国内外茶饮料生产技术及应用

综合论述了国内外不同茶饮料的生产工艺流程，分析了水质、茶叶原料、工艺技术、包装方式及材料等因素对茶饮料品质的影响。并介绍了茶饮料生产中解决混浊或沉淀的技术及色香味的保持技术。     

茶饮料的风味调配

了解茶饮料的调配原理和调配技术是开发和生产品质优良、风味独特茶饮料的关键。而茶饮料的风味调配又是茶饮料加工的关键工序。主要介绍了茶饮料风味调配的原理、程序和方法，以期对茶饮料加工企业的生产有所帮助。     

茶的起源与饮料加工

本文简述了茶的起源及其营养成份对人体的作用，并对茶饮料加工工艺进行了初步研究。确定了茶饮料生产的工艺条件，为工业化生产提供了技术保证。     

高新技术在茶饮料生产中的应用及前景

介绍了浓缩及分离技术、干技术、微胶囊技术、杀菌技术、酶技术等高新技术在茶饮料生产中的应用，展望了其应用前景。     

茶饮料生产技术及装备

自从 1 996年旭日集团打出冰茶开始 ,中国饮料工业有了一个新的市场——茶饮料。 1 997年至 1 999年 ,茶饮料在中国的产量每年都以几何数增长 ,1 997年约 2 0万 t,1 998年约 50万 t,1 999年约在 80万 t左右 ,2 0 0 0年的产量有生产厂家估计将为 1 0 0万 t。茶饮料的异军突起已在整个饮料界占有重要地位。本文就以茶饮料生产过程中的主要生产技术及装备 ,特别是热灌装茶饮料的生产技术装备作概括介绍。1　茶饮料生产工艺流程茶叶是一种农产品 ,气温、阳光、土壤、栽培技术、加工技术等因素都会影响其品质的稳定一致。用茶叶作为生产茶饮料的…     

茶饮料萃取技术研究现状

茶叶浸提是整个茶饮料生产工艺的关键环节之一,浸提效果好坏直接影响到后续生产过程。综述了目前茶饮料生产中萃取浸提技术的研究现状,分析了各浸提技术的优缺点,为茶饮料的生产和研究提供一定的参考。     

金花茶饮料工艺的研究

本文研究了生产条件下金花茶饮料浸提的基本工艺，及防止金花茶饮料出现货架期浑浊的澄清工艺。通过多因素正交实验，确定了金花茶饮料的最佳生产工艺。     

微胶囊技术及其在茶饮料生产中的应用

对微胶囊的组成、功能、造粒方法与步骤,以及微胶囊技术在茶饮料在茶饮料中的应用作了较全面的论述,并展望了其在茶饮料生产中的应用前景。     

茶饮料的澄清技术

全面了茶饮料生产中的茶汤的澄清技术，展望了澄清技术的应用前景。     

国内外茶饮料标准概况

国内外茶饮料标准概况徐清渠中国食品发酵工业研究所北京１０００２７各位代表：你们好！首先感谢饮料工业协会和大闽食品有限公司给我这次机会参加“茶饮料开发与发展研讨会”，从今天参加会议的代表来看，大多数来自茶饮料企业中负责生产技术、产品开发方面的负责同志...     

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