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综述了国内外粮油标准物质体系的发展状况,并进行了分析比较,提出了今后中国粮油标准物质的发展对策。 相似文献
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食品基体标准物质是目标分析物和食品基体的结合,与真实检测样本的成分具有一致性,可以更好地保证测定结果的准确性和有效性。作者从食品基体标准物质的研制与分类、国内外食品基体标准物质的研制现状、存在的问题以及发展趋势进行综合阐述,以期为食品安全检测基体标准物质的研制及发展提供参考。 相似文献
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近年来,由兽药残留而引发的食品安全事件频频发生。因此对兽药残留的监控更加严格,兽药残留检测分析也尤为重要。由于基质效应的干扰,因此在检测分析中需要结合基体标准物质进行校准及质量控制以满足要求。基体标准物质是由目标基体与目标化合物相结合,并且与待测样品一致具有相同的特性,是分析技术重要技术物质保障,在确保分析方法的准确性和可溯源性方面发挥重要作用。本文简要概述了基体标准物质的特点及制备工艺的方式,重点综述了基体标准物质在兽药残留分析中不同兽药种类的研制现状,提出了目前基体标准物质在兽药残留分析中存在的问题及建议,以期为兽药残留分析质量控制基体标准物质的研制及发展提供一定的参考。 相似文献
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食品中基体标准物质研究进展 总被引:1,自引:0,他引:1
国内食品行业问题频出,为了保障食品质量安全,食品标准物质在产品检验和质量控制中不可或缺。由于食品基质复杂,使得许多食品单纯采用纯品标准品已难以满足校准检测体系要求,需结合基体标准物质进行校准。与纯品标准物质相比,基体标准物质为目标化合物和基体结合,与真实检测样品更一致,可以保障测试结果的准确性和质量控制的有效性。我国在纯度标准物质方面的研究已经比较完善,但在复杂基体方面的研究与发达国家仍存在一些差距。本文综述了食品中基体标准物质研究进展,包括国内外食品基体标准物质现状及要求、标准物质研究存在的问题,以期为食品基体标准物质的研制及发展提供一定的参考。 相似文献
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兽药残留检测中,样品基体涉及各种动物组织以及动物性加工食品,由于样品基体本身所存在的差异性使得在分析过程中不能简单地使用纯度标准物质去作对照,而需要使用更加接近实际样品的基体标准物质来满足检测需要。近些年,国内标准物质研发速度较快,数量也在稳步增长,但是动物源性食品相关的兽药基体标准物质数量却很少,远不能满足检测需求,被国家标准物质资源共享平台收录的仅40多种,存在着较大的缺口。本文重点综述了国内外动物源性食品相关兽药基体标准物质的研究进展和关键技术,分析了我国当前存在的问题短板和出现这些问题的原因,以期后续能为相关的研究提供一些参考。 相似文献
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目的 制备芹菜中7种农药及其代谢物基体标准物质。方法 将空白芹菜样品粉碎、冷冻干燥制成干粉后,与农药标准溶液混匀,搅拌挥发干后制得基体标准物质,经均匀性和稳定性检测,由8家实验室联合定值,并进行不确定度评估。结果 基体标准物质中7种农药及其代谢物的特性值为0.497~0.502 mg/kg,扩展不确定度为0.0079~0.0123 mg/kg,均匀性良好,可稳定保存至少12周。结论 通过该方法制备的基体标准物质均匀性和稳定性良好,定值结果可靠,可用于检测过程的质量控制、检测方法开发、实验室能力验证等领域。 相似文献
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CAC农产品加工标准体系现状及发展趋势 总被引:2,自引:0,他引:2
重点介绍了CAC农产品加工标准体系的构成、现状和特点;分别就果蔬、粮油、畜产、水产等领域,对CAC农产品加工标准及发展趋势进行了分析。 相似文献
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通过收集整理国际标准化组织(international standardization organization,ISO)最新资料和粮油及其制品相关标准,介绍ISO标准体系概况,并对ISO粮油标准体系中含油种子、果实和油籽粕、谷物和豆类、动物和植物油脂标准的分类构成、现状、特点分布和最新发展趋势等进行介绍和系统分析。分析结果表明,ISO粮油标准框架结构合理,标准体系完善,侧重于粮油质量安全方面的检测,重视食品质量安全,管理性标准、综合性标准和安全标准将是ISO制定粮油标准的未来重点。结合我国粮油标准体系的实际情况,提出从扩大标准覆盖范围、规范科学标准的制修订管理、引入科学新技术等方面提升中国粮油标准的国际影响力。 相似文献
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Figueroa-González I Quijano G Ramírez G Cruz-Guerrero A 《Journal of the science of food and agriculture》2011,91(8):1341-1348
Owing to their health benefits, probiotics and prebiotics are nowadays widely used in yogurts and fermented milks, which are leader products of functional foods worldwide. The world market for functional foods has grown rapidly in the last three decades, with an estimated size in 2003 of ca US$ 33 billion, while the European market estimation exceeded US$ 2 billion in the same year. However, the production of probiotics and prebiotics at industrial scale faces several challenges, including the search for economical and abundant raw materials for prebiotic production, the low-cost production of probiotics and the improvement of probiotic viability after storage or during the manufacturing process of the functional food. In this review, functional foods based on probiotics and prebiotics are introduced as a key biotechnological field with tremendous potential for innovation. A concise state of the art addressing the fundamentals and challenges for the development of new probiotic- and prebiotic-based foods is presented, the niches for future research being clearly identified and discussed. 相似文献
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常用消毒灭菌法及其机理与应用 总被引:3,自引:0,他引:3
介绍了采用消毒灭菌方法,有加热消毒法,紫外线辐射法和化学药剂消毒法。常用化学药剂有醛类、含氯消毒剂、醇类消毒剂以及高锰酸钾、生石灰等,阐释了消毒与灭菌两个概念的区别。 相似文献
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Wim Verbeke Federico J.A. Pérez-Cueto Marcia D. de Barcellos Athanasios Krystallis Klaus G. Grunert 《Meat science》2010
This paper presents the combined mid-term findings of the consumer research components of two EU Sixth Framework Programme integrated projects concerning meat, ProSafeBeef and Q-PorkChains. The consumer pillar of ProSafeBeef carried out eight focus group discussions in May 2008, in France, Germany, Spain and the UK. Q-PorkChains conducted a large-scale, web-based, consumer survey in January 2008 in Belgium, Denmark, Germany, Greece and Poland. The first project provides a set of qualitative data from a small cohort of focus groups and the second a set of quantitative data from a larger consumer sample. This paper draws together the main findings of both projects and provides a comprehensive overview of European citizens’ and consumers’ attitudes towards and preferences regarding beef and pork. In general, consumers consider meat to be a healthy and important component of the diet. Consumers support the development of technologies that can improve the health attributes of meat products and guarantee eating quality, but they have a negative view of what they see to be excessive manipulation and lack of naturalness in the production and processing of beef products. In the Q-PorkChains study consumer and citizen segments are identified and profiled. Consumer segments were built upon the frequency and variety of pork consumption. The citizen segments were built upon their attitudes towards pig production systems. Overall, the relationship between individuals’ views as citizens and their behaviour as consumers was found to be quite weak and did not appear to greatly or systematically influence meat-buying habits. Future studies in both projects will concentrate on consumers’ acceptance of innovative meat product concepts and products, with the aim of boosting consumer trust and invigorating the European beef and pork industries. 相似文献
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果蔬可以提供营养, 有利于人类健康, 而果蔬的后熟及其与环境的相互作用会影响果蔬采后的质量和安全。对果蔬生物学过程的了解和掌握是减少果蔬采后损失和保障果蔬采后质量和安全的关键。在过去的10多年, 基于组学技术的系统生物学在了解果蔬后熟及其与环境相互作用的分子机制方面得到了越来越多的应用。本文对此做了细致的总结, 指出了存在的不足, 并提出了未来的发展方向。 相似文献
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