从谷物中提取非毒素,使用agerogel @ COF复合材料,并评估紫外线和微波辐射和超声波辐射对其去污染的影响
Parvin Oroojzadeh1, Mohammad Reza Afshar Mogaddam2,3, Mohammadali Torbati1
1Department of Food Science and Technology, Faculty of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran.
一种新方法有效地从谷物样本中提取亚毒素,使用共价有机框架和石墨烯气凝复合物. 这种技术能够灵敏地检测食物中的这些有害毒素.
科学领域:
- 分析化学 分析化学
- 食品化学 食品化学
- 材料科学 材料科学 材料科学
背景情况:
- 非洲毒素是阿斯伯吉勒斯菌种产生的有毒的二次代谢物,对健康构成重大风险.
- 粮食产品,特别是谷物,被 aflatoxins 污染是一个全球性的问题.
- 准确而敏感的检测方法对于食品安全和监管合规性至关重要.
研究的目的:
- 开发和优化一种分散固相提取 (dSPE) 方法,用于提取青素.
- 评估一种新的共价有机框架和石墨烯气凝复合物作为吸收材料.
- 为了使谷物样本中B1,B2,G1和G2亚毒素的敏感测定.
主要方法:
- 使用共价有机框架和石墨烯气凝复合物的分散固体相提取.
- 使用脱离离子水和乙烯 (9:1,v/v) 的混合物进行提取.
- 高性能液体色谱-光检测 (HPLC-FLD) 用于亚拉托克辛的量化.
主要成果:
- 优化的dSPE条件证明了从谷物样本中有效提取亚毒素.
- 通过0.987到0.999.99的相关系数 (r2) 实现了高线性.
- 获得了低检测极限 (0.0090.021μg/kg) 和定量极限 (0.0320.064μg/kg).
- 提取回收率在41.7%至52.6%之间,具有良好的日内和日间精度 (RSD ≤10.2%).
结论:
- 开发的dSPE方法与HPLC-FLD相结合,适用于对食品中微量黄毒素的敏感分析.
- 体有机框架和石墨烯气凝复合物显示出作为真菌毒素分析的高效吸收材料的希望.
- 这种方法提供了一种有价值的工具,通过检测偏毒素污染来确保食品安全.
更多相关视频
08:42Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
Published on: July 10, 2017
08:48Development of a Backbone Cyclic Peptide Library as Potential Antiparasitic Therapeutics Using Microwave Irradiation
Published on: January 26, 2016
相关概念视频
Classifying Matter by Composition
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview
Composite Bodies
Composite bodies have widespread applications in mechanical engineering, from automobiles to aircraft to rockets. For example, an automobile wheel comprises...
Composition of Blood
Formed elements constitute the remaining 45% of the blood volume. These...
Composition of Body Fluids
Moments of Inertia for Composite Areas
The second moment of area, also known as the moment of inertia, measures a structure's resistance to bending. It is calculated by...
