Ar plasma jet treatment delay sprouting and maintains quality of potato tubers(Solanum tuberosum L.)by enhancing antioxidant capacity  

作　　者：Xiaonan Yang Jiutao An Xiangyou Wang Liang Wang Pengcheng Song Jie Huang 

机构地区：[1]School of Agricultural Engineering and Food Science,Shandong University of Technology,Zibo,255000,China [2]College of Resources and Environment Engineering,Shandong University of Technology,Zibo,250049,China

出　　处：《Food Bioscience》2023年第1期455-463,共9页食品生物科学（英文）

基　　金：Science Foundation of China under Grant No.31972144;Natural Science Foundation of Shandong Province(Grant Nos.ZR2020QC244).

摘　　要：A plasma jet containing a dielectric barrier structure was used to treat potato eyes at 1.8 slm for different treatment times to inhibit the sprouting of tubers.The changes in the potato germination rate and related indices during the 16-day storage period after treatment were determined.The effects of the plasma treatment on weight loss rate,reducing sugar content,and surface microstructure of potatoes were also investigated.The results showed that the germination rates of potatoes in the 20 s and 40 s treatments were significantly lower than that in the control treatment.However,scanning electron microscopy showed that the plasma damage to the potato gradually deepened as treatment time was increased,and the plasma treatment caused irreversible damage when the treatment time was 40 s.The 20 s treatment significantly increased superoxide dismutase and catalase activities and inhibited the accumulation of reactive oxygen species(ROS)in potatoes,compared to the other treatments.The 20 s treatment improved the content of total phenolic flavonoids to enhance the antioxidant capacity of the potato tubers and maintain their quality.Therefore,the plasma jet treatment improved the ROS scavenging ability of potatoes and effectively inhibited potato sprouting during storage.

关 键 词：POTATO Plasma jet Sprout suppression SEM ROS 

分 类 号：S532[农业科学—作物学]