浅谈浓香型白酒与芝麻香型白酒的融合

利用芝麻香型白酒的技术资源优势,深入研究和推广芝麻香型白酒与浓香型白酒的融合,为香型融合及白酒的多元化发展拓宽了思路。     

对芝麻香型白酒生产的认识

芝麻香型白酒兼具浓、清、酱香白酒风味特点与工艺特征,幽雅细腻.芝麻香型白酒工艺要点为"清蒸续来查、泥底砖窖、大麸结合、多微共酵、四高一多一长、精心勾调",美拉德反应作用明显.重视原料中的蛋白质的品种、数量、发酵环境及原料配比;加强支链淀粉作物中蛋白质对芝麻香型白酒组分形成的机理及贡献的研究;控制营养物质的过度消耗,保证蛋白质发酵和淀粉发酵;尽早在芝麻香型白酒健康因子方面的研究有所突破.     

芝麻香型——白酒专用曲

<正>芝麻香型白酒专用曲,是芝麻香白酒生产的灵魂!中国芝麻香白酒四大领军企业之一的泰山酒业集团,对酿造系统的菌群生态进行分析,揭示了芝麻香香气成分的生产机理,自主研发了芝麻香型白酒和酿造专用曲,并填补了国内芝麻香白酒专用曲生产的空白。芝麻香型白酒专用曲由科学、系统筛选的优良酵母、细菌和麸曲等专用菌种单独培养、科学搭配而成,具有适宜的糖化力、发酵力和液化力,更具有丰富的酶系和微生物,彻底解决芝麻香时隐时现的行业     

芝麻香型白酒酿酒微生物研究进展

芝麻香型白酒是我国传统白酒的创新香型之一,因其所具有的独特风味越来越受到消费者的喜爱,近年来对于芝麻香型白酒酿造过程中微生物的探索也成为白酒研究中的热点领域之一。该文系统综述了芝麻香型白酒酿酒微生物的多样性分析、产香味成分分析、酶活性研究以及酿酒微生物在芝麻香型白酒生产中应用的最新研究进展,并对芝麻香型白酒酿酒微生物的未来的研究与利用提出了思考与展望,为后续芝麻香型白酒酿酒微生物的相关研究提供必要的信息参考。     

芝麻香型——白酒专用曲

正芝麻香型白酒专用曲,是芝麻香白酒生产的灵魂!中国芝麻香白酒四大领军企业之一的泰山酒业集团,对酿造系统的菌群生态进行分析,揭示了芝麻香香气成分的生产机理,自主研发了芝麻香型白酒和酿造专用曲,并填补了国内芝麻香白酒专用曲生产的空白。     

江苏省芝麻香型技术研讨会在泰州召开

本刊讯：在中国白酒协会副会长、我国著名白酒专家沈怡方先生的提议和指导下,3月27日-28日江苏梅兰春酒业有限公司主办了＂江苏省芝麻香型技术研讨会＂,邀请全省七家芝麻香型白酒生产企业的技术专家和领导为江苏芝麻香型白酒生产质量的提升和发展共谋大计。     

美拉德反应产物对芝麻香典型风格形成的影响

论述了美拉德反应的机理及美拉德反应的影响因素,提出了芝麻香型白酒典型风格是由3-甲硫基丙醇等为特征成分的含硫化合物与美拉德反应产物的复合体;美拉德反应对芝麻香型典型风格的影响。讨论了美拉德反应对指导芝麻香型白酒生产与科研工作建议。     

再议芝麻香型白酒的研究

芝麻香型白酒融合了清香、浓香、酱香型白酒的特点,以其优雅的香气,独特的风格成为白酒行业的一个新的增长消费亮点。该文结合芝麻香型白酒的生产实践,阐述了芝麻香型白酒的生产工艺、工艺技术特点、香味成分特点和风味特征。     

绵柔型芝麻香白酒风味物质的探究

芝麻香型白酒的酿造工艺将现代生物技术与传统工艺相结合,在吸收了浓香型、清香型、酱香型白酒酿造精髓的基础上独创了新的酒体风格特点,该香型白酒香气幽雅、酒体丰满、风格独特。近年来,随着消费趋势的转变,绵柔型酒体受到市场的普遍青睐。以乾隆江南绵柔芝麻香型白酒为研究对象,探索了绵柔型芝麻香独特的风味物质体系,分析了其形成的工艺基础,构建了绵柔型芝麻香白酒的酿造理论。     

提高芝麻香型白酒质量的工艺措施探讨

在传统芝麻香酒生产工艺的基础上,通过采取①定期适时的更换封池泥;②高温流酒和原料蛋白质含量控制;③对高温堆积进行灵活的调整和控制;④添加啤酒酵母泥;⑤堆积发酵糟底部放置竹排＂等措施,提高芝麻香型白酒质量,促进芝麻香型白酒的繁荣和发展。     

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.     

Textural Properties of Cold-set Gels Induced from Heat-denatured Whey Protein Isolates

A 9% whey protein (WP) isolate solution at pH 7.0 was heat-denatured at 80°C for 30 min. Size-exclusion HPLC showed that native WP formed soluble aggregates after heat-treatment. Additions of CaCl2 (10–40 mM), NaCl (50–400 mM) or glucono-delta-lactone (GDL, 0.4–2.0%, w/v) or hydrolysis by a protease from Bacillus licheniformis caused gelation of the denatured solution at 45°C. Textural parameters, hardness, adhesiveness, and cohesiveness of the gels so formed changed markedly with concentration of added salts or pH by added GDL. Maximum gel hardness occurred at 200 mM NaCl or pH 4.7. Increasing CaCl2 concentration continuously increased gel hardness. Generally, GDL-induced gels were harder than salt-induced gels, and much harder than the protease-induced gel.     

Occurrence of bisphenol-F-diglycidyl ether (BFDGE) in fish canned in oil

The levels of bisphenol-F-diglycidyl ether (BFDGE) were quantified as part of a European survey on the migration of residues of epoxy resins into oil from canned fish. The contents of BFDGE in cans, lids and fish collected from all 15 Member States of the European Union and Switzerland were analysed in 382 samples. Cans and lids were separately extracted with acetonitrile. The extraction from fish was carried out with hexane followed by re-extraction with acetonitrile. The analysis was performed by reverse phase HPL C with fluorescence detection. BFDGE could be detected in 12% of the fish, 24% of the cans and 18% of the lids. Only 3% of the fish contained BFDGE in concentrations considerably above 1mg/kg. In addition to the presented data, a comparison was made with the levels of BADGE (bisphenol-A-diglycidyl ether)analysed in the same products in the context of a previous study.     

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.     

Contribution of European research to risk analysis

The European Commission's, Quality of Life Research Programme, Key Action 1—Health, Food & Nutrition is mission-oriented and aims, amongst other things, at providing a healthy, safe and high-quality food supply leading to reinforced consumer confidence in the safety of European food. Its objectives also include the enhancing of the competitiveness of the European food supply. Key Action 1 is currently supporting a number of different types of European collaborative projects in the area of risk analysis. The objectives of these projects range from the development and validation of prevention strategies including the reduction of consumers risks; development and validation of new modelling approaches; harmonization of risk assessment principles, methodologies, and terminology; standardization of methods and systems used for the safety evaluation of transgenic food; providing of tools for the evaluation of human viral contamination of shellfish and quality control; new methodologies for assessing the potential of unintended effects of genetically modified (genetically modified) foods; development of a risk assessment model for Cryptosporidium parvum related to the food and water industries; to the development of a communication platform for genetically modified organism, producers, retailers, regulatory authorities and consumer groups to improve safety assessment procedures, risk management strategies and risk communication; development and validation of new methods for safety testing of transgenic food; evaluation of the safety and efficacy of iron supplementation in pregnant women; evaluation of the potential cancer-preventing activity of pro- and pre-biotic ('synbiotic') combinations in human volunteers. An overview of these projects is presented here.