共查询到18条相似文献,搜索用时 62 毫秒
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纳米金具有良好的生物相容性和独特的光学性质,可与生物和有机分子结合,形成功能化的纳米金。基于这些特性,纳米金在食品安全检测方面有着广泛的应用。本文综述了纳米金在食源性致病菌、生物毒素、重金属离子、药物残留、食品添加剂及非法添加物和其他食品有害因子检测中的应用实例,并对纳米金在食品安全检测方面的应用进行了展望。 相似文献
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食品污染物检测技术研究进展与食品安全检测方法标准研究 总被引:6,自引:0,他引:6
本文综述了我国农药、兽药、重要有机污染物、食品添加剂、饲料添加剂与违禁化学药品、生物毒素、食品中重要人畜共患疾病病原体检测技术的研究进展。概述了部分国际食品安全检测方法标准的现状和内容,提出了目前我国食品安全检验方法标准存在的问题,指出了我国食品安全检测方法标准国际接轨的方向和策略。 相似文献
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食品污染物作为食品安全问题的主要来源之一,严重威胁着人民群众的身体健康。发展快速、灵敏且专一的食品污染物检测技术是当今食品科学界所关注的热点问题之一。功能纳米材料研究的快速发展为食品污染物检测方法的创新提供了很好的理论基础和技术支持。基于功能纳米材料开发的检测新技术具有准确、灵敏、稳定、专一等特点,已广泛应用于食品污染物检测领域。本文介绍量子点、贵金属纳米颗粒、磁性纳米材料和碳纳米管等现阶段研究最为广泛的4种纳米材料的特点,综述这几种功能纳米材料在食品中重金属、农兽药残留等食品污染物检测中的应用现状,探讨功能纳米材料在食品污染物检测应用中所存在的缺陷,并展望功能纳米材料在食品污染物检测领域的未来发展方向。 相似文献
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食品中柠檬酸的检测方法研究进展 总被引:1,自引:0,他引:1
结合国内的研究进展,综述了食品中柠檬酸的各种检测方法。其中重点介绍了比较常用的测定方法,如高效液相色谱法、离子色谱法、气相色谱法、电泳法、分光光度法等,并建议采取有效方法进行检测。 相似文献
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牛磺酸是一种含硫β-氨基酸,是人体必须的氨基酸之一,具有广泛的生理学作用,作为添加剂多用于药物与食品中。文章总结了测定牛磺酸的主要方法,包括气相色谱法、薄层色谱法、高效液相色谱法及衍生化高效液相色谱法、氨基酸自动分析法等方法。 相似文献
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Ronald P. Haff Natsuko Toyofuku 《Sensing and Instrumentation for Food Quality and Safety》2008,2(4):262-273
The ability of X-rays to traverse through matter and reveal hidden contaminants or defects has led to their extensive use
in manufacturing industries for quality control inspection. The difficulties inherent in the detection of defects and contaminants
in food products have kept the use of X-ray in that industry limited mainly to the packaged foods sector. Nevertheless, the
need for non-destructive internal product inspection has motivated a considerable research effort in this field spanning many
decades. Improvements in technology, especially more compact and affordable high voltage power sources, high speed computing,
and high resolution detector arrays, have made many X-ray detection tasks possible today that were previously unfeasible.
These improvements can be expected to continue into the future. The purpose of this article is to give a review of research
activity related to the use of X-ray imaging for the detection of defects and contaminants in agricultural commodities and
discuss improvements in technology required to improve these detection capabilities. 相似文献
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Along with the progress in nanoscience, a variety of advanced functional nanomaterials were constructed to develop effective and innovative analytical techniques for food safety surveillance. In this review, we summarized the advanced analytical methods that have been developed based upon advanced functional nanomaterials, including plasmonic nanomaterial-based colorimetric methods, fluorescent nanomaterial-based fluorescent methods, advanced functional material-based molecular imprinting technology, advanced functional material-based chromatographic methods, plasmonic nanomaterial-based surface enhanced Raman scattering technology, and advanced functional material-based electrochemical methods. This review provides a progressive roadmap for further development of portable, rapid, and in situ detection technology to promote food safety surveillance from bench to market and eventually reduce the gap between research in the laboratory and industrial applications. 相似文献
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Applications of nanotechnology in food have rapidly increased in the past decades. Ultra-small gold nanoclusters (Au NCs), composed of several to roughly a hundred atoms, represent a kind of novel nanomaterials. The Au NCs directed by food proteins have drawn considerable research attention due to their environment-friendly preparation, strong fluorescence, excellent photo-stability, and favorable biocompatibility. These interesting protein–Au hybrids have opened up a new area at the nano-bio-food interface, not only did they provide the missing link between single metal atoms and plasmonic metal nanoparticles, but also developed the hybrid system between biomacromolecule and inorganic ions. In this review, we highlighted the synthesis strategies and optical properties of the Au NCs stabilized by typical food proteins as well as their applications in detection of food contaminants or bioactive nutrients. In addition, we discussed current challenges and future development in food proteins- directed gold nanoclusters for size-controlled synthesis and multifunctional applications. 相似文献
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核酸适配体生物传感技术是近些年发展起来的一种新的检测技术,具有靶向性强、灵敏度高、价格低廉等优点,被广泛应用于医药工业、生物医学、环境分析、食品分析等领域。其中,在食品分析领域主要体现在农残、重金属、食品添加剂以及生物毒素等检测方面。本文首先介绍了核酸适配体的概念、筛选方法、核酸适配体传感器优点,重点从传感器的设计、传感检测原理、检测性能等方面综述了核酸适配体生物传感器在Pb~(2+)等食品污染物检测中的应用;最后对核酸适配体生物传感器的发展趋势进行了展望。 相似文献
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张春霞 《食品安全质量检测学报》2018,9(11):2762-2766
食品行业的安全问题一直是大众关心的焦点。在食品行业的发展中,化学添加剂被越来越多地应用到食品中,这加剧了食品化学污染程度,给人们的身体健康带来潜在危害。因此,对食品中的化学污染物进行检测是食品工程研究的重要领域,如何快速、高效地对食品化学污染物进行检测是社会各界十分关注的问题。本文介绍了多种仪器分析方法在食品化学污染物检测中的应用,对不同类型检测方法的应用原理和结论加以阐述,并对食品化学污染物检测进行展望,有助于促进食品安全检测方法的研究。 相似文献
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随着科技的发展,食品的种类越来越丰富,随之而来的问题是食品中引入的污染物也越来越复杂,这使得食品安全成为当今全球关注的一个重要话题,快速有效地检测食品中污染物已然成为食品检测的热点.表面增强拉曼光谱(surface-enhanced Raman spectroscopy,SERS)由于其极高的灵敏度、快速检测、指纹图谱... 相似文献