高质量原酒是生产浓香型低度白酒的关键

为保持低度白酒中足够的香气成分,选用香味物质含量高的高质量基酒尤为重要.要获取高质量的原酒应从工艺上加以解决.在浓香型低度白酒生产中,利用己酸菌发酵液生产高质量原酒便是一个有效的措施.此外,双轮底、多轮底发酵工艺是既简单又很有效地获取优质酒的办法.回窖发酵和翻沙窖也都可以提高原酒的质量.     

做低度白酒应掌握的几个环节

经过几十年的发展,低度白酒已成为中国白酒消费的主流产品.低度白酒生产应掌握好:高档基础酒生产的发酵与蒸馏,包括双轮底、多轮底发酵工艺,翻沙窖生产,优质已酸菌发酵液生产;酒的贮存与老熟;降度用水和除浊处理;勾兑、调味及其缔合.     

凤型酒不同发酵期的工艺探讨

一、引言在凤型大曲酒生产过程中，各生产环节都会影响酒的产率和质量。在市场经济的推动下白酒已形成低度化生产趋势，为适应市场需要，我厂调整了产品结构，加大了低度酒的生产。生产低度酒首先要生产长酵酒，延长曲酒的发酵期，提高成品酒各微量成份的含量。西凤酒采用...     

提高浓香型大曲酒质量和出酒率的技术措施

浓香型大曲酒主要是以高粱等淀粉物质为原料，采用大曲作为糖化、发酵剂，经固态发酵和蒸馏而成的一种饮料酒。提高浓香型大曲酒质量和出酒率的技术措施主要有：设计合理科学的窖池、窖形、窖容；配造、培养和应用成分及营养丰富的人工老窖泥；加强窖池的退化预防与养护，规范工艺操作、强化窖池管理、制备己酸茵液和营养液、做好窖池的日常养护，促进窖泥中有益微生物的生长繁殖，提高发酵质量、酒醅出酒率和酒质。（孙悟）     

白酒生产中黄水和酒尾的应用

黄水、酒糟和酒尾是固态发酵法生产浓香型大曲酒的副产物.黄水不仅含有丰富的醇、醛、酸和酯类物质,还含有丰富的有机酸、淀粉、还原糖、酵母自溶物等营养物质,含有大量经长期驯化的酿造微生物及生香的前体物质;酒尾也含有一些可利用的物质.可利用黄水和酒尾进行灌窖发酵、培养人工老窖、酯化反应、大曲发酵串蒸、生产调味酒等应用于浓香型大曲酒生产,提高大曲酒的质量.     

应用夹尼发酵技术提高浓香型大曲酒名酒率的研究

浓香型大曲酒生产中，名酒率的高低直接影响到企业的经济效益。多年来，人们采用各种各样的办法来提高浓香型大曲酒的名酒率。特别是六十年代以来，人工窖泥的推广应用，使名酒率的提高取得了突破性的进展。之后，又广泛采用了双轮底发酵、复式发酵、中途回沙、生香酵母、酯化液等特殊工艺来提高原酒质量和名酒率，增中调味酒的数量。     

浓香型低度大曲酒的研制

低度白酒是当前的发展趋向,为解决低度白酒澄清、香和味三大难关,采用改进工艺、提高酒基品质,吸附处理和勾兑调味等三项措施,研制出保持浓香型风格和香味的低度(38°)大曲酒,为开发低度曲酒作了探讨。     

合理进行窖形设计提高酒质和酒率

合理进行窖形设计提高酒质和酒率彭盼四川射洪沱牌实业股份有限公司（６２９２０９）关键词大曲酒，发酵，窖形设计，窖表面积，优质品率我国白酒酿造历史悠久，其发酵设备也因地域和所产香型而千差万别，清香型白酒传统的发酵设备是陶瓷缸；酱香型酒的发酵设备是碎石窖、...     

提高浓香型大曲酒质量的措施——“双轮底”回酒发酵

在原有酿酒工艺的基础上使用"双轮底"回酒发酵工艺。结果表明,在浓香型大曲酒生产中采用"双轮回酒"发酵生产工艺是可行的,可使入池和出池酒糟保持较高的淀粉含量,适宜的酸度,达到正常配醅;回酒发酵可增加酯化底物,为酯化创造条件,提高酒质,提高淀粉出酒率。     

提高泰山特曲质量的技术措施

利用“北斗”窖泥工艺提高窖泥质量；建立7m^3窖容的小发酵窖池，使发酵透彻，升温平稳，产酯稳定；低温入池缓慢发酵；原辅料清蒸排杂；量质摘酒，分级入库；使用热浆水；回酒发酵；重视品评勾兑调味工作等一系列技术措施。有力地保证了浓香型大曲酒泰山特曲质量的稳定提高。(丹妮)     

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.     

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     

INFOPRINT 2014 was Successfully Held in Dongguan

Sponsored by Printing and Printing Equipment Industries Association of China （PEIAC） and organized by Print China magazine, the Seventeenth Beijing International Printing Information Conference （INFOPRINT 2014） was successfully held on 11th Dec. 2014 at Dongguan Exhibition International Hotel.