文章基本信息

标题：The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against Escherichia coli and Bacillus cereus on Dried Laver (Porphyra tenera)
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作者：Ji Yoon Kim ; Eun Bi Jeon ; Man-Seok Choi 等
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2020
卷号：9
期号：8
页码：1013-1023
DOI：10.3390/foods9081013
出版社：MDPI Publishing
摘要：This study investigated the effects of atmospheric dielectric barrier discharge (DBD) plasma (1.1 kV, 43 kHz, 5–30 min, N2: 1.5 L/m) on the reduction of Escherichia coli and Bacillus cereus on dried laver. The reductions of E. coli and B. cereus by 5, 10, 20, and 30 min of DBD plasma were 0.56 and 0.24, 0.61 and 0.66, 0.76 and 1.24, and 1.02 and 1.38 log CFU/g, respectively. The D-value of E. coli and B. cereus was predicted as 29.80 and 20.53 min, respectively, using the Weibull model for E. coli (R2 = 0.95) and first-order kinetics for B. cereus (R2 = 0.94). After DBD plasma 5–30 min treatment, there was no change in pH (6.20–6.21) and this value was higher than the untreated dried laver (6.08). All sensory scores in DBD plasma-treated laver were determined as >6 points. The 30 min of DBD plasma is regarded as a novel intervention for the control of potential hazardous bacteria in dried laver.
关键词：dried laver; DBD plasma; Escherichia coli ; Bacillus cereus ; quality dried laver ; DBD plasma ; Escherichia coli ; Bacillus cereus ; quality