偃松仁饮料乳化稳定性的研究

通过对偃松仁饮料稳定性的研究，获得最佳工艺参数和技术要点。实验结果表明，添加单甘酯0．15％、蔗糖酯0．10％和海藻酸钠0．3％，在均质温度70℃、压力25MPa下均质2次，稳定性较好。     

椰子汁饮料的稳定性研究

系统地研究了椰子汁饮料的生产工艺及影响其稳定性的主要因素，得到最佳的工艺条件：椰子肉和水的质量比为1：10，pH控制在6．5左右，加糖量为4．0％，均质条件是在70℃左右保持压力为20～25MPa，杀菌条件是121℃、20min，同时探讨了不同HLB值的混合乳化剂和增稠剂对椰子汁饮料稳定性的影响，结果表明：HLB值在11．27时乳化剂具有良好的效果，Tween60的效果优于其他乳化剂，黄原胶的效果比海藻酸钠要好。通过b9（3^4)正交试验得出稳定剂配方为；0．02％单甘酯、0．08％Span20、0．10％Tween60，0．02％黄原胶、0．02％海藻酸钠。     

豆乳饮料的稳定性及控制技术研究

对影响豆乳饮料稳定性的因素及其控制措施进行了研究。试验结果表明，复合乳化稳定剂的配方为：单甘酯0．15％，蔗糖酯0．10％，卡拉胶0．05％，CMC 0．05％；影响豆乳饮料风味的因素大小为：奶粉〉蔗糖〉香精，最佳的风殊配方为：奶粉2％，草莓香精2mL，蔗糖10％。     

南瓜籽饮料的研制

以甘肃庆阳产的南瓜籽为试材，研究了制作南瓜籽饮料的主要工艺参数。结果表明：在籽水比为1：20时，用0．2％的羧甲基纤维素、0．10％的黄原胶、0．10％的庶糖脂肪酸酯、0．10％的单甘酯组合成复合稳定剂．在30～40MPa的均质压力、60℃下均质．同时添加7％的白砂糖和0．04％。的乙基麦芽酚改善风味．250g的瓶装饮料使用10’-15’-10’／120℃的杀菌公式杀菌后．制得的南瓜籽饮料稳定性及风味最好。     

杀菌型乳酸菌乳饮料的研究

通过对杀菌型乳酸菌乳饮料的研究，确定了最佳工艺要点和稳定性的最佳配比，即羧甲基纤维素钠用量为0．6％，海藻酸丙二醇酯为0．1％，柠檬酸钠为0．04％（均为质量分数）。     

代乳饮料稳定性研究

用植脂末替代调配酸乳饮料中的奶粉原料，并添加了适量的乳酸钙，制作代乳饮料。对影响饮料稳定性的因素进行了研究，通过正交试验确定稳定剂的最佳配比。结果表明添加白砂糖10％、柠檬酸0．18％、乳酸0．10％、植脂末5．0％、乳酯钙0.20%、单甘酯0.12%、羧甲基纤维素钠（CMC）0.10%和黄原胶0．050％时产品稳定性好，代乳饮料口感和奶粉调配的乳饮料相差不大。     

充汽型乳酒饮料--奶啤的研究

通过对奶啤工艺要点和稳定性的研究，确定了最佳的奶啤生产工艺，并对其进行了试验，找出了合理的稳定剂配比（CMC—Na用量为0．2％，果胶用量为0．2％，蔗糖酯用量为0．1％，多聚磷酸盐用量为0．03％）。     

不同乳化剂对大豆蛋白质凝胶特性的影响及乳化条件优化

研究了不同乳化剂对大豆蛋白质凝胶特性的影响，选出合适的乳化剂，并在单因素试验基础上进行正交试验，以乳化稳定性为指标对乳化条件进行了优化。最终确定乳化剂的最佳添加量分别为：单甘酯0．22％，磷脂0．27％，蔗糖脂肪酸酯(HLB15)0．30％。     

花生蛋白奶茶的开发研制

以红茶、花生蛋白和脱脂奶粉等为主要原料，通过对茶汤的浸提试验、花生蛋白的酶解试验、产品配方调制试验以及稳定剂的配比试验研究，最终确定了花生蛋白奶茶的最佳产品配方：红茶茶汤50％，花生蛋白酶解液20％，蔗糖9％，脱脂奶粉1．5％，蔗糖脂肪酸酯0．15％，分子蒸馏单甘酯0．05％，卡拉胶0．025％，柠檬酸钠0．03％，焦磷酸钠0．05％。     

甜玉米乳饮料加工工艺的研究

本文研究了不同均质条件以及不同配比乳化剂和稳定剂对玉米乳稳定性的影响。结果表明，采用二次均质：一次压力15MPa、二次压力35MPa、均质温度为70℃时产品的稳定性最好。复合乳化剂用量为0．15％（复合乳化剂中单甘酯占30％，蔗糖酯SE-13占70％），SS-33复合稳定剂用量为0．25时，玉米乳饮料稳定效果最好，放置半年未见分层析水现象。并制定了玉米乳新产品质量指标。     

Reliable identification of grapevine rootstock varieties using RAPD PCR on woody samples

Since grapevine ( Vitis spp .) rootstock material is being traded increasingly as disbudded woody material a lack of distinctive morphological features on such material necessitates an alternative and reliable means of identification. Methods described here were developed for rapid and efficient extraction of DNA from woody samples rich in phenolic compounds and polysaccharides, and for subsequent identification of varieties by RAPD PCR. Using these methods, and with the application of only one selected RAPD primer, we were able to differentiate sixteen rootstock varieties, including the seven varieties most commonly used in Germany. Problems commonly encountered with reproducibility of RAPD patterns were avoided by choosing primers with a dinucleotide sequence and a high G/C content that allowed a rather high annealing temperature of 45°C. Methods described here should also be useful for other horticultural crops, especially those with woody tissues rich in phenolic compounds and polysaccharides.     

An internet compendium of analytical methods and spectroscopic information for monomers and additives used in food packaging plastics

An internet website (http://cpf.jrc.it/smt/) has been produced as a means of dissemination of methods of analysis and supporting spectroscopic information on monomers and additives used for food contact materials (principally packaging). The site which is aimed primarily at assisting food control laboratories in the European Union contains analytical information on monomers, starting substances and additives used in the manufacture of plastics materials. A searchable index is provided giving PM and CAS numbers for each of 255 substances. For each substance a data sheet gives regulatory information, chemical structures, physico-chemical information and background information on the use of the substance in particular plastics, and the food packaging applications. For monomers and starting substances (155 compounds) the infra-red and mass spectra are provided, and for additives (100 compounds); additionally proton NMR are available for about 50% of the entries. Where analytical methods have been developed for determining these substances as residual amounts in plastics or as trace amounts in food simulants these methods are also on the website. All information is provided in portable document file (PDF) format which means that high quality copies can be readily printed, using freely available Adobe Acrobat Reader software. The website will in future be maintained and up-dated by the European Commission's Joint Research Centre (JRC) as new substances are authorized for use by the European Commission (DG-ENTR formerly DGIII). Where analytical laboratories (food control or other) require reference substances these can be obtained free-ofcharge from a reference collection housed at the JRC and maintained in conjunction with this website compendium.     

Aroma characterization of various apricot varieties using headspace–solid phase microextraction combined with gas chromatography–mass spectrometry and gas chromatography–olfactometry

The characterization of the aromatic profile of several apricot cultivars with molecular tracers in order to obtain objective data concerning the aromatic quality of this fruit was undertaken using headspace–solid phase microextraction (HS–SPME). Six apricot cultivars were selected according to their organoleptic characteristics: Iranien, Orangered, Goldrich, Hargrand, Rouge du Roussillon and A4025. The aromatic intensity of these varieties measured by HS–SPME–Olfactometry were defined and classified according to the presence and the intensity of grassy, fruity and apricot like notes. In the six varieties, 23 common volatile compounds were identified by HS–SPME–GC–MS. Finally, 10 compounds, ethyl acetate, hexyl acetate, limonene, β-cyclocitral, γ-decalactone, 6-methyl-5-hepten-2-one, linalool, β-ionone, menthone and (E)-hexen-2-al were recognized by HS–SPME–GC–O as responsible of the aromatic notes involved in apricot aroma and considered as molecular tracers of apricot aromatic quality which could be utilized to discriminate apricot varieties.     

Tests of potential functional barriers for laminated multilayer food packages. Part I: Low molecular weight permeants

The advent of the functional barrier concept in food packaging has brought with it a requirement for fast tests of permeation through potential barrier materials. In such tests it would be convenient for both foodstuffs and materials below the functional barrier (sub-barrier materials) to be represented by standard simulants. By means of inverse gas chromatography, liquid paraffin spiked with appropriate permeants was considered as a potential simulant of sub-barrier materials based on polypropylene (PP) or similar polyolefins. Experiments were performed to characterize the kinetics of the permeation of low molecular weight model permeants (octene, toluene and isopropanol) from liquid paraffin, through a surrogate potential functional barrier (25 μm-thick oriented PP) into the food simulants olive oil and 3% (w/v) acetic acid. These permeation results were interpreted in terms of three permeation kinetic models regarding the solubility of a particular model permeant in the post-barrier medium (i.e. the food simulant). The results obtained justify the development and evaluation of liquid sub-barrier simulants that would allow flexible yet rigorous testing of new laminated multilayer packaging materials.     

Analysis of benzo[a]pyrene in spiked fatty foods by second derivative synchronous spectrofluorimetry after microwave-assisted treatment of samples

A simple, rapid and inexpensive method has been developed for the determination of benzo[a     

The development of reference materials for paralytic shellfish poisoning toxins in lyophilized mussel. II: Certification study

This paper describes the second part of a project undertaken to develop certified mussel reference materials for paralytic shellfish poisoning toxins. In the first part two interlaboratory studies were undertaken to investigate the performance of the analytical methodology for several PSP toxins, in particular saxitoxin and decarbamoyl-saxitoxin in lyophilized mussels, and to set criteria for the acceptance of results to be applied during the certification exercise. Fifteen laboratories participated in this certification study and were asked to measure saxitoxin and decarbamoyl-saxitoxin in rehydrated lyophilized mussel material and in a saxitoxin-enriched mussel material. The participants were allowed to use a method of their choice but with an extraction procedure to be strictly followed. The study included extra experiments to verify the detection limits for both saxitoxin and decarbamoyl-saxitoxin. Most participants (13 of 15) were able to meet all the criteria set for the certification study. Results for saxitoxin.2HCl yielded a certified mass fraction of <0.07 mg/kg in the rehydrated lyophilized mussels. Results obtained for decarbamoyl-saxitoxin.2HCl yielded a certified mass fraction of 1.59+/-0.20 mg/kg. The results for saxitoxin.2HCl in enriched blank mussel yielded a certified mass fraction of 0.48 +/- 0.06 mg/kg. These certified reference materials for paralytic shellfish poisoning toxins in lyophilized mussel material are the first available for laboratories to test their method for accuracy and performance.     

Announcing a new international peer-reviewed journal:Food Science and Human Wellness now accepting manuscript submission in English

<正>We are pleased to announce the launch of a new international peer-reviewed journal-Food Science and Human Wellness,ISSN 2213-4530,which is an open access journal,produced and hosted by Elsevier B.V.on behalf of Beijing Academy of Food Sciences.Food Science and Human Wellness is an international peer-reviewed English journal that provides a forum for the dissemination of the     

Chinese CTP Market

According to Printing and Printing Equipment Industries Association of China（PEIAC）＇s statistics to the plate manufucturer in China, in 2013, the actual offset plate production has reached 346 million square meters in China. Among them, the CTP production volume was 245 million square meters, up by 11% than that of last year; the total sales of the CTP plate was 239 million square meters, up by 13%.     

Preparatory Work of Print China 2015 is Going Smoothly

正Held at Guangdong Modern International Exhibition Center,Print China 2015 will cover 7exhibition halls,besides the original Hall No.3,4,5,6,7,the newly built F zone of Hall 3 will be used too.The total area will be140,000 square meters.Hall 3:Offset and large printing equipment,package printing equipment,post press