生态型活性染料净洗剂的研制及其应用

对甜菜碱型两性表面活性剂BS-12在活性染料净洗中的性能进行了初步研究．并在此基础上．用此类表面活性剂与非离子表面活性剂复配．添加无机盐、无机凝胶后的净洗性能进行了进一步的研究。结果表明BS-12与JFC复配后，净洗效果提高明显，无机盐硅酸钠以及无机凝胶SMP、SMF的加入，净洗后残液的吸光度增加明显。净洗后织物的水洗牢度能够达到4-5级甚至5级，而且织物的色光基本不发生变化。     

绿色表面活性剂BS-12在活性染料净洗中的性能研究

对甜菜碱型两性表面活性剂BS-12在活性染料净洗中的性能进行了初步探索，对此表面活性剂分别与非离子表面活性剂复配并添加无机盐、无机凝胶后的净洗性能作了进一步的研究．结果表明：BS-12与JFC复配后，净洗效果提高明显．加入无机盐硅酸钠以及无机凝胶SMP或SMF可使净洗后残液的吸光度明显增加，水洗牢度达到4～5级甚至5级，而且织物的色光基本不变．     

甜菜碱型表面活性剂复配皂洗剂性能研究

研究了十二烷基二甲基甜菜碱（BS—12）和羟磺基甜菜碱（LHs）两种两性表面活性剂分别与不同类型的非离子表面活性剂进行复配后的净洗性能．并对复配体系添加硅酸钠的净洗性能进行进一步的研究。结果表明，BS—12复配体系的净洗效果优于LHS复配体系，其中以BS—12与非离子表面活性剂以4：1比例复配后效果达到最好。在两种表面活性剂复配体系中添加一定量的硅酸钠，复配体系的净洗效果也有不同程度的提高。     

活性染料皂煮剂HY应用初探

将特殊水溶性高分子与其他非离子、阴离子表面活性剂复配，得到活性染料皂煮剂HY，通过研究HY净洗能力和防沾色能力探讨了其用于活性染料染色后皂煮的性能。结果表明．HY具有较强的洗除浮色的能力和优异的防沾色能力，可将织物的摩擦牢度提高0．5～1．5级，从而满足客户对色牢度的要求，     

还原净洗剂ST233的制备及应用

用自主制备的高分子聚羧酸共聚物、螯合分散稳定剂和烷基糖苷(简称APG)、还原促进剂、表面活性剂等5种净洗剂组分进行复配,研究不同复配体系对一浴染色涤棉织物净洗效果的影响,并以净洗浴中染料对棉、涤的沾色牢度色差值,净洗后织物的摩擦色牢度等作为评价指标,通过单因素试验确定还原净洗剂ST233复配体系的优化工艺参数。还原净洗剂ST233各组分按质量百分比计为:高分子聚羧酸共聚物25%、螯合分散稳定剂5.6%、APG 40%、还原促进剂1.5%、表面活性剂AEO-7 2.5%、去离子水25.4%;净洗浴工艺条件为2g/L的NaOH溶液,净洗温度90℃,净洗时间5min,在该条件下对涤棉织物净洗处理,织物各项色牢度得到显著提高,且对涤、棉贴衬的沾色少。     

活性染料皂煮净洗剂L-HY应用性能研究

以特殊水溶性高分子表面活性剂与阴离子、非离子表面活性剂复配,得到活性染料皂煮净洗剂L-HY。探讨了其用于活性染料皂煮中的净洗和防沾色性能。结果表明,净洗剂L-HY具有较强的洗除浮色的能力和优异的防沾色能力,可将活性染料染色后织物的摩擦牢度提高0.5～1.5级,从而满足客户对色牢度的要求。     

磷酸酯类表面活性剂在煮练助剂中的增效作用

磷酸酯类表面活性剂在高温、强碱作用下具有很好的润湿渗透作用，同时与其它阴、非离子表面活性剂有很好的协同作用。将磷酸酯与其它表面活性剂复配能大大增强煮练液的润湿、乳化、净洗作用。煮练后织物半成品毛效、白度均较好，而且对去除亚麻中的木质素有辅助作用。     

减轻后水洗中的靛蓝再沾色

本文就后水洗步骤从棉织物上去除物理吸附的靛蓝以及减轻靛蓝以及减轻靛蓝对织物回染（“粘色”）的可能性作了研究。试验并比较了各种不同的化学药品和纺织助剂的作用。研究结果表明，在研究的范围内去沾染效果与表面活性剂的化学结构无关，但在乙氧基化程度和净洗力之间存在着近乎直线的关系。应用复配的常规净洗剂可以获得最好的结果。     

棉、麻及人丝织物的酶洗工艺研究

以纤维素酶对棉，麻及人丝织物处理的酶洗工艺进行研究，探讨了各种表面活性剂及染料对酶洗效果的影响，并对酶洗织物的性能进行了测试。     

复配表面活性剂的表面特性与分散染料在细旦涤纶织物上的匀染性

研究了复配表面活性剂的表面特性与分散染料在细旦涤纶织物上匀染性的关系。研究表明：非离子表面活性剂中添加中等磺化度的阴离子表面活性剂所组成的复配物比单一的非离子表面活性剂能明显地改善分散染料在细旦涤纶织物上的匀染性。复配物与分散染料的ＨＬＢ值应尽量相接近，使用时浓度应略大于复配物的ｃｍｃ，则对匀染效果的改善较为明显。电解质将使匀染性变差，必须将金属离子加以除去。而复配物的浊点、高温分散性对匀染性无明显的影响。但对不同结构染料匀染性的影响是不同的，应加以合理选择。这为高温分散匀染剂的选择提供一定的理论基础。     

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