延年素纤维混纺织物的开发

利用新研制出的享有“内农小空调和绿色维他命”美称的延年素功能性纤维与棉、毛混纺交织生产出亚纳米功能呢。该产品是一种集美观、舒适及保健于一体的新型毛精纺面料。文章介绍了延年素纤维的理化特性，并给出了延年素纤维混纺织物的设计方案及纺纱、织造、染整等工序的工艺，为类似功能性纺织品的开发提供了参考。     

延年素纤维的性能特点及产品开发

介绍了延年素纤维的性能和特点，指出该纤维是一种新型功能性纤维，它能产生负离子，并释放远红外线，能消除异味、臭气，抑菌杀菌，与其它纤维相比较，具有功能性和其它独特的性能，产品开发的前景十分广阔。     

延年素纤维混纺织物的开发与研制

前言。开发功能性的毛织物已成为当今各毛纺织企业的发展趋势，为此我们研制开发了高级亚纳米功能呢。该产品是利用享有“内衣小空调和绿色维他命”美称的延年素功能性纤维与棉、毛混纺或交织而成，是一种集美观、舒适及保健于一体的新型毛精纺面料，是制作衬衫、时装、西服套装的理想面料。     

新型纤维在开发应用中存在的问题

文章指出了环保性、功能性等新型纤维在应用开发过程中存在的一些问题,包括新型纤维的分类命名、鉴别问题、功能性纤维开发及评价、新型纤维的使用及其产业化等问题,同时对每个问题做了深入地分析探讨,并提出一些解决方案,对新型纤维的发展与应用有一定的促进作用.     

高科技纤维在医疗领域的应用

生命技术(生物医药)在我国"十二五"重点发展的七大战略性新兴产业中列为首位,体现了"以人为本"的精神.高科技纤维(即特种纤维)中的功能纤维、智能纤维和某些高性能纤维,已广泛应用于医学的各个领域,其中医药级的碳纤维及其复合材料、中空纤维分离膜、纳米纤维及其非织造布、碳纳米管、各种富有个性的功能性纤维以及新近出现的一系列传感探测用智能纤维,都是医疗领域的重要品种.     

延年素纤维与棉混纺纱府绸产品的开发

本文介绍延年素纤维的性能特点，结合生产实践，通过工艺试验，分析纺纱和织造各工序的因素对织物的影响，探讨提高织物品质的有效技术措施。     

医卫保健用纤维与针织物

文中介绍了海藻酸纤维、骨胶原纤维、甲壳素纤维以及Lactron纤维等医疗用功能性纤维与针织物,抗菌防臭等卫生用功能性纤维与针织物,远红外纤维、防紫外线纤维、含维生素纤维、麦饭石功能纤维及负离子纤维等保健用功能性纤维与针织物.大力开发各种医卫保健用纤维与针织物,对推动其在医卫保健领域的应用和针织产业的发展,具有十分重要的经济和社会意义.     

延年素混纺纱线的研制

本文通过对延年素纤维品质特性的分析,以14tex精棉/延年素65/35混纺纱为例,按工艺流程介绍了生产过程中的工艺技术措施。     

纤维的潮流——健康纤维

在功能性纤维开发方面,健康渐渐地成了关键词.功能性纤维的开发是赋予合成纤维吸水、吸     

微胶囊技术在功能性纤维素纤维开发中的应用

文中介绍微胶囊的制备技术,包括物理法、化学法、物理化学法,提出功能性再生纤维素纤维对微胶囊壁材、芯材和粒径的技术要求。简要介绍采用微胶囊技术生产的相变储能纤维、温感及光感变色纤维、中药功能性纤维和阻燃功能纤维等几种功能性再生纤维素纤维。指出微胶囊技术的应用可赋予再生纤维素更多的功能性,为功能性纤维素纤维的开发提供参考。     

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