中国专利文摘

专利申请号９９１１７４１０公开号１２５８７７８专利名称一种新型造纸施胶沉淀剂及其制造方法文摘本发明涉及的新型施胶沉淀剂由包括有铝、铝的氧化物、无机酸铝的盐类及它的化合物（Ａ）和碱金属盐及其化合物或氧化物（Ｂ）聚合,或再与含硅化合物（Ｃ）复聚合而成以下通式的聚合物：［Ａｌ２（ＯＨ）ｎ（ＳＯ４）３－ｎｘＨ２Ｏ］ｍ（１）式中：ｎ＝３－５ｍ＝１－１０或［Ａｌ２Ｓｉ（ＯＨ）ｎ（ＳＯ４）３－ｎｘＨ２Ｏ］ｍ·（２）式中：１≤ｎ≤５ｍ≤１０或［Ａｌ２（ＯＨ）ｎ（ＳＯ４）３－ｎｘＨ２Ｏ］ｍ·［Ａｌ２Ｓｉ（ＯＨ）ｎ…     

新型饲料添加剂——双乙酸钠

新型饲料添加剂——双乙酸钠浙江省饲料监察所（３１０００４）屈健１概述双乙酸钠（ＳｏｄｉｕｍＤｉａｃｅｔａｔｅ，简称ＳＤＡ），又名二醋酸一钠，商品上也称维他可乐波（Ｖｉｔａ－Ｃｒｏｐ），其结构式为ＣＨ３ＣＯＯＨ·ＣＨ３ＣＯＯＮａ·ＸＨ２Ｏ，是一种分子化...     

皮革文摘

皮革文摘ＴＳ５ＰＧ９６００２７５为２１世纪教育和培训制革工艺技术人员＝ＥｄｕｃａｔｉｏｎａｎｄＴｒａｉｎｉｎｇｏｆＬｅａｔｈｅｒＴｅｃｈｎｏｌｏｇｉｓｔｓｆｏｒｔｈｅ２１ｓｔＣｅｎｔｕｒｙ［刊，英］ＲｉｃｈａｒｄＪ．Ｒ．∥ＪＡＬＣＡ．─１９９４．８９...     

皮革文摘

Ｘ７９ＰＧ９８００皮革生产中的气味控制＝ＯｄｏｕｒＣｏｎｔｒｏｌｉｎＬｅａｔｈｅｒＰｒｏｄｕｃ－ｔｉｏｎ［刊，英］／Ｋｌｅｍｅｎｃ，Ｂ．；Ｇａｎｔａｒ，Ａ．∥ＪＳＬＴＣ．—１９９６，８０（１）．—１１～１４令人不愉快的难闻气味是制革工业中一个难以解决...     

蓖麻油脱水反应宏观动力学

本文提出以ＮａＨＳＯ４为催化剂，蓖麻油脱水反应宏观动力学方程，脱水属一级反应，在１８０～２２０℃脱水反应区间，动力学方程式ｒ＝ｋｏｅｘｐ（Ｅ／ＲＴ）·［ＶＯＨ］，其中活化能Ｅ＝４３．３２ｋＪ／ｍｏｌ，频率因子ｋｏ＝６．４１×１０－２［ｍｉｎ］－１。为ＤＣＯ工业生产与设计提供理论依据。     

皮革文摘

皮革文摘ＴＳ５ＰＧ９６００２５４鼓染法掩盖粒面缺陷──技术评论＝ＷａｙｓａｎｄＭｅａｎｓｏｆＨｉｄｉｎｇＧｒａｉｎＤｅｆｅｃｔｓｉｎＤｒｕｍＤｙｅｉｎｇ－ＴｅｃｈｎｉｃａｌＮｏｔｅ：［刊，英］／Ｓｔｒｅｉ－ｃｈｅｒ，Ｒ．∥ＪＡＬＣＡ，－１９９３，８８...     

皮革文摘

皮革文摘ＴＳ５ＰＧ９７００４１３何谓ＩＳＯ１４０００？它对皮革工业有何影响？＝ＩＳＯ１４０００：ＷｈａｔＩｓＩｔａｎｄＷｈａｔＩｓＩｔｓＩｍｐａｃｔｏｎｔｈｅＬｅａｔｈｅｒＩｎｄｕｓｔｒｙ［刊，英］／ＢｒｙａｎＬ．Ｒ．∥ＪＡＬＣＡ．—１９９６，９１（...     

皮革文摘

皮革文摘ＴＳ５２２．１ＰＧ９８００４９１马鹿皮的放置老化及其有关的化学变化第２部分：氧的作用＝ＡｇｅａｎｄＣｈｅｍｉｃａｌＲｅｌａｔｅｄＣｈａｎｇｅｓｉｎＲｅｄＤｅｅｒＳｋｉｎ．Ｐａｒｔ２．ＲｏｌｅｏｆＯｘｙｇｅｎ［刊，英］／Ｈａｎａｃｚｉｎ－ｓｋｙ...     

皮革文摘

皮革文摘ＴＳ５ＰＧ９８００４７２亨利·里查德逊·普劳克特的早年活动经历即１８４８至１８９１年＝ＨｅｎｒｙＲｉｃｈａｒｄｓｏｎ－Ｐｒｏｃｔｅｒ，ＨｉｓＥａｒｌｙＬｉｆｅ１８４８～１８９ｌ［刊，英］／ｊａｃｋｍａｎ，Ｊ．／／ＪＳＬＴＣ．—１９９３·７７（...     

皮革文摘

皮革文摘ＴＳ５ＰＧ９８００５６８选用染料的难题和机会＝ＤｙｅＳｅｌｅｃｔｉｏｎ—ＰｒｏｂｌｅｍｓａｎｄＯｐｐｏｒｔｕｎｉｔｉｅｓ［刊，英］／Ｔｒｅｍｌｅｔ，Ｒ．Ｊ．／／ＪＳＬＴＣ．—１９９５．７９（１）—５～７皮革在国际穿用时尚方面起着越来越重要的作...     

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