辐射变性淀粉在纺织上浆中的应用

采用^60Co-γ射线对原淀粉辐射变性，制备辐射变性淀粉，改进上浆配方，对该变性淀粉浆料在上浆中的应用进行了探讨。结果表明：辐射变性淀粉用于纺织上浆，相对原化学变性淀粉可提高其机织效率5％～20％，同时使上浆成本下降10％～20％，替代或部分替代PVA浆料成为可能。     

氨基甲酸酯淀粉在粘胶低温上浆中的应用

探讨氨基甲酸酯淀粉在粘胶经纱低温上浆中应用的可行性。测试了温度对浆液粘度特性以及对粘胶纤维粘附性能的影响，评价了上浆温度与粘胶经纱的浆纱性能之间的内在联系。结果表明：氨基甲酸酯化变性能够使浆液在温度低至60℃时仍具有较好的粘附性能和一定的粘度稳定性；随着氨基甲酸酯淀粉取代度的提高，对粘胶纤维的粘附力增大；在低温上浆条件下，氨基甲酸酯变性有利于改善淀粉对粘胶经纱的上浆性能。当淀粉的取代度大于0．032时，这种淀粉浆料可以在60℃-80℃条件下用于粘胶经纱的上浆。     

TB-225型变性淀粉在高密织物上的应用

本文介绍TB-225型变性淀粉浆料的特性,用于棉、涤棉高密防羽布经纱上浆的实践经验,对变性淀粉粘度选择、混合浆料配比、调浆方法、浆料组分及上浆工艺等问题进行了较深入探讨。     

202改性玉米淀粉浆研制及其在涤绵织物上的应用

本文介绍了２０２改性淀粉的变性原理、上浆性能、调浆方法和使用效果。２０２改性淀粉浆是用目前国内优良的２０２淀粉改性剂，在煮浆过程中使淀粉改性制得的，它用于涤棉经纱上浆，技术上可行，经济效益十分显著。     

牛仔布的经纱上浆

综述了牛仔布经纱上浆的目的、对浆料性能的要求，以及牛仔布经纱上浆用浆料的发展历程。同时对影响牛仔布上浆工艺的因素、使用高浓低粘型变性淀粉上浆的效果及注意事项作了介绍。     

淀粉氨基甲酸酯化对毛纱低温上浆性能的影响

为提高变性淀粉浆料在毛纱上浆中的应用性能,制备了一系列具有不同取代度的氨基甲酸酯淀粉。研究温度变化对氨基甲酸酯变性淀粉浆液性能和羊毛纤维黏附性能的影响,探讨这种淀粉浆料在不同温度条件下对羊毛经纱的上浆性能。结果表明:氨基甲酸酯化变性能够使浆液在温度低至60℃条件下仍具有一定的黏度稳定性,这为低温上浆提供了条件;随着氨基甲酸酯淀粉取代度的提高,对羊毛纤维的黏附力增大;氨基甲酸酯变性有利于改善淀粉在低温条件下对羊毛经纱的上浆性能。     

LS—2氧化淀粉和宝丽美ES助剂在牛仔布上浆中的应用

牛仔布是粗号高密织物，经纱先染色后上浆，采用剑杆织机织造，速度快，经纱受的摩擦力较大。我公司牛仔布经纱原用IOO％的玉米淀粉上浆，浆后手感粗糙，落浆大，织造时经向断头多，影响了织机效率和牛仔布质量，而且布面易起球，织造车间粉尘污染严重。近年来，用广西明阳淀粉厂生产LS－2氧化变性木薯淀粉与玉米淀粉混合上浆，同时选用香港宝成化工有限公司开发研制的宝丽美ES（ProamineES）助剂，代替甘油和消沫剂。从使用情况看，效果良好，可降低成本，提高经济效益。一、LS－2氧化淀粉和ES助剂的特点1．LS－2氧化淀粉的上浆特点…     

变性淀粉浆料的现状及其发展

本文概述了变性淀粉浆料在经纱上浆应用中的发展过程；对常用变性淀粉浆料的制取机理，性能和浆纱品选择作了介绍，并提出了发展变性淀粉浆料看法。     

变性淀粉浆料的现状及其发展

概述了变性淀粉浆料在经纱上浆应用中的发展过程，对常用变性淀粉浆料的制取机理、性能和浆纱品种选择作了介绍，并提出了发展变性淀粉浆料的看法。     

ST-KT固体丙烯酸类浆料的应用

为了解ST-KT固体丙烯酸类浆料的性能,将ST-KT浆料用于细号高密品种,并在贝宁格浆纱机上进行了上浆实践.结果表明,ST-KT与变性淀粉等浆料混合使用,可大大减少PVA的用量,降低上浆成本,且织造时经纱断头显著减少.     

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