板栗花生辣酱的研制

以花生、板栗、辣椒为主要原料,研制板栗花生辣酱。在单因素试验基础上进行正交试验,通过感官评定,优化板栗花生辣酱的配方。结果表明,板栗花生辣酱的最佳配方为:鸡肉13 g,香菇10 g,酱油8 g,料酒6 g,姜末2 g,蒜末2 g,糖4 g,食盐2 g,辣椒14 g,板栗花生18 g,食用油51.5 g,以此配方制得的辣酱品质良好。     

秋葵牛肉辣酱加工工艺研究

以秋葵、辣椒、牛肉为原料,添加用甜面酱、花生、芝麻制作的调味酱,制作成秋葵牛肉辣酱。通过正交试验和感官评价确定调味酱和秋葵牛肉辣酱的最佳配方,秋葵牛肉辣酱的最佳配方为秋葵添加量20g,辣椒添加量40g,牛肉添加量60g,调味酱添加量30g,调味酱的最佳配方为甜面酱添加量60g,花生碎添加量25g,芝麻碎添加量15g。成品的各项指标经过检测,符合国家标准。     

绿茶皮冻工艺的研究

绿茶皮冻是以绿茶的浸提液与猪皮及其相关配料精制而成。通过单因素试验确定进行正交试验的因素和水平,用正交试验确定产品的最佳配方为:猪皮500g,绿茶叶25g,料液比1∶2.0,加热时间60min,盐20g,白酒5g,醋5g、姜块3g,葱结2g,白糖2g,味精0.5g。在生产皮冻过程中用绿茶的浸提液代替所需水后,其色泽、质地、风味及营养组分都得到改善。     

冲调型花生蛋白粉的研制

研究以花生粕为主要原料生产花生蛋白粉的技术。结果表明:冲调型花生蛋白粉最佳配方为:花生粕33g,白砂糖25g,麦芽糊精33g,全脂奶粉5%、糯米粉5%、甜蜜素0.02%、复合稳定剂为0.8%、香精适量、料水比为1∶1.5。     

奶香辣酱制作工艺研究

对奶香辣酱进行配方优化研究,在传统工艺制作基础之上,结合现代中餐标准化生产工艺,通过食品感官方法,利用单因素实验与正交实验,对其配方进行优化,通过实验分析,最终确定奶香辣酱的最佳配方:辣椒酱200g、白醋25g、芥末酱8g、蛋黄酱150g、原味炼乳170g、盐10g、法香末8g。由此配方制作出的奶香辣酱奶香十足、口感爽辣、香滑延绵。     

即食块菌软罐头的工艺研究

以新鲜印度块菌为原料,进行即食软罐头配方及杀菌工艺的研究。采用单因素和正交试验的方法对产品配方进行优化,通过感官评定确定块菌软罐头配方。研究结果表明:最佳高汤配方为盐添加量5g,糖添加量4g,料酒添加量25g,姜添加量4g;220g块菌最佳煎制配方为盐添加量6g,花椒添加量5g,辣酱添加量30g,柠檬汁添加量3g。采用121℃/10min灭菌后,制作出的即食块菌软罐头兼具块菌与肉的鲜美,配方合理,营养丰富。     

香菇虾酱的研制

以香菇和虾皮为主要原料生产香菇虾酱。通过单因素及正交试验的方法对香菇虾酱的生产配方进行研究。结果表明:该产品的最佳配方为香菇300g、虾米150g、干辣椒20g、白砂糖30g、辣椒油100m L、小茴香30g、花椒粉20g、甜面酱350g、白芝麻50g。生产出的香菇虾酱具有良好的风味和质量,具有广阔的市场发展前景。     

基于模糊数学评定与正交试验优化香菇银鱼仔辣酱的研制

为丰富辣酱的品类、提高香菇和银鱼仔的附加值,以香菇、银鱼仔、辣椒和豆瓣酱为主要原料,研制香菇银鱼仔辣酱。在单因素试验基础上,利用模糊数学评定结合正交试验设计优化香菇银鱼仔辣酱的配方。结果表明,香菇银鱼仔辣酱的最佳配方为香菇12%、银鱼仔12%、辣椒10%、豆瓣酱6%、花生油45%、花生1%、芝麻1%、白砂糖2%、味精2.2%、食盐5%、生姜1%、大蒜1%、洋葱1%、香辛料0.5%、呈味核苷酸二钠0.1%、食用香精0.2%,此优化配方制备的香菇银鱼仔辣酱色泽油光鲜亮,香辣浓郁,鲜辣咸甜可口,组织细腻,有饱满的香菇银鱼香气,感官评分为85.32±0.65分。该研究可为香菇银鱼仔辣酱的制备提供一定的理论依据。     

草菇鲜辣酱制作工艺的研究

为进一步开发和利用草菇原料,本实验研究草菇鲜辣酱的制作配方。主要以感官评分为指标,在单因素试验基础上采用正交试验优化具体制作配方。结果表明:花生芝麻酱含量10%、复合味精(含2%I+G)含量1%、红辣椒粉含量0.85%及复合型增稠剂含量0.4%,制得的鲜辣酱品质最优,产品呈棕褐色、口感好、风味佳、香气浓郁、鲜辣适宜、滋味独特,而且组织形态较为均一。     

基于模糊数学综合评价法研制鮰鱼辣椒酱配方的研究

以朝天椒、泡椒和鮰鱼肉为主要原料,基于模糊数学综合评价方法开发风味独特的鱼肉辣椒酱。结果表明:鮰鱼肉60g,朝天椒10g,泡椒40g,郫县豆瓣酱30g,黄豆辣酱30g,花生油120g,花生碎30g,洋葱20g,姜20g,蒜20g,白砂糖10g,香叶、八角和花椒各1g,食盐2g,老抽2mL,其成品色泽均匀而有光泽,粘稠适度,鲜美可口。     

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