基于文献计量的食品真伪鉴别研究态势分析

基于ISI Web of Science的Science Citation Index(SCI)数据库,本文采用文献计量学方法,采集整理了1905—2014年间的食品真伪鉴别研究相关的文献,借助Thomson Data Analyzer、Many Eyes等工具,分析世界食品真伪鉴别文献情况。通过文献计量分析世界食品真伪鉴别研究态势,总结食品真伪鉴别领域的研究历程,挖掘研究热点和前沿,为食品真伪鉴别科技工作者和决策部门提供参考依据。     

全球黄曲霉毒素研究的文献计量学分析

为及时了解国内外黄曲霉毒素的研究现状、热点及发展趋势,为相关研究领域的科研工作者与决策者提供参考,本文采用文献计量学方法对Web of Science核心数据库收录的2003—2020年间黄曲霉毒素研究文献进行了统计分析。结果表明,目前全球黄曲霉毒素研究的文献数量呈快速增长趋势,其中美国和中国是发文量最高,也是开展国际合作最活跃的两个国家。发表黄曲霉毒素相关研究最多的期刊是Food Control,而食品科学技术是发文最多的学科方向。美国的Cotty P J在发文量和H指数方面均居世界首位。仅1篇中国学者的论文进入了该领域高被引论文的前100名,表明国内目前缺乏具有国际影响力的重要成果,在研究创新性和发文质量上还有上升空间。此外,利用VOSviewer和CiteSpace文献可视化分析软件分析了不同时期及不同国家黄曲霉毒素研究的高频关键词,并对关键词进行了聚类分析和突现分析。黄曲霉毒素的新型检测技术、高效解毒方法、生物防治以及生物合成的调控机制等将可能成为该领域未来的研究热点和前沿。     

食品鉴伪技术体系的研究与应用

食品真伪检测鉴别技术已成为食品安全领域的关注热点之一.本文分析了我国鉴伪的重要性和艰巨性,阐述了食品鉴伪的概念及重点工作,提出了建立现代食品分子检测鉴别技术体系的研究思路.     

面向小微食品企业的标准化知识体系构建研究

目的 研究构建小微食品企业的通用标准化知识体系。方法 利用文献计量学分析方法和知识图谱可视化技术，对1978-2023年间的食品标准化领域的文献进行整理统计和数据挖掘，分析食品标准化领域的研究热点、重点问题；再面向34家小微食品企业发放问卷，调研企业在实际生产生活中的标准化需求。结果 文献计量分析表明，食品标准化领域的研究热点集中在绿色食品、食品安全、标准编写等方面；问卷调研表明，小微食品企业对于参与标准研制活动、标准体检建设等方面的需求度较高。结论 本研究提出了包括标准化基础知识和企业标准化实践知识的小微食品企业标准化知识体系框架，为系统性开展标准化知识宣传和普及提供了参考依据。     

食品组学技术在食品真伪鉴别和溯源方面应用进展

食品真伪鉴别和溯源技术是保障食品安全的重要手段。食品鉴别和溯源技术是对食品的真伪、产地和来源等相关信息进行分析及追溯,在食品质量与安全领域中占据强有力的地位。随着食品掺假频发、掺假手段多样,传统检测方法已不能满足食品的质量与安全管理要求,因此亟须发展新型快速准确的食品鉴别和溯源技术。食品组学是近年新兴的采用基因组学、转录组学、蛋白质组学及代谢组学等组学技术系统研究食品的营养与安全的一类技术,因其强大的物质鉴定功能,可以为食品鉴别和溯源提供科学依据和技术支撑。本文对食品组学技术在食品真伪鉴别和溯源方面的应用进展进行了综述,并对未来食品组学技术的发展趋势进行了展望,以期为食品质量与安全控制提供技术参考,保障人民身体健康和生活质量。     

中国30个科研前沿表现卓越 排名世界第二

正科技日报北京10月31日电中国科学院31日发布《2016研究前沿》报告(以下简称《报告》),指出在世界180个热点前沿和新兴前沿中,中国表现卓越的有30个,在世界各国中位列第二。《报告》是中科院科技战略咨询研究院、中科院文献情报中心与克莱立飞分析公司(原汤森路透知识产权与科技事业部)合作完成的。研究者从近六年文献共被引聚类分析形成的12188个研究前沿中,遴选出自然科学和社会科学10个大学科领域排名最前的100个热点前沿,并     

CiteSpace联合VOSviewer对血糖生成指数相关文献的可视化分析

血糖生成指数(glycemic index, GI)是医学及食品领域研究的热点,目前尚无学者对该领域学术研究现状进行系统分析。该研究选取1992—2022年WOS(Web Of Science)及中国知网(CNKI)数据库中关于GI相关的学术期刊文献作为研究资料,采用文献计量学研究思路与方法,以CiteSpace、VOSviewer、Excel等软件为工具,对所纳入的1 389篇外文文献及365篇中文文献进行可视化分析。从文献的作者、发文机构、期刊类别、关键词共现分析、聚类分析、突现分析等7个方面对文献资料进行系统分析。结果显示,影响食物GI高低的因素、GI饮食干预慢性病患者的效果、低GI食品的开发等作为主要的研究方向。食品GI的研究已有40多年历史,国外文献偏向于基础研究,国内侧重于应用研究。国外研究从研究深度、学术影响力、团队实力都强于国内,但国内GI研究发展势头乐观。未来GI研究领域,各研究机构及团队应强化跨地域、跨国界、跨学科的合作交流,增加GI在相关领域的高质量证据支持。     

国际视野下食品检测研究热点及前沿的可视化分析

该文以ISI Web of knowledge收录的文献题录作为数据样本,对食品检测研究文献的时空分布进行分析,然后利用动态网络分析的信息可视化技术和工具—CiteSpace Ⅱ对这些数据进行文献共引分析和聚类分析,绘制出食品检测的研究发展演进的知识图谱,揭示了食品检测的代表人物和代表文献,展现了食品检测的热点领域和研究前沿。     

宏条形码技术在食品物种鉴定中的应用及展望

食品物种鉴定是食品真伪鉴别中的重要研究内容之一。聚合酶链式反应、基因芯片等方法均被应用于食品 物种鉴定。近几年,基于高通量测序的宏条形码技术发展迅速,与基于传统测序方法的条形码技术相比,该技术具 有成本低、通量高、速度快等优点,且可以实现同时检测复杂样品中多个物种的目的,因而在食品物种鉴定方面显 现出很大的优势。本文介绍了宏条形码的含义和研究方法,综述了近年来宏条形码技术在食品物种鉴定领域的应 用,总结和讨论了宏条形码技术应用于食品物种鉴定领域面临的挑战,并对该技术的发展方向进行了展望。     

荞麦在食品相关领域研究态势分析

基于WoS、CNKI数据库,通过科学计量学的方法,采集了1992~2016 年间荞麦研究相关的中外文文献,运用知识图谱分析了国内外荞麦研究进展,揭示了该领域发展脉络及知识结构、核心研究单位,总结了该领域研究现状、热点及发展趋势。以此为荞麦相关领域的科研工作者提供研究思路与方向,同时为科学管理者决策提供数据参考。     

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