Emerging techniques in food science: the resistance of chlorpyrifos pesticide pollution against arc and dielectric barrier discharge plasma

Abstract

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 con-centration 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.

Application of Pinhole Plasma Jet Activated Water against Escherichia coli, Colletotrichum gloeosporioides, and Decontamination of Pesticide Residues on Chili (Capsicum annuum L.)

“…The degradation pathway ( Figure 3 ) of carbendazim by ˙OH has been proposed by Bojanowska-Czajka et al [ 49 ]. Some chemical bonds of pesticides were broken by reactions from free radicals, resulting in less harmful or harmless compounds [ 50 ]. In the case of the carbendazim degradation mechanism, the ˙OH is the active radical that attack the aromatic ring and the hydrogen atoms of the methoxy group [ 51 ].…”

Optimization of ultrasound processing parameters for preservation of matured coconut water using a central composite design

“…Several novel nonthermal technologies, such as cold plasma (Dong et al, 2021;Gavahian et al, 2020), ultraviolet light, ozone, pulsed light (PL), ultrasound, pulsed electric fields, high-pressure processing (HPP), high-pressure homogenization, ionizing radiation, and ozone (Kongruang and Kleesuwan, 2020), have been tried for extending the shelf life of fruit juices. Choosing an appropriate processing technique must be considered keeping in view the biological and chemical safety of final products (Mousavi Khaneghah, 2021).…”

The efficiency of various household processing for removing chlorpyrifos and cypermethrin in Chinese kale and Pakchoi

“…There are common household processes to modern techniques to help eliminate pesticides as cold plasma, ozone, high hydrostatic pressure, etc. Mohsen Gavahian et al, (2020) reported that cold plasma is a new technique that facilitates the decomposition of food contaminants and can decompose a variety of pesticides such as parathion, paraoxon, omethoate, dichlorvos, malathion, azoxystrobin, cyprodinil, fludioxonil, cypermethoate. and chlorpyrifos effectively.…”