磺化大豆磷脂的结构和性能研究(Ⅱ)--磺化大豆磷脂的加脂性能和在皮革中的应用

经磺化改性后的大豆磷脂 ,提高了在皮革加脂剂中的稳定性和加脂性     

气相法制备新型磺化类皮革加脂剂

浙江赞成科技有限公司与陕西科技大学合作申报了浙江省科技厅重点科技攻关项目《气相法制备新型磺化类皮革加脂剂的开发研究》(项目编号 :2 0 0 2Ｃ2 1 0 1 70 2 1 1 0 1 1 5 3 )。本项目研究的主要任务是采用三氧化硫气相膜式工艺开发新型磺化油脂产品 ,并用于磺化类高档皮革加脂剂的生产。目前 ,国外公司生产的高档皮革加脂材料大多属磺化类加脂剂。二十世纪八十年代国外就有采用ＳＯ3 气相膜式磺化工艺进行工业化生产加脂剂的报道。ＳＯ3 气相膜式磺化工艺是目前世界上最先进的磺化工艺 ,而将此工艺技术应用于生产磺化类皮革加脂剂的研究…     

蛋黄磷脂的开发与利用

本文叙述了用超临界ＣＯ＿２技术萃取的蛋黄磷脂在医学、营养、保健等方面的作用，并与化学法萃取的商品大豆磷脂进行了比较，认为蛋黄磷脂开发、应用前景广阔。     

大豆磷脂乳饮料的开发及疗效

阐述了大豆磷脂的疗效作用，进一步研究了大豆磷脂加工成乳饮料的系列问题，为大豆磷脂的应用，提供参考。     

药品大豆磷脂散的适应症研究

药品大豆磷脂散是国家食品药品监督管理局批准大豆磷脂类药品新剂型,是上海金伴药业有限公司沿袭上海油脂一厂四十余年研发大豆磷脂药品历史,自主研发申报新品种。大豆磷脂散主要功效成份为大豆磷脂,由于磷脂是人体细胞膜重要组成部分,广泛存在于人体各组织器官中,对人体功能产生重要影响。但作为药品,必须突出个性功能,经研究表明,大豆磷脂散适应症:可用于脂肪肝、肝炎、肝硬化、中毒性肝炎、动脉粥样硬化、及神经衰弱等。     

大豆磷脂在饲料工业中的应用

大豆在我国有广泛的种植，它含有丰富的生理活性物质，包括大豆蛋白，大豆低聚糖，大豆磷脂，大豆异黄酮，大豆皂甙等，本文主要介绍了大豆磷脂在家禽业，养猪业以及水产养殖业中的应用。     

蔗渣碱性亚硫酸钠法高得率化学浆的制浆特性

探讨了蔗渣碱性亚硫酸钠法高得率化学浆的蒸煮工艺条件；当Ｎａ２ＳＯ３用量为１８％，ＮａＯＨ用量为３％，１６０℃时保温６０分钟，其得率为６３．８７％，ＫＭｎＯ４值为９．７４，未漂浆白度为５２．６３％ＩＳＯ；还分析了蒸煮过程木素的磺化和溶出特点及测定了碳水化合物的糖类组分溶出情况。     

磺化大豆磷脂的结构和性能研究(Ⅰ)--磺化大豆磷脂的结构解析和理化性能

通过对磺化大豆磷脂SPS这种新型阴离子表面活性剂的化学和仪器分析 ,探明SPS中活性基团的种类、数量、部位及不同SO3 结合量对其表面张力、渗透力、乳化力等理化性能的影响 ,确定了SPS的结构与理化性能的关系。     

亚硫酸化锌油研制及应用

本文以湖北沙市盛产的梓油为主要原料，采用以焦亚硫酸钠为磺化剂，在催化剂、乳化剂存在下进行氧化、亚硫酸化得到棕色或桔黄色磺化梓油，其结果硫含量在９％￣１３％（以ＳＯ３计）。     

大豆磷脂的生理功能及其应用

大豆磷脂是精炼大豆油脱胶时的副产物。大豆磷脂以其独特的生理功能在医疗、保健药品中广泛使用。大豆磷脂具有乳化性、抗氧化、分散、膜保护、起冷、消泡等多种效用在食品中应用。     

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