自己动手,丰衣足食

忽然之间,通胀了。超市里,米贵了,面贵了,油贵了,连卷纸都在涨。菜场里,青菜贵了,海鲜贵了,各种肉也贵了。一时之间,贵气袭来,席卷了我们的生活。我们的收入没变,但是能够换来的实物越来越少了。     

涨时代的机遇与挑战

让价格再飞一会 盘点2010白酒行业的关键词,“涨”字无疑是最热门的话题：方便面涨价了,鸡蛋涨价了,面粉涨价了,燃油涨价了,蔬菜涨价了,食用油涨价了,棉花涨价了,水电费涨价了……很多人不禁感慨：“除了工资,身边的一切都涨了!”     

对鲐鱼罐头生产工艺的改进

利用改进后的工艺生产出来的罐头。不仅提高了产品质量增加了鲐鱼罐头品种系列,也节约了原副材料,充分利用了鲐鱼本身油脂多的特点,降低了生产成本,提高了生产效益。     

中国黄酒的科研现状及发展

论述了中国黄酒近年的发展与行业整体科技水平的提升。酿造企业在设备上已,一泛实现了机械化与半机械化;工艺技术上在传统工艺的基础上应用了新工艺与新技术,提高了产品的质量安全水平;产品包装上出现了精美高雅的各式包装：产品品种上以新风格口感为导向,开发改变了单一的风格特征;在功能性研究上,除发现了γ-氨基丁酸外,还对黄酒中的功能性物质进行了深入的研究。     

大型纺织科学共享数据库的开发

针对目前纺织企业、科研机构及高等院校对纺织科学数据的大量需求,提出了建设基于网络的大型纺织科学共享数据库的方案并予以实施。详细分析了目前已有纺织科学数据平台所存在的问题,给出了共享数据库的建设方案及总体结构模块图。对数据库建设的重要问题数据来源给出了具体方法,阐述了数据库的分段方法及格式设定,并列出了数据库的具体内容。针对纺织特点对大型数据库的维护方法提出了建议。最后分析了该数据库建设的创新性,并对数据库的前景进行了展望。     

略谈梳棉机针布的维护制度

从清花车间的管理,梳棉自停装置的检查及针布表面清洁制度的建立等方面介绍了梳棉机针布维护方面的经验,通过维护制度的建立执行,使针布损伤率下降了5个百分点,减少了设备事故,降低了不正常物料的投入,稳定了产品质量,提高了经济效益.     

氯化钾三效蒸发工艺

氯化钾采用三效蒸发,充分利用了热能,改变了沿用多年的落后工艺、降低了生产成本,为氯化钾生产开辟了新思路;自动控制系统的引用大大降低了工人的劳动负荷,且提高了操作的精度,使氯化钾生产首次实现自动化;三效蒸发系统的成功运行不仅降低了生产成本还为下游产品提供了优质充足的原料。     

水解胶原蛋白及其表征的研究进展

本文简单介绍了胶原蛋白的结构和用途，总结了提取胶原蛋白的方法。归纳了胶原蛋白的结构表征方法，阐述了胶原蛋白分子量的测定方法，为胶原蛋白的应用提供了一定的依据。最后，本文还对胶原蛋白分子量的控制进行了展望。     

爱是天下最美的味道

吃饱穿暖，是人类生存最基本的需求。如今生活好了，吃穿都不愁了，但一种食物是否真正称得上是美食，那就因人而异了。所谓“饥了香，饱了臭”，在今天看来都算不上什么美食。但当年我们把这些在今天看来再平常不过的食物都吃出了美味，吃出了好的心情，吃出了智慧。     

浅谈喷气织机车间的空调设计与使用

介绍了喷气织机车间空调存在的缺陷和进行技术改造的方法,改造后提高了空调效率,减少了车间粉尘,从而满足了工艺参数的要求。文中提出了在技术改造中值得注意的几个问题。     

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.     

Detection of adulteration of locust bean gum with guar gum by capillary electrophoresis and polarized light microscopy

Capillary electrophoresis (CE) and polarized light microscopy (PLM) were utilized in the detection of the adulteration of locust bean gum with guar gum. For CE analyses, standards of locust bean and guar gums were extracted with 30% CH₃CN, removing the residual proteins from the gum matrix. A 8.75 mM NaH₂PO₄-20.6 mM Na₂B₄O₇ buffer, pH 9, was used to separate these proteins and to identify marker proteins that were present in the guar gum. These markers did not co-migrate with components in the extracts of mechanically processed locust bean gum, and are used as indicators of adulteration. Using PLM with toluidine blue and iodine staining techniques, unadulterated locust bean gum samples were distinguished from mixed samples through the differential staining of components in locust bean versus guar and tara gums. These experiments in the use of CE and PLM provide orthogonal and complementary methods for the verification of 'true' positives and the elimination of 'false' positives.     

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%.