霉菌毒素检测范式:未来的挑战与机遇

Mycotoxin Testing Paradigm: Challenges and Opportunities for the Future.

作者信息

Renaud Justin B, Miller J David, Sumarah Mark W

机构信息

Agriculture and Agri-Food Canada, London Research and Development Centre, London N5V 4T3, ON, Canada.

Carleton University, Department of Chemistry, Ottawa K1S 5B6, ON, Canada.

出版信息

J AOAC Int. 2019 Nov 1;102(6):1681-1688. doi: 10.5740/jaoacint.19-0046. Epub 2019 Apr 19.

Abstract

Mycotoxins are one of the great global challenges to agri-food and feed safety. Industry requires fast, reliable, and economical testing methods for the most important regulated mycotoxins to manage this problem. Climate change and changes in agricultural practice are complicating this situation, triggering the movement of some mycotoxins into new regions, which are unprepared for their management. Modern LC-tandem MS (LC-MS/MS) instruments have addressed this analytical challenge, but such instruments are expensive and require highly qualified personnel and dedicated facilities. As a result of these limitations, traditional LC-MS/MS is not amenable for use on farms or at small to midsized processing facilities, such as a grain elevator. To address the need for on-site rapid testing, the mycotoxin community has focused on antibody-based and spectrophotometric approaches. The development of innovative technologies such as miniaturized MS would allow for the acquisition of more information on mixtures of toxins present in a sample at costs comparable to those of the existing rapid methods such as ELISA. The capital costs are higher, but it would reduce per-sample testing costs and time requirements and provide better value for money while maintaining the accuracy and selectivity achieved in a laboratory setting. In this article, we review the available techniques and contrast them in the context of three main criteria: method performance, speed of analysis, and cost. We define the integration of these three parameters as the "mycotoxin testing paradigm."

摘要

霉菌毒素是全球农业食品和饲料安全面临的重大挑战之一。行业需要针对最重要的受监管霉菌毒素采用快速、可靠且经济的检测方法来应对这一问题。气候变化和农业实践的变化使情况变得复杂,引发了一些霉菌毒素向新区域转移,而这些区域对其管理尚无准备。现代液相色谱串联质谱(LC-MS/MS)仪器解决了这一分析难题,但此类仪器价格昂贵,需要高素质人员和专用设施。由于这些限制,传统的LC-MS/MS不适用于农场或中小型加工设施,如谷物升降机。为满足现场快速检测的需求,霉菌毒素研究领域将重点放在了基于抗体和分光光度法的方法上。诸如小型质谱等创新技术的发展,将能够以与现有快速方法(如酶联免疫吸附测定法)相当的成本获取有关样品中存在的毒素混合物的更多信息。虽然设备购置成本较高,但它将降低每个样品的检测成本和时间要求,并在保持实验室环境中所达到的准确性和选择性的同时提供更高的性价比。在本文中,我们回顾了现有的技术,并在三个主要标准的背景下对它们进行了对比:方法性能、分析速度和成本。我们将这三个参数的整合定义为“霉菌毒素检测范式”。

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