方便复合调味品“烧烤汁”的研制

对方便复合调味品“烧烤汁”的制作做了全面介绍和论述；就香辛料的提取方法及配料选择做了研究；采用浸煮法，温水浸泡４ｈ，煮沸３０ｍｉｎ多次浸提效果最佳。     

日本水产系天然调味品的制法及成分

介绍了日本水产系天然调味品，即：鲣鱼汁（或鲣鱼精）、螃蟹（扇贝、虾、蛤仔）精，海带汁、鱼酱（鱼露）和蚝油（酱）的制法。     

海带胡萝卜番茄复合汁的研制

本文研究了海带汁、胡萝卜汁、番茄汁的提取方法、复合汁的配方及主要营养组分。正交试验确定最适宜配方为海带汁35 %、胡萝卜汁25 %、番茄汁10 %、白糖7 % ;实验表明添加0 21 %复合稳定剂 ,复合汁的稳定性良好 ,并含有丰富的碘、钙、胡萝卜素和维生素C等营养物质 ,能有效地补充人体生长发育的需要。     

杏、南瓜、胡萝卜复合果蔬汁的制备

研究了由杏汁、南瓜汁和胡萝卜汁复配的复合果蔬汁的配方,以及增稠剂的选择与用量.通过三因素三水平正交试验并结合感官评定,确定了果蔬复合汁的最佳配方为:杏汁体积分数50%、南瓜汁体积分数40%、胡萝卜汁体积分数10%、蔗糖质量分数3%.实验表明:添加1.5 g/L耐酸性CMC-Na,复合汁的色泽诱人,风味独特,稳定性良好.     

超滤技术在味精末次母液生产复合调味品的研究

味精精制末次母液是一种含有高色素、高胶体物质的谷氨酸钠混合液,我们将其经活性炭吸附、过滤,再应用超滤膜系统进行过滤,去除味精母液中的色素、重金属、大分子有机物等物质,滤液用于鸡汁、鸡精、海鲜汁等复合调味品的生产。同时,通过大量的生产试验和验证证明末次母液使用的新工艺所生产的鸡汁、海鲜汁等复合调味品与使用味精生产的质量无差异,且产品安全可靠,工艺具有良好的稳定性和可操作性,值得在其他复合调味品中推广应用。     

冬瓜复合汁加工技术的研究

对冬瓜复合制汁加工工艺进行了研究 ,开发出冬瓜苹果复合汁、冬瓜香梨复合汁。它们具有独特的冬瓜清香 ,能消暑止渴 ,具有保健和营养之功效     

川式豉油汁

豉油汁是粤菜的一种复合调味汁，一般用作蒸鱼的淋汁，或是用作凉菜的味汁。近些年，随着各地菜系间的相互交流，川菜也借鉴了粤菜的一些调味方法，从而创出了具有川菜特点的豉油汁。这里，我就把适用于凉菜和热菜的两种豉油汁介绍给大家。     

西瓜番茄苦瓜复合汁饮料的研制

精取西反、番茄、苦瓜制取单汁,依据营养互补原则进行调配,确定了复合工艺并对配后的复合汁进行了稳定性实验,得到了一种风味,口感和稳定性俱佳的复合汗。     

西瓜红枣草莓复合汁的工艺研究

以西瓜为主要原料，以红枣和草莓为主要配料，采用正交试验方法选定了复合汁的合理配方，论述了影响复合汁稳定性的因素，对复合汁的稳定性进行了实验研究，确定了西瓜红枣草莓复合汁的加工工艺。     

如何用好沙茶酱

沙茶酱是一种复合型调味品，它具有大蒜、洋葱、花生的复合香味，虾米和生抽的复合鲜味，以及轻微的甜辣味，营养丰富，色泽淡褐，呈糊酱状。沙茶酱用在烹调中，可直接作蘸料，也可用来调制馅料，还可与其它调味料配合调制成冷菜味汁和热菜味汁，适宜于炒、爆、熘、焗、烧、焖、蒸、煨、涮、灼等烹调方法。不过，像炸、煎、烤等需要较高温度成菜的烹调方法就不适合使用沙茶酱了(调入馅料除外)。     

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.     

Chlorohydrins of bisphenol A diglycidyl ether (BADGE) and of bisphenol F diglycidyl ether (BFDGE) in canned foods and ready-to-drink coffees from the Japanese market

BADGE.2HCl and BFDGE.2HCl were determined in 28 samples of ready-to-drink canned coffee and 18 samples of canned vegetables (10 corn, 5 tomatoes and 3 others), all from the Japanese market. HPLC was used as the principal analytical method and GCMS for confirmation of relevant LC fractions. BADGE.2HCl was found to be present in one canned coffee and five samples of corn, BFDGE.2HCl in four samples of canned tomatoes and in one canned corn. No sample was found which exceeded the 1mg/kg limit of the EU for the BADGE chlorohydrins. However the highest concentration was found for the sum of BFDGE.2HCl and BFDGE.HCl.H₂O at a level of 1.5mg/kg. A Beilstein test confirmed that all cans containing foods contaminated with BADGE.2HCl or BFDGE.2HCl had at lest one part coated with a PVC organosol.     

European priorities for research to support legislation in the area of food contact materials and articles

A strong science base is required to underpin the planning and decision-making process involved in determining future European community legislation on materials and articles in contact with food. Significant progress has been made in the past 5 years in European funded work in this area, with many developments contributing to a much better understanding of the migration process, and better and simpler approaches to food control. In this paper this progress is reviewed against previously identified work-areas (identified in 1994) and conclusions are reached about future requirements for R&D to support legislation on food contact materials and articles over the next 5 or so years.     

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