加强质量监督工作 提高食品检测实验室工作效率

正在食品检测工作中,食品检测实验室起到的作用至关重要,其操作的规范性、人员的素质等均会影响到检测结果的准确性,因此加强对食品检测实验室的质量监督工作十分必要。一、食品检测实验室质量监督存在的问题监督工作人员的能力不足。由于我国涉及     

食品检测实验室的质量监督策略探析

<正>质量监督在食品检测实验室中具有重要的意义,也是重要环节,是提升实验室人员能力的有效手段,质量监督能够有效确保检测结果的准确性以及客观性。质量监督是为了确保产品满足一定的质量要求而对食品进行监视和验证,从而记录产品风险。近年来随着我国食品产业的快速发展,食品质量监督也在不断进步。但我国的食品质量监督机制不够健全,从而使我国食品的质量存在一定的问题。在我国食品产业方面,经常能听     

食品检测实验室的质量监督

<正>质量监督作为食品检验实验室中的重点管理流程,对食品检测实验室工作人员的工作能力要求较高。加强质量监督,可以有效保证食品检测质量,确保检测结果的客观性与准确性。否则,在食品检测过程中,一旦缺少完善的质量监督模式与制度,例如监督人员的综合能力较差、监督记录情况不实、监督评价不正确等,将严重影响食品检验实验室的质量监督效果。     

食品实验室质量控制

在食品检测实验室质量控制中,构建完善的控制制度,实行全过程质量管理,是全面提高食品检测质量的关键所在。本文立足于食品检测实验室质量控制管理的重要性,分析了质量控制管理中存在的问题,并在此基础上,从完善质量管控制度、实行全过程质量控制、提高检测人员综合素质等方面,论述了强化食品检测实验室质量控制及管理的措施。     

探析食品检测实验室质量控制与管理

进入新时期后,人们日趋重视食品安全问题。食品检测实验室的主要功能是检测食品,然后向社会提供检测结果。而检测数据的准确性会直接受到食品检测实验室人员管理和质量控制的影响,需要结合现阶段存在的问题,采取针对性的控制管理措施。     

食品理化检测实验室的质量管理

食品种类与数量丰富的当今社会,繁荣发展的食品理化检测实验室不仅维护了食品行业的公平竞争,也为广大人民的食品安全保驾护航。因此,全方位地提高食品理化检测实验室的检验能力对食品质量的提升具有至关重要的作用。本研究在长期食品理化检测实验室中工作和学习的基础上,参考《实验室质量控制规范食品理化检测》、《食品检验机构资质认定条件》建立一套科学、有效、可靠、全面的实验室质量管理体系,分析归纳食品理化检测实验室的管理要素,提出有效措施,以期提高实验室检测人员的检测能力,从而全面提高实验室管理能力,减少风险。     

食品检测实验室质量管控策略

正食品检测实验室的主要工作是对食品质量进行检测,再将检测结果提供给社会相关部门参考,从而保障群众食用安全,促进食品行业的可持续发展。尽管食品检测实验室的设备更加先进,但仍存在诸如检测人员的专业素质不强、仪器设备的维护与保养不到位、实验室环境水平滞后、过程管理不到位等问题,极大影响到实验室检测质量。抽样及样品管理抽样及样品管理是食品检测实验室过程管理中的非常关键的环节,实     

加强质量监督工作提高食品检测实验室工作效率分析

质量监督是食品检测工作的重要部分,能够在督促实验工作者进行高质量工作的同时提高工作人员的能力,让检测结果更加准确,从而提高了食品检测工作效率。由此可以看出,质量工作的重要性。因此,本文就对加强质量监督工作,提高食品检测实验室工作效率进行分析和研究。     

浅谈系统准确适应度检测食品化学证实方法的实施和优化

随着国民素质的不断提高,食品检测实验室面临着越来越艰巨的任务,食品检测是食品流通领域的重要防线。食品检测实验室的工作直接关系到国民经济、民生和食品安全。它与其它工业试验不同,但在食品检测方面仍存在一些不足。人们越来越重视食品的健康,食品检测有其特殊性有待改进,这与食品安全和人们的健康息息相关。因此,有必要专门实验室开展检测活动,特别是加强食品检测实验室的质量控制方法。     

食品检测实验室质量控制与管理问题研究

近年来,食品安全事故频发,成为社会各界关注的重点问题。食品检测实验室是保障食品安全的重要场所,为全社会提供可靠的检测数据和参考标准。当前食品检测实验室虽然拥有健全的检测设备,但是在人员培训、设备使用、实验室布局及质量管理等方面有诸多问题。本文立足于现实,首先分析食品检测实验室在工作中存在的问题,其次针对质量控制及管理提出有效策略,希望具有一定的借鉴意义和参考价值。     

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