake. Robin C. E. Guy FACTORS AFFECTING TEXTURE: Influence of Variety, Site and Storage on Physical, Sensory and Compositional Aspects of Mashed Potato. Richard M. Faulks and Nerys M. Griffiths FACTORS AFFECTING TEXTURE: Susceptibility of Yoghurt to Syneresis. Comparison of Centrifugation and Draining Methods. V. R. Harwalker and M. Kalob FACTORS AFFECTING TEXTURE: Gelation of UHT Milk During Storage – A Comparison of Some Chemical and Physical Methods of Analysis. K. Guthy, Y. H. Hong and H. Klostermeyer FACTORS AFFECTING TEXTURE: Age Gelation of Sterilized Milks. V. R. Harwalkar     

LITERATURE ABSTRACTS

GENERAL PRINCIPLES: Contact Angles in a Biological Setting: Measurements in the Human Oral Cavity. M. D. Jendresen, R.E. Baier and P. Glantz GENERAL PRINCIPLES: Toxicological Evaluation of Carrageenans 2. Definition, Structure, Manufacture, Properties and Applications. G. Martin. GENERAL PRINCIPLES: Thermal Denaturation and Aggregation of β-Lactoglobulin in Solution. Electron Microscopic Study. V.R. Harwalker and M. Kalab GENERAL PRINCIPLES: Relationship Between Nature of Vegetable Oil, Emulsifier and the Stability of W/O Emulsion. N. Garti and G.F. Remon GENERAL PRINCIPLES: Heat Stability of Fish Muscle Proteins. R.G. Poulter, D.A. Ledward, S. Godber, G. Hall and B. Rowlands GENERAL PRINCIPLES: Rheological Characterization of Microcrystalline Cellulose Dispersions: Avicel RC 591. G.J. Brownsey and M.J. Ridout GENERAL PRINCIPLES: Rheological Property of Myosin B Fibre and the Fibre of the Mixture of Myosin B and Soya Protein; and the Interaction Between Myosin B and Soya Protein. Liang-Chuan Lin and Tatsumi Ito GENERAL PRINCIPLES: Surface Rheological Properties of Hyaluronic Acid Solutions. H.R. Kerr and B. Warburton GENERAL PRINCIPLES: Macroscopic Wrinkling of Muscle Fibres, a Source of Error in Objective Assessment of Meat Toughness. R.W.D. Rowe GENERAL PRINCIPLES: The Physical Basis of Meat Texture: Observations on the Fracture Behaviour of Cooked Bovine M. Semitendinosus, P.P. Purslow GENERAL PRINCIPLES: Frictional Effects in Compressional Deformation of Gelatin and Starch Gels and Comparison of Material Response in Simple Shear, Torsion, and Lubricated Uniaxial Compression. (Research Note), E.B. Bagley, D.D. Christianson and W.J. Wolf GENERAL PRINCIPLES: Edge Fracture in Cone/Plate Viscometry. R.I. Tanner GENERAL PRINCIPLES: Rheological Properties of Deacetylated Xanthan in Aqueous Media. M. Tako and S. Nakamura GENERAL PRINCIPLES: Rheological Behavior of High Methoxyl Pectin Gels with a Cone-Plate Rheometer. Relationships Between Rheological Parameters and Gel Composition. S.M. Fiszman, E. Costell and L. Duran GENERAL PRINCIPLES: Thixotropic Properties of Gelatinized Rice Starch Solutions. J.B. Kim, Y.S. Kim, S.Y. Lee, Y.R. Pyun GENERAL PRINCIPLES: Structure-Function Relationships in Food Proteins: Subunit Interactions in Heat-Induced Gelatin of 7S, 11S and Soy Isolate Proteins. Utsumi, S. and J.E. Kinsella INSTRUMENTAL MEASUREMENTS: Analysis of a Biscuit Test: Preliminary Study of Significant Criteria and Prediction Breeding. G. Branlard, K. Benoualid, M. Roussel, J. Grebaut and Y. Seince INSTRUMENTAL MEASUREMENTS: Application of Small Sample Back Extrusion Test for Measuring Texture of Cooked Sorghum Grain. G.B. Cagampang, A.W. Kirleis and J.S. Marks OBJECTIVE MEASUREMENTS: Rheological Properties of Comminuted Meat Batters and the Relationship to Constituent Interactions. D.L. Burge, Jr. and J.C. Acton OBJECTIVE MEASUREMENTS: A Screening Test for Grain Hardness in Sorghum Employing Density Grading in Sodium Nitrate Solution. L. Hallgren and D.S. Murty SUBJECTIVE MEASUREMENTS: The Design and Practical Use of an Overall Quality Index for Food Products. P. Molnar CONSUMER ACCEPTANCE: Relative Importance of Sensory Factors to Acceptance: Theoretical and Empirical Analyses. H.R. Moskowitz FACTORS AFFECTING TEXTURE: Effects of Temperature, Light and Storage Time on the Sensory and Exudate Loss Characteristics of Vacuum-or-Nitrogen-Packed Ground Beef. B.H Lee, R.E. Simard, C.L. Laleye and R.A. Holley FACTORS AFFECTING TEXTURE: Changes in Freezing Point and Rheological Properties of Ice Cream Mix as a Function of Sweetner System and Whey Substitution. D.E. Smith, A.S. Bokshi and C.J. Lomauro FACTORS AFFECTING TEXTURE: Effect of Purging on Quality Changes of Ice-Chilled Freshwater Prawn, Machrobrachium Rosenbergii. W.K. Nip, J.H. Moy and J.J. Tzang FACTORS AFFECTING TEXTURE: Functional Aspects of Blood Plasma Proteins II Gelling Properties. N.K. Howell and R. A. Lowrie FACTORS AFFECTING TEXTURE: Functional Aspects of Blood Plasma Proteins III Interaction With Other Proteins and Stabilizers. N.K. Howell and R.A. Lawrie FACTORS AFFECTING TEXTURE: Role of Carbohydrates in Soya Extrusion. P.R. Sheard, D.A. Ledward and J.R. Mitchell FACTORS AFFECTING TEXTURE: Studies on the Development of Texturized Vegetable Products by the Extrusion Process. 1. Effect of Processing Variables on Protein Properties. C.B. Pham and R.R. DelRosario FACTORS AFFECTING TEXTURE: Engineering Factors in the Production of Concentrated Fruit Juices. II Fluid Physical Properties of Grape Juices. M. Moresi and M. Spinosi FACTORS AFFECTING TEXTURE: Phytate, Phosphorus and Calcium Contents of Mature Seeds of Vicia Faba 1. And Their Relation to Texture of Pressure-Cooked Faba Bean. A.M. El-Tabey Shehata, T.M. Abu-Bakr and N.M. El-Shimi FACTORS AFFECTING TEXTURE: A Kinetic Study of Bread Staling by Differential Scanning Calorimetry and Compressibility Measurements. The Effect of Different Grists. Peter L. Russell FACTORS AFFECTING TEXTURE: A Kinetic Study of Bread Staling by Differential Scanning Calorimetry and Compressibility Measurements. The Effect of Added Monoglyceride. Peter L. Russell FACTORS AFFECTING TEXTURE: Rheological Behavior of Venezuelan Arepa Dough from Precooked Corn Flour. M.R. de Padua and H.P. Maroun FACTORS AFFECTING TEXTURE: Effects of Monoglycerides on the Staling of Bread. Y. Malkki, J. Paakkanen and K. Eerola FACTORS AFFECTING TEXTURE: The Influence of the Interaction of Mono-and Di-Glycerides with Milk Proteins on the Rheology and Stability of Food Emulsions. G. Doxastakis and P. Sherman RELATIONSHIP TO STRUCTURE: Hydrophobicity of ν-Cliadins 45 and 42 of Triticum Durum Wheat (Triticum Durum DESF). M. Cotenet, K. Kobrehel and J.-C Autran     

LITERATURE ABSTRACTS

GENERAL PRINCIPLES: Cell Wall Compitions and Enzymes of Potatoes, Jicamas and Chinese Water Chestnuts . R. Pressey GENERAL PRINCIPLES: Stress Relaxation Behavior of Apple Pomace and Effect of Temperature, Pressing Aid and Compaction Rate on Juice Yield . S. H. I. Al-Mashat and C. A. Zuritz GENERAL PRINCIPLES: Linear Programming and Response Surface Methodology to Optimize Surimi Gel Texture . J. S. Chen, C. M. Lee and C. Crapo GENERAL PRINCIPLES: The Relationship of the Microstructure of Cooked Ham to its Properties and Quality . K. Katsaras and K. D. Budras INSTRUMENTAL MEASUREMENTS: Dynamic Rheological Measurement of Structure Development in High-Methoxyl Pectin/Fructose Gels . M. A. Rao and H. J. Cooley INSTRUMENTAL MEASUREMENTS: Evolution of Mechanical Characteristics of Tomatoes of Two Varieties During Ripening . R. Thiagu, N. Chand and K. V. R. Ramana METHODOLOGY & INSTRUMENTATION: Experimental Evidence of Slip Development in Capillaries and a Method to Correct for End Effects in the Flow of Xanthan Solutions . L. de Vargas, J. Perez-Gonzalez and J. de J. Romero-Barenque METHODOLOGY & INSTRUMENTATION: Measurement of Biaxial Extensional Viscosity of Wheat Flour Doughs . H. Huang and J. L. Kokini METHODOLOGY & INSTRUMENTATION: Development and Evaluation of an Automated Grain Breakage Tester for Determining Corn Breakage Susceptibility . S. A. Watson, W. D. Kreider, M. J. Sciarini and H. M. Keener METHODOLOGY & INSTRUMENTATION: Evaluation of a Modified Stein Breakage Tester for More Rapid Determination of Corn Breakage Susceptibility . S. A. Watson and H. M. Keener SENSORY ASSESSMENT: A Study of Texture-Flavor Interactions Using Free-Choice Profiling . I. Jaime, D. J. Mela and N. Bratchell FACTORS AFFECTING TEXTURE: Physical and Sensory Characteristics of Low Fat Ground Beef Patties . M. F. Miller, M. K. Andersen, C. B. Ramsey and J. O. Reagan FACTORS AFFECTING TEXTURE: Carbohydrate or Protein Based Fat Mimicker Effects on Ice Milk Properties . K. Schmidt, A. Lundy, J. Reynolds and L. N. Yee FACTORS AFFECTING TEXTURE: Rheological Behavior of Frozen and Thawed Low-Moisture Part-Skim Mozzarella Cheese . H. A. Diefes, S. S. H. Rizvi and J. A. Bartsch FACTORS AFFECTING TEXTURE: Base-Mediated Firmness Retention of Sweetpotato Products . W. M. Walter, Jr., H. P. Fleming and R. F. McFeeters FACTORS AFFECTING TEXTURE: Rheological Relationships Between Surimi Sol and Gel as Affected by Ingredients . B. Yoo and C. M. Lee FACTORS AFFECTING TEXTURE: Changes in Rheological Properties of Hydroxypropyl Potato Starch Pastes During Freeze-Thaw Treatments. III. Effect of Cooking Conditions and Concentration of Starch Paste . H. R. Kim, P. Muhrbeck and A.-C. Eliasson FACTORS AFFECTING TEXTURE: Amylopectin-Staling of Cooked Nonwaxy Milled Rices and Starch Gels . C. M. Perez, C. P. Villareal, B. O. Juliano and C. G. Biliadens FACTORS AFFECTING TEXTURE: The Role of Xanthan Gum in White Layer Cakes . R. A. Miller and R. C. Hoseney FACTORS AFFECTING TEXTURE: Effects of Flour Type and Dough Retardation Time on the Sensory Characteristics of Pizza Crust . D. M. Larsen, C. S. Setser and J. M. Faubion GENERAL PRINCIPLES: Sedimentation of a Single Particle in Systems of Xanthan with Locust Bean Gum in Relation to the Rheological Behaviour . H. Luyten W. Kloek and T. van Vliet INSTRUMENTATION & METHODOLOGY: Development of a Single-Kernel Wheat Characterization System . C. R. Martin. R. Rouser and D. L. Brabec INSTRUMENTATION & METHODOLOGY: Measurement of Single-Kernel Wheat Hardness Using Near-Infrared Transmittance . S. R. Delwiche INSTRUMENTATION & METHODOLOGY: Modal Analysis of the Dynamic Behavior of Pineapples and Its Relation to Fruit Firmness . H. Chen and J. Dr Baerdemaeker INSTRUMENTATION & METHODOLOGY: Breakage Susceptibility of Corn of Different Stress-Crack Categories . S. Gunasekaran and K. Muthukumarappan     

Rapid and accurate bacterial identification in probiotics and yoghurts by MALDI-TOF mass spectrometry

Probiotic food is manufactured by adding probiotic strains simultaneously with starter cultures in fermentation tanks. Here, we investigate the accuracy and feasibility of matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry (MALDI-TOF MS) for bacterial identification at the species level in probiotic food and yoghurts. Probiotic food and yoghurts were cultured in Columbia and Lactobacillus specific agar and tested by quantitative real-time PCR (qPCR) for the detection and quantification of Lactobacillus sp. Bacterial identification was performed by MALDI-TOF analysis and by amplification and sequencing of tuf and 16S rDNA genes. We tested 13 probiotic food and yoghurts and we identified by qPCR that they presented 10(6) to 10(7) copies of Lactobacillus spp. DNA/g. All products contained very large numbers of living bacteria varying from 10(6) to 10(9) colony forming units/g. These bacteria were identified as Lactobacillus casei, Lactococcus lactis, Bifidobacterium animalis, Lactobacillus delbrueckii, and Streptococcus thermophilus. MALDI-TOF MS presented 92% specificity compared to the molecular assays. In one product we found L. lactis, instead of Bifidus spp. which was mentioned on the label and for another L. delbrueckii and S. thermophilus instead of Bifidus spp. MALDI-TOF MS allows a rapid and accurate bacterial identification at the species level in probiotic food and yoghurts. Although the safety and functionality of probiotics are species and strain dependent, we found a discrepancy between the bacterial strain announced on the label and the strain identified. Practical Application: MALDI-TOF MS is rapid and specific for the identification of bacteria in probiotic food and yoghurts. Although the safety and functionality of probiotics are species and strain dependent, we found a discrepancy between the bacterial strain announced on the label and the strain identified.     

LITERATURE ABSTRACTS

GENERAL PRINCIPLES: Distinguishing Among Bruises in Peaches Caused by Impact, Vibration and Compression . P.J. Vergano, R.F. Testin, and W.C. Newall, Jr. GENERAL PRINCIPLES: Prediction of Physical Dough Properties from Glutenin Subunit Composition in Bread Wheats: Correlation Studies . R.B. Gupta, F. Bekes, and C.W. Wrigley GENERAL PRINCIPLES: A Mechanism of Bread Firming. I. Role of Starch Swelling . M.L. Martin, K.J. Zeleznak, and R.C. Hoseney GENERAL PRINCIPLES: A Mechanism of Bread Firming. II. Role of Starch Hydrolyzing Enzymes . M.L. Martin and R.C. Hoseney GENERAL PRINCIPLES: Prediction of the Non-Linear Viscoelastic Properties of a Hard Wheat Flour Dough Using the Bird-Carreau Constitutive Model . S.J. Dus and J.L. Kokini GENERAL PRINCIPLES: The Study of the Glass Transition of Glutenin Using Small Amplitude Oscillatory Rheological Measurements and Differential Scanning Calorimetry . A.M. Cocero and J.L. Kokini GENERAL PRINCIPLES: The Cox-Merz Rule Extended: A Rheological Model for Concentrated Suspensions and Other Materials with a Yield Stress . D. Doraiswamy, A.N. Mujumdar, I. Tsao, A.N. Beris, S.C. Danforth and A.B. Metzner GENERAL PRINCIPLES: Characterization of Nonlinear Creep Behavior of Two Food Products . R. Lu and V.M. Puri GENERAL PRINCIPLES: The Nonlinear Elastic Behavior of Polydisperse Hexagonal Foams and Concentrated Emulsions . A.M. Kraynik, D.A. Reinelt and H.M. Princen GENERAL PRINCIPLES: A Test Cell for Meat Cohesiveness Using the Instron Universal Testing Machine . H.W. Ockerman, D.M. Greene and R.R. Hodges GENERAL PRINCIPLES: Results of Testing Sensory Evaluation Methods . P. Molnar, V. Nágel and L. Katona GENERAL PRINCIPLES: Universal Laboratory Texturometer . Á. Álmos GENERAL PRINCIPLES: Textural Determination of “Montomorency” Cherries Using Shear/Compression and Stone Removal . C.R. Santerre, J.N. Cash and A.F. Iezzoni GENERAL PRINCIPLES: A Device to Measure the Dynamic Shear Properties of Small Samples . M.E. Mackay and C.A. Cathey GENERAL PRINCIPLES: A Probe Impact Sensor for Fruit Firmness Measurement . M. Delwiche and Y. Sarig GENERAL PRINCIPLES: Prediction of Apple Bruising Due to Impact on Different Surfaces . P. Chen and R. Yazdanu GENERAL PRINCIPLES: Impact Bruise Resistance of Peaches . G.H. Brusewitz, T.G. McCollum and X. Zhang GENERAL PRINCIPLES: Triaxial Test Sample Size Effect on Stress Relaxation of Wheat En Masse . R.G. Bock, V.M. Puri and H.B. Manbeck GENERAL PRINCIPLES: Electromyographic Measurement of Textural Changes of Foodstuffs During Chewing . H. Sakamoto, T. Harada, T. Matsukubo, Y. Takaesu and M. Tazaki GENERAL PRINCIPLES: Evaluation of Food Texture by the Masticatory Pattern. I. Analysis of Chewing Force Pattern in the Mouth . J. Takahashi and F. Nakazawa GENERAL PRINCIPLES: The Measurement of Mechanical Properties of Cheese . J.H. Dobrzycki and N. Baryko-Pikielna GENERAL PRINCIPLES: A Simple Antibody-Based Test for Dough Strength. I. Development of Method and Choice of Antibodies . J.H. Skerritt GENERAL PRINCIPLES: II. Genotype and Environmental Effects . INSTRUMENTAL MEASUREMENTS: Oscillatory Rheometry of Starch-Water Systems: Effect of Starch Concentration and Temperature . L.M. Hansen, R.C. Hoseney and J.M. Faubion INSTRUMENTAL MEASUREMENTS: Characterization of the Maturation Process by Changes in Pineapple Fruit Texture . H. Vega-Mercado and I. Beauchamp de Caloni INSTRUMENTAL MEASUREMENTS: Relationship of Properties of Rice to Texture of Japonica and Japonical/Indica cooked rice . Y.H. Hong, H.S. Ahn, S.K. Lee and S.K. Jun INSTRUMENTAL MEASUREMENTS: Investigations on the Physical Properties of Whipped Egg White Foam by the Multi-Biting Test . S. Tsuji CORRELATING SENSORY WITH INSTRUMENTAL MEASUREMENTS: Prediction of Sensory Evaluation of Gel Texture by Instrumental Measurement . Y. Watanabe, K. Amaike, T. Tomita and H. Aoki CORRELATING SENSORY WITH INSTRUMENTAL MEASUREMENTS: Textural Classification of Foods Based on Warner-Bratzler Shear . N. Chand CORRELATING SENSORY WITH INSTRUMENTAL MEASUREMENTS: The Relation Between Instrumental Firmness Measurements and Sensory Chewing Texture of Briihwurst Sausages . P.G. Klettner SENSURY ASSESSMENT: Sensory Analysis of Fiber Formulated Ground Pork Patties . S1. Todd, F.E. Cunningham, J.R. Schwenke and S.J. Goetsch. SENSURY ASSESSMENT: Sensory and Instrumental Evaluation of the Mouthfeel of Beer . S.A. Langstaff, J.-X. Guinard and M.J. Lewis SENSURY ASSESSMENT: The Effect of Temperature on Carbonation Perception . N.J. Newton Yau and M.R. McDaniel SENSURY ASSESSMENT: Evaluation of Cooking Quality of Potatoes Using Sensory and Instrumental Methods . I. Sensory Evaluation. G. Böehler, F. Escher and J. Solms FACTORS AFFECTING TEXTURE: Breakage Susceptibility of Shelled Corn Due to Rehydration and Redrying . L.G. Tabil, A. Noomhorm and L.R. Verma FACTORS AFFECTING TEXTURE: Dry Bean (Phaseofus vulgaris) Hardening and the Consequences of Pectin Methylesterase Activity in Storage . M.M. Mafuleka, D.B. Ott, G.L. Hosfield and M.A. Uebersax FACTORS AFFECTING TEXTURE: Shelf-Life Extension of Michigan Apples Using Sucrose Polyester . Y.-L. Chai, D.B. Ott and J.N. Cash FACTORS AFFECTING TEXTURE: Precooling and Modified Atmosphere Storage of Green Asparagas . Y. Gari Cpy, G.S.V. Raghaven, F. Castaigne, J. Arul and C. Willemot FACTORS AFFECTING TEXTURE: Texture Analysis of Cheddar Cheese Made From Ultrafiltered Milk . S. Lakhani, E.A. Gullett, L.K. Ferrier and A.R. Hill FACTORS AFFECTING TEXTURE: Ultrastructural and Textural Changes in Processed Carrot Tissue . E.M. Ahmed, S. Mirza and A.G. Arreola FACTORS AFFECTING TEXTURE: The Effect of Marination and Cooking on the Mechanical Properties of Intramuscular Connective Tissue . G.J. Lewis and P.P. Purslow FACTORS AFFECTING TEXTURE: Effect of Vacuum Packaging on Changes Associated with Frozen Cod Fillets . M.E. Sirois, B.M. Slaby, R.H. True and R.E. Martin FACTORS AFFECTING TEXTURE: Rheological and Structural Properties of Wiener-Type Products Substituted with Vital Wheat Gluten . C.-Y. Ma, S.H. Yiu and G. Khanzada FACTORS AFFECTING TEXTURE: Effect of Washing on the Texture and Microstructure of Frozen Fish Mince . K.S. Yoon, C.M. Lee and L.A. Hufnagel FACTORS AFFECTING TEXTURE: Influence of Cultivar, Fruit Maturity and Fruit Anatomy on Apple Sauce Particle Size and Texture . W.P. Mohr FACTORS AFFECTING TEXTURE: Mechanical Properties of Composite Fruit Products Based on Hydrocolloid Gel, Fruit Pulp and Sugar . A. Nussinovitch, I.J. Kopelman and S. Mizrahu FACTORS AFFECTING TEXTURE: Effects of Freezing Rate and Storage Time on the Structural Properties of Minced Meat . G.S. Mittal and S. Barbut RELATIONSHIP TO STRUCTURE: Mechanics of Parenchyma Tissue Based on Cell Orientation and Microstructure . Q. Gao and R.E. Pin     

Heavy metals in toys and low-cost jewelry: critical review of U.S. and Canadian legislations and recommendations for testing

High metal contamination in toys and low-cost jewelry is a widespread problem, and metals can become bioavailable, especially via oral pathway due to common child-specific behaviors of mouthing and pica. In this review, the U.S., Canadian, and European Union (EU) legislations on metals in toys and jewelry are evaluated. A literature review on content, bioavailability, children's exposure, and testing of metals in toys and low-cost jewelry is provided. A list of priority metals is presented, and research needs and legislative recommendations are addressed. While the U.S. and Canadian legislations put emphasis on lead exposure prevention, other toxic elements like arsenic and cadmium in toy materials are not regulated except in paint and coatings. The EU legislation is more comprehensive in terms of contaminants and scientific approach. Current toy testing procedures do not fully consider metal bioavailability. In vitro bioaccessibility tests developed and validated for toys and corresponding metal bioaccessibility data in different toy matrices are lacking. The U.S. and Canadian legislations should put more emphasis on metal bioavailability and on other metals in addition to lead. A two-step management approach with mandatory testing of toys for total metal concentrations followed by voluntary bioaccessibility testing could be implemented.     

Genetic (Co) Variances for Milk and Fat Yield in California,New York,and Wisconsin for an Animal Model by Restricted Maximum Likelihood

Two samples of data from approximately 4000 Holstein cows were analyzed by REML with a multivariate (milk and fat yields) animal model for first lactations started in 1970 through 1977 and in 1978 through 1985 and also for first lactation records started in low, middle, and high production herds in 1978 through 1985 separately for California, New York, and Wisconsin herds. Heritability estimates for milk yield (similar for fat yield) ignoring category of herd production were .29 for 1978 and later and .34 for 1977 and earlier. Estimates for low, middle, and high production herds were .23, .29, and .36. Estimates of genetic correlation between milk and fat averaged .62 for 1978 and later and .73 for 1977 and earlier; for 1978 and later these estimates were greater for California than for New York and Wisconsin, .70 vs. .58 overall. Phenotypic and environmental variances associated with low production herds were less than for middle and high production herds, but differences between middle and high herds varied by state and sample. The pattern of estimates of genetic and environmental parameters suggests that differences between California, New York, and Wisconsin are not very important for genetic evaluation procedures. Production of herds does seem important.     

4种花生粕蛋白的理化性质及功能特性研究

以花生粕为原料,采用分级提取工艺提取花生清蛋白、球蛋白、醇溶蛋白和谷蛋白,研究4种花生粕蛋白的理化性质和功能特性。扫描电镜观察,4种花生粕蛋白的形态结构各不相同。SDS-PAGE法测定分子量表明,清蛋白含有4种亚基,相对分子量分别为70kDa、40kDa、30kDa、25kDa和15kDa;醇溶蛋白含有2种亚基,分子量分别为25kDa和15kDa;球蛋白含有5种亚基,分子量分别为40kDa、38kDa、30kDa、25kDa和15kDa;谷蛋白含有4种亚基,分子量分别为40kDa、30kDa、25kDa和15kDa。花生清蛋白、醇溶蛋白、球蛋白、谷蛋白的等电点分别为pH3.6、pH5.2、pH4.6、pH5.0。功能性质研究表明,球蛋白的持水性最好,为1.52mL/g,其次为谷蛋白1.10mL/g,清蛋白和醇溶蛋白的持水性较低分别为0.49mL/g、0.14mL/g;清蛋白的持油量相对较高为8.21mL/g,其次为球蛋白为7.16mL/g,谷蛋白和醇溶蛋白的持油量相对较低,分别为3.82mL/g和5.49mL/g;清蛋白的乳化性和乳化稳定性相对较高,乳化能力EC值和乳化稳定性ES值分别为71.4% 和83.33%,谷蛋白次之,EC和ES值分别为66.7% 和82.86%,醇溶蛋白和球蛋白相对较低,EC值分别为64.0% 和62.2%,ES值分别为82.35% 和76.67%。综上,花生粕清蛋白的持油性、乳化性和乳化稳定性相对较好。     

Joint estimation of genetic parameters for test-day somatic cell count and mastitis in the United Kingdom

Genetic parameters were estimated in a joint analysis of log(e)-transformed somatic cell count (TSCC) with either mastitis as a binary trait (MAS) or the number of mastitis cases (NMAS) in Holstein-Friesian cows for the first 3 lactations using a random regression model. In addition, a multi-trait analysis of MAS and NMAS was also implemented. There were 67,175, 30,617, and 16,366 cows with records for TSCC, MAS, and NMAS in lactations 1, 2, and 3, respectively. The frequency of MAS was 14, 20, and 25% in lactations 1, 2, and 3 respectively. The model for TSCC included herd-test-day, age at calving and month of calving, fixed lactation curves nested with calving year groups, and random regressions with Legendre polynomials of order 2 for animal and permanent environmental effects. The model for MAS and NMAS included fixed herd-year-season, age at calving and month of calving, and random animal and permanent environmental effects. All analyses were carried out using Gibbs sampling. Estimates of mean daily heritability averaged over a 305-d lactation were 0.11, 0.14, and 0.15 for TSCC for lactations 1, 2, and 3, respectively. Corresponding heritability estimates for MAS were 0.05, 0.07, and 0.09. The heritabilities for NMAS were similar at 0.06, 0.07, and 0.12, respectively, for lactations 1, 2, and 3. The genetic correlations between lactations 1 and 2, 1 and 3, and 2 and 3 were 0.75, 0.64, and 0.92 for computed 305-d lactation TSCC; 0.55, 0.48, and 0.89 for MAS; and 0.62, 0.42, and 0.85 for NMAS, respectively. The genetic correlations between MAS and TSCC were positive and generally moderate to high. The genetic correlations between computed 305-d lactation TSCC and MAS were 0.53, 0.61, and 0.68 in lactations 1, 2, and 3, respectively. Similar corresponding genetic correlations were obtained between computed 305-d lactation TSCC and NMAS in the respective parities. Mastitis as a binary trait and NMAS in the same lactation were very highly correlated and were genetically the same trait. It is intended that the new parameters will be used in setting up a national evaluation system for the joint analysis of TSCC and MAS.