野生红豆果饮料的澄清

本文研究了四种澄清剂对野生红豆果饮料的澄清作用。结果表明饮料澄清剂Ⅱ型效果最好 ,澄清迅速 ,生成的絮状沉淀物颗粒大 ,易于分离 ;透明度高 ,不影响饮料的颜色和风味 ;澄清后的饮料具有很好的稳定性 ,工艺简单 ,成本低。最适用量为 0 .0 5 %。     

明矾澄清灵芝饮料效果的研究

本实验在研制灵芝饮料的工艺过程中，用明矾作为澄清剂来澄清饮料，对影响明矶澄清效果的各因素进行了研究．实验结果是：明矾浓度0．18％、温度25℃、时间6h、pH值3．5。     

仙人掌清汁饮料的研制

研究了仙人掌清汁饮料的西方和工艺流程，主要解决仙人掌汁饮料的澄清问题，结果表明，使用0.05%高效饮料澄清剂澄清15%仙人掌饮料，效果显著，工艺简单，成本低廉，澄清后经过调配加工，可制成具有较好保健作用和凉爽感的仙人掌清汁饮料。     

澄清百合饮料的研制

研究了酶法生产澄清百合饮料的工艺过程，并对百合浆料液化、糖化条件及百合饮料的调配进行了探讨，解决了利用高淀粉樾的原料制作 澄清饮料的稳定性问题。     

马齿苋澄清饮料的研制

以野菜马齿苋为主料，苹果为辅料，研制马齿苋澄清饮料。其产品色泽鲜艳、口味独特。试验对其加工过程中的取汁方法、澄清方法、酸味剂选择、产品配方等主要工艺进行了研究。     

明矾澄清灵芝饮料效果的研究

本实验在研制灵芝饮料的工艺过程中,用明矾作为澄清剂来澄清饮料,对影响明矾澄清效果的各因素进行了研究。实验结果是:明矾浓度0.18%、温度25℃、时间6 h、pH值3.5。     

超滤—饮料工业中的新型澄清技术

介绍了饮料生产中的一种新型澄清技术-超滤技术，使用该技术生产的饮料在产品质量上明显优于其它方法的产品，且加工成本比其它澄清方法低廉。     

绿茶饮料的澄清技术

通过对绿茶饮料澄清工艺的系统研究、复配出一种适合绿茶饮料的澄清吸剂，实验证明，添加剂为茶汤的０．７５％，在６０℃吸附３０ｍｉｎ后，其饮料的澄清度及口感均佳，茶多酚含量绿茶饮料的行业标准。     

澄清型白果饮料的工艺特性研究

研究了酶法制备澄清型白果饮料的工艺条件及主要工艺参数对饮料的澄清度和稳定性的影响。通过正交试验得出最佳工艺参数。研制的白果汁澄清度为９８．９０％，稳定时间在６个月以上。该产品不仅营养丰富，而且有效地除去了微量氰化物和烃基酚类等有毒物质。     

几种澄清方法在果蔬汁饮料生产中的应用

就不同的澄清方法对不同果蔬汁饮料产生不同的澄清效果进行了研究和试验。得出,在生产中应针对不同的果蔬汁饮料采用不同的澄清方法     

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