食品农药残留分析进展研究

食品安全问题是关系着国民健康的重要问题。近年来,越来越多的食品安全事件频发,严重威胁国民的健康,国民对食品安全问题也越来越重视。同时,我国是个农业大国,食品安全中的农药残留问题突出,农药进入人体的危害性极大,会导致人体中毒、畸形等等问题,因此迫切需要改变农药残留的食品安全问题。本文将从食品农药残留分析的现状、食品农药残留的超标原因、前处理技术、检测技术等方面进行阐述。     

纳达康生物:专注于全自动

正针对农残、兽残引起的食品安全问题,纳达康生物为业界带来了前沿的技术支持,和优良的解决方案,为此,《食品安全导刊》记者采访了纳达康生物科技有限公司副总经理谢明针女士。食品中的农药、兽药残留超标是食品安全的高发问题,在农作物的种植和畜禽养殖环节,农药、兽药的不合理使用会导致农药残留、兽药残留超标、违规;而绝大多数种养殖户自己无法检测,所以也不清楚药物是否存在残留超标现象,于是超标违规的食品流入消费者餐桌,影响消费者食用安全,严     

农产品中农药残留检测的研究进展和展望

近年来,食品安全问题不断发生,我国已在2009年出台《中华人民共和国食品安全法》,农产品作为日常人民餐桌上的主要食品,其安全至关重要,而农产品主要风险在于农药残留,怎么能快速、准确检测农药残留超标样品,成为了农产品质量安全检测中至关重要的一环。本文主要介绍了目前农药残留快速检测研究进展,并对其发展方向进行展望。     

食品安全检测技术在农产品农药残留检测中的运用

当今社会,食品安全问题成为人们时刻关注的热点,它既关系到人们的身体健康和生命安全,还关系社会的和谐与稳定。农产品作为人们餐桌上必不可少的食物,其食用的安全性不容忽视。使用有效检测技术对农产品农药残留进行检测是食品安全检测的重要工作内容,本文从农产品农药残留超标的危害及检测重要性出发,深入讨论农药残留检测现状并分析原因,以采取有效农药残留检测技术,提升农产品食品安全管理水平,确保食品安全,推动我国食品行业的发展,     

水产品中孔雀石绿残留检测技术研究进展

<正>随着人们对兽药残留危害的深入了解,水产品中的兽药残留已经成为食品安全领域关注的的热点和焦点。在我国,滥用、乱用限用药物和非法使用禁用药物等现象屡禁不止,这已成为导致我国水产品中兽药残留超标的主要原因,还引发了水产品消费安全问题和食品贸易争端等严重后果。2017年,中央把食品安全问题放在了重要位置,这体现了国家对食品安全问题的重视。习主席对食品安全工作     

2018年石家庄市蔬菜中农药残留及慢性膳食暴露评估

目的 了解河北省石家庄市蔬菜中农药残留现状,评估蔬菜中农药残留的慢性膳食暴露风险。方法 随机采集2018年石家庄市主要蔬菜生产基地和集贸市场的蔬菜样品,采用NY/T761-2008方法检测3521批次14类蔬菜样品中的65种农药残留,分析石家庄市蔬菜中农药残留现状,并结合我国居民的蔬菜消费情况和食品安全指数对石家庄市居民于蔬菜中摄入的农药风险进行慢性膳食暴露评估。结果 石家庄市抽检的蔬菜中农药残留检测合格率达99.80%,14类蔬菜样品中检出8类、超标1类,检出率为3.10%,超标率0.20%,超标均为叶菜类蔬菜。定量检测出13种农药,超标农药为水胺硫磷和毒死蜱,分别超标5批次和2批次。对所有检出农药进行慢性膳食暴露评估结果表明,水胺硫磷和毒死蜱的日摄入量相对较高,所有检出农药的食品安全指数值均小于1。结论 石家庄市市蔬菜中农药残留量的安全风险均在安全范围内,居民蔬菜中农药残留的慢性膳食暴露风险小,水胺硫磷、毒死蜱是潜在的风险因子,应重点防患其残留风险。     

拉曼光谱技术在农产品药物残留检测中的应用

近年来,农产品药物残留超标引发了一系列食品安全问题,为了保障国家食品安全、保护消费者健康,需要对农产品中的药物残留进行定性定量检测。表面增强拉曼散射技术 (Surface-enhanced Raman scattering , SERS) 是一种极具吸引力的工具,可用于高效检测农药残留。本文介绍了表面增强拉曼光谱检测技术的概况,简介了拉曼增强基底,分析了表面增强拉曼光谱技术在药物标准溶液、农产品(肉类、水产品、果蔬和其他部分农产品等)药物残留检测领域中的研究现状,并针对当前农产品药物残留检测的发展趋势进行前景展望。     

农产品质量安全控制与农药残留检测技术探究

在构成威胁食品安全的各大因素中，农产品中的农药残留是威胁食品安全的关键。如果农药残留超标的话就会危害到人身健康和安全。对此，为了更好实现农产品质量安全的控制，本文针对农产品的质量现状进行了分析，并根据现阶段农产品存在的问题，制定出有效控制农产品质量安全的相关策略，控制农产品的农药残留量，为广大人们提供更为健康的、绿色的产品。     

浅析我国食品安全问题现状及对策

改革开放以来,中国经济发展方式由粗放式向精细化发展转变,食品安全问题亦逐渐被社会各界所重视.食品安全问题与每一个公民的日常生活息息相关.但目前我国的食品安全现状还令人担忧,食物中毒、食品添加剂过量、农药残留超标、生长激素过量使用等食品安全问题时有发生,生产者违法经营、监管者监管不力、消费者维权意识不强等现象仍然存在.要...     

食品安全风险分析在农药残留标准制定中的应用探讨

食品安全风险分析是国际上公认的食品安全管理理念,作为一种保障食品安全的科学手段已被越来越多的国家所采纳及广泛应用。农药残留标准是食品安全标准的重要组成,在农药残留标准的制定中以食品安全风险分析为基础也已成为世界各国普遍的做法。我国农药残留标准仍存在许多问题,需要借鉴国际先进组织和发达国家的做法,指导我国农药残留标准的制定工作。     

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.     

Chlorohydrins of bisphenol A diglycidyl ether (BADGE) and of bisphenol F diglycidyl ether (BFDGE) in canned foods and ready-to-drink coffees from the Japanese market

BADGE.2HCl and BFDGE.2HCl were determined in 28 samples of ready-to-drink canned coffee and 18 samples of canned vegetables (10 corn, 5 tomatoes and 3 others), all from the Japanese market. HPLC was used as the principal analytical method and GCMS for confirmation of relevant LC fractions. BADGE.2HCl was found to be present in one canned coffee and five samples of corn, BFDGE.2HCl in four samples of canned tomatoes and in one canned corn. No sample was found which exceeded the 1mg/kg limit of the EU for the BADGE chlorohydrins. However the highest concentration was found for the sum of BFDGE.2HCl and BFDGE.HCl.H₂O at a level of 1.5mg/kg. A Beilstein test confirmed that all cans containing foods contaminated with BADGE.2HCl or BFDGE.2HCl had at lest one part coated with a PVC organosol.     

European priorities for research to support legislation in the area of food contact materials and articles

A strong science base is required to underpin the planning and decision-making process involved in determining future European community legislation on materials and articles in contact with food. Significant progress has been made in the past 5 years in European funded work in this area, with many developments contributing to a much better understanding of the migration process, and better and simpler approaches to food control. In this paper this progress is reviewed against previously identified work-areas (identified in 1994) and conclusions are reached about future requirements for R&D to support legislation on food contact materials and articles over the next 5 or so years.     

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