名厨领鲜

港顺蒸鱼豉油特点:蒸鱼豉油精选上等大豆和优质小麦,采用先进的生产工艺,经高盐稀态发酵精酿而成,豉香浓郁,味道鲜甜,色泽清新自然,鲜红透亮,融豉香与醇香于一体,口感芳香风味独特,属高档蒸鱼豉油。     

速冻调理专用YE产品的开发和应用研究

酵母抽提物(Yeast Extract,YE)是以可食用的酵母为主要原料,采用生物酶解等技术制成的一类天然风味物质,其富含大量的呈味氨基酸、肽类、核苷酸等酵母细胞中的可溶性成分,具有鲜味丰富,口感醇厚,天然营养的特点.速冻调理产品是肉制品中重要的产品类型,其采用速冻工艺,并在冻结状态下(产品中心温度在-18℃以下)贮存、运输和销售,产品经解冻后香气、厚味等是评价其品质的重要指标之一.本文通过对速冻调理专用型YE进行了开发,并对其在调理产品中的应用进行了研究,结果表明:速冻调理专用型YE能延长香气的滞留时间,增加产品的厚实口感,对速冻调理产品的整体风味的提升具有较好的协助作用.     

KOKUMI型酵母抽提物在黄豆酱中的品质提升研究

通过应用对比实验、感官品评的方法,对KOKUMI系列的酵母抽提物及其在黄豆酱中的应用进行分析,对比不同KOKUMI型酵母抽提物(YE)对黄豆酱风味提升的作用与各自展现的特点。通过在黄豆酱中添加YE01#(属KOKUMI系列)、YE02#(属KOKUMI系列)与空白对照样品进行对比分析,添加了YE01#酵母抽提物的样品展现出鲜味强度高、风味醇厚感强、口感协调性好的特点;添加了YE02#酵母抽提物的样品展现出酱香风味浓和提升醇厚味、辅助提升鲜味、口感协调性好的特点;空白对照样品的出酱香、醇厚味与口感协调性相比前两者表现较弱;添加了KOKUMI型酵母抽提物的黄豆酱展现出酱香、醇厚味与口感协调性的风味特点。     

浓厚味酵母抽提物产品分析及其在鸡精复合调味料中的应用研究

浓厚味酵母抽提物(YE)产品相比普通酵母抽提物含有更多的呈味多肽成分,具有浓厚、饱满和协调的特征风味,能增加产品浓厚口感,赋予产品更协调、美好的风味。该研究通过仪器分析、应用对比试验、感官品评等方法,分析了浓厚味YE的呈味成分,并研究了浓厚味YE在鸡精复合调味品中的应用。结果表明:浓厚味YE呈游离状态的氨基酸只有10.93%,分子量180～1000Da的小分子肽类占比大于70%。通过在鸡精中添加浓厚味YE与对照样品进行对此分析,添加了浓厚味YE的鸡精样品鲜味柔和协调,延续性好,同时能提升产品的香气,增强肉感和浓厚感,综合口感得到提升,同时产品具有较好的抗吸潮效果。     

鲜荔北极贝

粤菜博采众长，选料广博，善于变化，注重清鲜，爽滑，脆嫩的风味特点，更以烹制海鲜见长，口味清纯，注意保持主料原有的鲜味，讲究清而不淡，鲜而不俗，脆嫩不生，油而不腻。烹调海鲜的技艺多样善变，调味料奇异精细，如蒸鱼豉油等，为粤菜海鲜的独特风味起了举足轻重的作用。     

酵母抽提物鲜味(umami)及浓厚味(kokumi)滋味活性的评价与研究

酵母抽提物(YE)是一种极佳的风味增强食品,具有极强的鲜味(umami)增强和浓厚味(kokumi)效果。对三种酵母抽提物(高纯YE,高I+G YE,普通YE)的umami及kokumi滋味进行了评价和描述。通过超滤、凝胶层析对YE滋味组分进行了分离,初步得出分子质量处于200~1 000u的肽类,本身具有苦味及强烈刺舌滋味,对MSG-NaCl、I+G+NaCl、鸡汤-NaCl模型溶液具有増鲜,增加复杂口感及持续的满口感的kokumi效果。随后对三种YE的粗分质子量分布、肽分布、核苷酸含量、GSH含量进行了测定。结果得出,YE中1 000u分子量寡肽含量较高(约70%),为其主要滋味物质,相对而言,YE中呈味核苷酸含量较低(3.530mg/g),而不能与其中的kukumi活性物质起到协同效果。通过YE对MSG-NaCl、I+G+NaCl模型溶液的反馈感官鉴评实验,得出YE浓度分别达到0.25g/L、0.05g/L时开始体现出増鲜效果,而在两种模型溶液中YE分别达到2.5g/L,5g/L浓度时达到最大増鲜效果,超过这一浓度时,溶液开始呈现一定的苦味,鲜味也不再增强。此外,对于I+G+NaCl模型溶液,YE对其鲜味提升更为明显,增鲜阈值也较低。     

蒸鱼豉油双城记 联袂演绎美妙味道!

李锦记蒸鱼豉油李锦记味蚝鲜李锦记蒸鱼豉油,精选上等黄豆酿造,调出鲜、咸、甜的黄金配比味道,上色饱满润泽、滋味悠长温和,解决上品菜肴复杂的调色、调味过程。李锦记味蚝鲜复合味蚝油汲取天然蚝汁精华和豉香融合,层次丰富、回口鲜甜。二者联袂使用能提升中式炒菜的档次和风味,烹饪出更多美妙味道,堪称珠联璧合。     

创新菜式

越式瘦身鲩主料:潭河水库山泉瘦身鲩辅料:姜丝、葱丝、蒸鱼豉油制作方法:将包装鲩鱼拆包装无需清洗直接蒸熟,放入姜葱丝,淋热油,放少许蒸鱼豉油(注意量一定要少、因鱼已配好味避免过咸)即可。菜式特点:口感独特、鱼肉鲜嫩爽口,无任何腥味,口感可与鲜鱼媲美原料特点:鲩鱼经脱脂加工处理健康卫生,口感独特,加工方便,出品快。菜品成本:23元建议售价:58元     

清蒸鲈鱼

正用料:鲈鱼1条,生姜、香葱、蒸鱼豉油、盐和食用油各适量。做法:1.鲈鱼两面竖切几刀,姜切片,葱切成段及丝,葱段和姜片放入鱼肚内,将鱼上锅蒸10分钟取出;2.鱼身上浇蒸鱼豉油,撒葱丝,浇上沸腾的油即可。     

热反应耐酸耐盐型酵母抽提物(PS04)在蒸鱼豉油中的应用

研究了珠海天香苑生物科技发展股份有限公司生产的热反应耐酸耐盐型酵母抽提物(PS04)在蒸鱼豉油中的应用,针对蒸鱼豉油的配方和工艺进行了研究。通过酱油分级感官评价的方法,结果表明:最佳配比是酱油原油55%、工艺水18.5%、白砂糖9.2%、味精7.2%、食用盐2.6%、I+G 0.15%、PS04 1.1%、黄酒6.25%。     

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