番茄、胡萝卜乳酸菌发酵饮料的研制

开发研制新疆地产番茄、胡萝卜混合汁乳酸菌发酵饮料。方法：以优质番茄酱和胡萝卜浓缩汁为原料，用保加利亚乳杆菌和嗜热链球菌为菌种，采用四因素三水平正交实验，确定中间种子扩大液、发酵液及发酵饮料口感稳定性的最佳工艺配方。结果：用保加利亚乳杆菌和嗜热链球菌按1：1比例作为菌种；种子扩大液的最佳配方：番茄、胡萝卜混合汁配比3：7，2％葡萄糖，2％脱脂乳，3％接种量；发酵液最佳配方：番茄、胡萝卜混合汁配比3：7，发酵温度41℃，发酵时间24h，接种量3％；发酵饮料调配最佳配方；发酵原液中添加蔗糖5％，柠檬酸0．02％，耐酸羧甲基纤维素钠（CMC-Na）0．2％，黄原胶0．03％。     

软枣猕猴桃酒精发酵饮料的研制

以软枣猕猴桃和啤酒花为主要原料,经发酵研制低度酒精发酵饮料。主要研究了软枣猕猴桃酒精发酵饮料的配方和工艺。通过L9（3^4）正交试验确定了该饮料的最佳配方为：软枣汁15％、啤酒花0．8％、白砂糖12％、柠檬酸0．10％;最佳发酵工艺条件为：酵母菌接种量0．10％、发酵温度20℃、发酵时间12h。     

红枣乳酸发酵饮料的研制

以红枣为原料，经乳酸发酵制成发酵饮料。通过对产品的工艺条件进行试验，得出枣浆最佳发酵条件为：接种量5％，发酵温度42℃，培养时间6h，乳糖1％，蔗糖12％；稳定剂添加量为：琼脂0.15％，黄原胶0．09％，海藻酸钠0．06％，杀菌条件：温度85℃，时间10min，最终使饮料的pH值调到3．7。     

果肉型半发酵苹果饮品的研究

试验以苹果为原料，经复合酶发酵制成发酵饮料。该饮料产品口味独特，既有发酵酒精的酒香，又有苹果的特殊香气；产品外观为诱人的浅黄色或金黄色。通过对产品的工艺条件进行试验，得出苹果汁最佳发酵条件为：接种量0．7％（以苹果汁计，以下相同），发酵温度30℃，发酵时间1d，白砂糖40％，Vc0.15％；稳定剂添加量为：黄原胶0．06％。海藻酸钠0．03％，羧甲基纤维素钠0．06％；杀菌条件：温度85℃，时间30min。     

安琪超级酿酒干酵母在酒精浓醪发酵中的应用

采用安琪超级酿酒干酵母，以玉米、木薯为原料的酒精浓醪发酵，最佳工艺条件为：①液化条件：耐高温α-淀粉酶10～20μ／g，60～70℃润料30min，90～95℃液化90min；②糖化条件：糖化酶100～200u／g，无糖化；③pH：4．0～5．0；④发酵温度：30～35℃；⑤酵母接种量：实验室小试接种量为原料的0．2％，中试接种量0．05％～0．1％，大生产接种量在0．02％～0．05％。采用双酶法连续发酵工艺，要求原料粉碎细，料水比适当（1：2．3～2．5）。（小凡）     

灰树花乳饮料生产工艺的研究

将脱脂乳和灰树花为原料提取的菌汁相混合，经杀菌后接种双歧杆菌与普通乳酸菌发酵、再经调配后制成乳饮料，通过试验确定最佳工艺条件及配方：灰树花菌汁：脱脂牛乳=2：1（v／v），采用婴儿双歧杆菌为双歧发酵菌种，42℃发酵20h；混合发酵的最佳工艺条件为：普通乳酸菌添加量为3％，41℃混合发酵3h；添加海藻酸钠0．06‰、CMC0．08‰、果胶．05‰的复合稳定剂，蔗糖5％，混合发酵液40％，饮料的酸度（用柠檬酸调酸）为pH4．2，产品酸甜适中，具有灰树花独特的清香。     

高F值寡肽酸乳饮料的开发与功能评价研究

利用复合酶水解玉米蛋白粉制得的高F值寡肽（F值为21．7）进行酸乳饮料配方与功能特性研究。结果表明，饮料最佳工艺配方为：添加高F值寡肽3％，白砂糖8％，柠檬酸0．15％；试验组与对照组相比，高、中剂量组缺氧存活时间分别提高了48％（P〈0．01）和33％（P〈0．05）；游泳时间分别提高了64％（P〈0．01）和38％（P〈0．05），肝糖原含量分别为对照组的2．75倍（P〈0．001）和1.88倍（P〈0．01）；游泳前后小鼠血乳酸含量分别与对照组相比降低了63．5％（P〈0．01）和35．6％（P〈0．05），证明了玉米高F值寡肽酸乳饮料的抗缺氧和抗疲劳功能。     

枇杷果醋及其饮料的研制

以枇杷鲜果为原料，通过对比试验和正交试验，确定生产工艺和枇杷果醋饮料的原料优化配比。结果表明，酿造工艺条件为枇杷果汁糖度调整至14％，接入0．3％酒用活化酵母，酒精发酵温度28℃～32℃，酒精发酵时间约8d；枇杷酒液酒精度调整至7％，接入10％醋酸菌，醋酸发酵温度36℃～38℃，醋酸发酵时间约10d。枇杷果醋饮料调制的优化参数为酸度5．5％的枇杷果醋8．0％，枇杷果汁15％，蜂蜜7．0％，有机酸（柠檬酸：苹果酸=2：1）0．08％，在25MPa压力下均质处理。酿制的枇杷果醋具有食醋清香和枇杷果香，酸味柔和，风味独特：调制的枇杷果醋饮料澄清透明，酸甜爽口，枇杷果香浓郁。     

乳酸发酵型红枣饮料工艺的研究

研究了用红枣进行乳酸发酵，确定了发酵红枣饮料的最佳工艺条件为：预煮和蒸煮料水质量比1：5，预煮10min去苦，蒸煮10min；纯枣浆发酵条件的筛选：乳糖加入量为2％，蔗糖加入量10％，接种量为7％，培养温度41℃，pH值为3．70；稳定剂最佳配比为：黄原胶0．09％，海藻酸钠0.06％，琼脂0．15％；红枣乳酸饮料在压力为25～40MPa，温度为60～70℃下均质处理后，产品组织均匀，口感细腻柔和，稳定性良好。     

乳酸发酵鲜菇汁技术研究

以鲜菇汁为原料，经乳酸发酵而制成鲜菇汁发酵饮料，通过对接种量、发酵时间、乳粉量、糖酸比进行试验．从而确定最佳工艺参数为：接种量3％，乳粉量5％，发酵时间3．75h，蔗糖12％，柠檬酸0．04％。     

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