Effect of low-temperature plasma on the degradation of omethoate residue and quality of apple and spinach

Xingmin SHI (石兴民); Jinren LIU (刘进仁); Guimin XU (许桂敏); Yueming WU (吴月明); Lingge GAO (高菱鸽); Xiaoyan LI (李晓艳); Yang YANG (杨阳); Guanjun ZHANG (张冠军)

doi:10.1088/2058-6272/aa9b78

Plasma Science and Technology > 2018 > 20(4): 44004-044004. > DOI: 10.1088/2058-6272/aa9b78

Xingmin SHI (石兴民), Jinren LIU (刘进仁), Guimin XU (许桂敏), Yueming WU (吴月明), Lingge GAO (高菱鸽), Xiaoyan LI (李晓艳), Yang YANG (杨阳), Guanjun ZHANG (张冠军). Effect of low-temperature plasma on the degradation of omethoate residue and quality of apple and spinach[J]. Plasma Science and Technology, 2018, 20(4): 44004-044004. DOI: 10.1088/2058-6272/aa9b78

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Effect of low-temperature plasma on the degradation of omethoate residue and quality of apple and spinach

1 School of Public Health, Medical Science Center, Xi’an Jiaotong University, Xi’an 710061, People’s Republic of China 2 State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, People’s Republic of China 3 College of Nursing, Xi’an SiYuan University, Xi’an 710038, People’s Republic of China

Funds: This work was supported in part by National Natural Science Foundation of China under Grant Nos. 81372076, 51677146, 51607003 and 51521065, and the Fundamental Research Funds for the Central Universities under Grant No. xkjc2013004.

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Received Date: September 25, 2017

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Abstract

Abstract

Dielectric barrier corona discharge was developed to generate low-temperature plasma (LTP) to treat apple and spinach samples contaminated with omethoate. Experimental results showed that, after 20 min exposure, the degradation rate of omethoate residue in apple and spinach was (94.55 ± 0.01)% and (95.55 ± 0.01)%, respectively. When the treatment time was shorter than 20 min, the contents of moisture, vitamin C and beta-carotene were not affected by LTP. Exploration of related mechanisms suggested that LTP might destroy unsaturated double bonds of omethoate and produce phosphate ion, eventually leading to omethoate destruction. It is concluded that appropriate dosage of LTP can effectively degrade omethoate residue in fruits and vegetables without affecting their quality.
- DBCD plasma,
- omethoate residue,
- quality of fruits and vegetables,
- reactive oxygen and nitrogen species

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