食品科学中的新兴技术:毒死蜱农药污染对电弧和介质阻挡放电等离子体的抗性

IF 4.6 3区 农林科学 Q1 FOOD SCIENCE & TECHNOLOGY
Mohsen Gavahian, Tsai Meng‐Jen, Amin Mousavi Khaneghah
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引用次数: 14

摘要

许多研究将冷等离子体作为一种新型有效的处理技术引入食品和水的微生物净化以及去除农药等环境污染。然而,由于有几种类型的等离子体设计,应探索其在降解主要农药残留方面的功效,如毒死蜱(作为一种危险化学品)。本研究旨在评估8min电弧和介质阻挡放电(DBD)等离子体对浓度为2mg·L-1的毒死蜱农药水样的去污效果。通过液相色谱-质谱法(LC-MS)评估血浆处理的样品,并将其与对照(未处理)样品进行比较。此外,还研究了等离子体处理对样品某些物理性质的影响。根据结果,等离子体处理的样品显示出与未处理样品相似的物理特性(例如折射率和颜色值)。虽然样品的温度在DBD等离子体处理过程中保持稳定,但电弧等离子体以约3.75°C·min–1的速率改变了样品的温度,并产生了最终温度为60°C的样品。然而,与人们普遍认为等离子体是一种有效的农药降解技术相反,化学分析表明,在本研究所用的条件下,毒死蜱对电弧等离子体和DBD等离子体都具有很高的抗性。因此,应考虑农药污染对这一新兴技术具有高抗性的可能性。此外,还需要进一步研究所选等离子体系统在工业规模上去除农药污染的效率(例如,在水和废水处理过程中)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Emerging techniques in food science: the resistance of chlorpyrifos pesticide pollution against arc and dielectric barrier discharge plasma
Many studies introduced cold plasma as a novel and effective processing technology for microbial decontamination of food and water as well as for the removal of environmental pollution such as pesticide. However, as there are several types of plasma designs, their efficacy in degrading major pesticide residues, such as chlorpyrifos (as a hazardous chemical), should be explored. This study was conducted to assess the decontamination efficacy of 8 min of arc and dielectric barrier discharge (DBD) plasma on chlorpyrifos pesticide-water samples at a concentration of 2 mg·L-1. The plasma-treated samples were assessed by liquid chromatography-mass spectrometry (LC-MS) and compared with the control (untreated) sample. In addition, the effects of plasma processes on some physical properties of samples were studied. According to the results, plasma-treated samples showed similar physical characteristics (e.g., refractive index and color values) to those of the untreated samples. While the temperature of the samples remained steady during the DBD plasma treatment, arc plasma changed the temperature of the sample at a rate of about 3.75°C·min–1 and yielded a sample with a final temperature of 60°C. However, contrary to the general belief that plasma is an efficient technique for pesticide degradation, chemical analyses showed high resistance of chlorpyrifos against both arc and DBD plasma under the conditions used in the present study. Therefore, the possibility of high resistance of pesticide pollution to this emerging technology should be considered. Also, further studies on the efficiency of the selected plasma system for removing pesticide pollution (e.g., during water and wastewater treatment) at industrial scale is needed.
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来源期刊
CiteScore
4.60
自引率
7.50%
发文量
61
审稿时长
1 months
期刊介绍: ''Quality Assurance and Safety of Crops & Foods'' is an international peer-reviewed journal publishing research and review papers associated with the quality and safety of food and food sources including cereals, grains, oilseeds, fruits, root crops and animal sources. It targets both primary materials and their conversion to human foods. There is a strong focus on the development and application of new analytical tools and their potential for quality assessment, assurance, control and safety. The scope includes issues of risk assessment, traceability, authenticity, food security and socio-economic impacts. Manuscripts presenting novel data and information that are likely to significantly contribute to scientific knowledge in areas of food quality and safety will be considered. ''Quality Assurance and Safety of Crops & Foods'' provides a forum for all those working in the specialist field of food quality and safety to report on the progress and outcomes of their research.
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