基于酶抑制法的农药残留快速检测仪器现状及评价

为了确保果蔬类农产品的食用安全, 对蔬菜瓜果进行农药残留的检测十分重要。本文通过对我国农药残留快速检测仪器的发展现状和评价方法的讨论, 分析了基于酶抑制法的农残速测仪器现存的主要问题, 并提出进行农残速测仪器评价工作的必要性。     

我国食用农产品质量安全监管现状分析

食用农产品质量安全直接影响人民群众的身体健康和生命安全。经过2013年机构改革对食用农产品监管体制的调整和划分,我国逐步形成并建立起统一权威的食用农产品质量安全监管体系。然而,我国现阶段食用农产品质量安全监管仍存在一定问题,如现行的《食品安全法》与《农产品质量安全法》难以有效衔接、监管部门间职责不清、监管环节空白的情形仍然存在。同时,我国食品安全标准存在检测水平落后、不同层级标准间存在冲突等问题。此外,基层食用农产品安全监管执法人员水平参差不齐、技术监管手段有限等因素也直接制约了食用农产品的有效安全监管。本文从我国食用农产品质量安全监管体系现状、存在的问题、解决方法及建议等方面对我国现阶段食用农产品质量安全监管进行分析探讨。     

食用农产品质量安全现状、存在问题及政策建议

对我国食用农产品质量安全现状进行概述,对现象背后隐藏的问题进行分析,发现监管格局本质未变、标准国际话语权不足、检测体系区域分布不均、法律规制不全面等问题较为突出;为此,对食用农产品质量安全政府规制所依托的载体和应遵循的技术路线设计提出相关建议。     

食用农产品快检体系的建立及在基层应用中的探讨

近年来,食用农产品中农兽药残留所导致的一系列食品安全问题受到了各级政府的重视,并将农产品快速检测实验室建设作为重点民生实事工程。此举虽然使快检技术迅速推广并拓展了快检队伍,但食用农产品快检体系仍存在不健全、不完善的问题,百姓依旧认为食用农产品的质量安全现状与检测数据不符。为此,本文基于基层食用农产品快检体系建设的现状来分析其建设过程中存在的主要问题及需求,并提出体系建设的意见和思路以供参考。     

浅谈农残快速检测技术在临汾市基层农产品质量安全中的应用与发展

农产品质量安全是现代农业高质量发展的关键,食用农产品承诺达标合格证制度的施行,以市场准入倒逼生产管理,推动了产地准出制度的实施,大大提升了农产品质量安全水平。农残快检技术的推广应用,有效解决了蔬菜、水果等生鲜类食用农产品对检测时效、操作简便、结果准确的要求,破解了制约承诺合格制度施行的难题,对于提升农产品全程监管水平有积极意义。本文通过农药残留快速检测技术在临汾市的应用,总结分析了农残速测技术对提升农产品质量安全水平的积极作用,为推动临汾市农业高质量发展提供了有效技术支撑。     

农贸市场食用农产品快速检测工作监督评价与效果分析

食品安全问题一直是社会关注的焦点。快速检测技术以其操作简单、快速、灵敏、价格低廉等优点, 在食用农产品质量安全检测中具有广阔的应用前景, 对保障食品安全发挥着重要的作用。目前, 农贸市场食用农产品快速检测工作模式多种多样, 取得的效果也不尽相同。首先, 本文介绍了我国农贸市场食用农产品快速检测开展模式, 分析了食用农产品快速检测工作存在的问题; 然后, 以广州市农贸市场食用农产品快速检测工作模式为研究对象, 详细介绍了广州市快速检测监督评价工作措施, 以及从评价得分、问题整改效果、问题样品发现率等方面对监督评价效果进行分析; 最后, 针对我国食用农产品快速检测工作的现状, 提出监管建议, 以期为监管部门开展食用农产品快速检测工作提供参考。     

食用农产品质量安全快速检测推广应用问题研究

<正>食用农产品是人们日常饮食的重要组成。食用农产品的质量由食用农产品自身的性质所决定,快速检测技术对于保障其质量安全有着重要的意义。本文基于此开展研究,系统分析了制约食用农产品质量安全快速检测推广应用的因素,并提出针对性措施,为更好的推广应用快速检测技术提供依据。     

食用农产品质量安全风险分析及监管建议

食用农产品包括各种植物、畜牧、渔业产品及其初级加工产品,是各类食品生产加工的基础。因此,食用农产品的质量安全直接影响着人们的身体健康和生命安全,是关系着国计民生的大事。近年来,我国食用农产品质量安全检查合格率呈现稳中向好发展态势,但质量安全风险隐患在部分地区、部分品种上依然存在。本研究对2021年国家市场监督管理总局公布的抽检信息进行概述,发现农兽药残留和金属元素污染是农产品质量安全不合格的主要因素,在此基础上,分析影响食用农产品质量安全的化学源、生物源和物理源风险因子以及产生安全隐患的原因,并就源头管理,专业技术提升,推进速测技术实施,加大法制宣传等方面对如何控制食用农产品质量安全隐患提出监管建议。旨在为进一步提升我国食用农产品质量安全提供参考。     

食用农产品快速检测能力评价的意义及过程

食用农产品安全是健康饮食的保障。根据现阶段食用农产品快速检测技术应用现状，本文对食用农产品快速检测能力评价具备的条件、评价方法和步骤、评价内容及依据、评价结果等进行了分析，旨在为食用农产品快速检测能力评价提供科学的参考依据。     

农产品农药残留主要检测方法及其研究进展

随着经济社会的快速发展,国民食品安全意识不断提高,人们对食用农产品的质量提出了更高的标准和要求,而农药的施用是影响农产品质量安全的主要原因。农产品中残留的农药会危害人类身体健康,影响农业生产和出口贸易。本文综述了农药残留的产生、危害及其主要的检测方式,以期为农产品农药残留检测水平的升级提供方向,为完善农产品质量安全监管体系提供参考。     

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.     

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