The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against <i>Escherichia coli</i> and <i>Bacillus cereus</i> on Dried Laver (<i>Porphyra tenera</i>)
This study investigated the effects of atmospheric dielectric barrier discharge (DBD) plasma (1.1 kV, 43 kHz, 5–30 min, N<sub>2</sub>: 1.5 L/m) on the reduction of <i>Escherichia coli</i> and <i>Bacillus cereus</i> on dried laver. The reductions of <i>E. col...
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| Format: | Article |
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MDPI AG
2020-07-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/9/8/1013 |
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| author | Ji Yoon Kim Eun Bi Jeon Man-Seok Choi Eun Ha Choi Jun Sup Lim Jinsung Choi Shin Young Park |
| author_facet | Ji Yoon Kim Eun Bi Jeon Man-Seok Choi Eun Ha Choi Jun Sup Lim Jinsung Choi Shin Young Park |
| author_sort | Ji Yoon Kim |
| collection | DOAJ |
| description | This study investigated the effects of atmospheric dielectric barrier discharge (DBD) plasma (1.1 kV, 43 kHz, 5–30 min, N<sub>2</sub>: 1.5 L/m) on the reduction of <i>Escherichia coli</i> and <i>Bacillus cereus</i> on dried laver. The reductions of <i>E. coli</i> and <i>B. cereus</i> 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 <i>E. coli</i> and <i>B. cereus</i> was predicted as 29.80 and 20.53 min, respectively, using the Weibull model for <i>E. coli</i> (R<sup>2</sup> = 0.95) and first-order kinetics for <i>B. cereus</i> (R<sup>2</sup> = 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. |
| first_indexed | 2024-03-10T18:09:50Z |
| format | Article |
| id | doaj.art-250af12123d247d98dd6d25db0e113a0 |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-10T18:09:50Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-250af12123d247d98dd6d25db0e113a02023-11-20T08:10:54ZengMDPI AGFoods2304-81582020-07-0198101310.3390/foods9081013The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against <i>Escherichia coli</i> and <i>Bacillus cereus</i> on Dried Laver (<i>Porphyra tenera</i>)Ji Yoon Kim0Eun Bi Jeon1Man-Seok Choi2Eun Ha Choi3Jun Sup Lim4Jinsung Choi5Shin Young Park6Institute of Marine Industry, Gyeongsang National University, Tongyeong 53064, KoreaInstitute of Marine Industry, Gyeongsang National University, Tongyeong 53064, KoreaInstitute of Marine Industry, Gyeongsang National University, Tongyeong 53064, KoreaDepartment of Electrical and Biological Physics, Plasma Bioscience Research Center, Kwangwoon University, Seoul 01987, KoreaDepartment of Electrical and Biological Physics, Plasma Bioscience Research Center, Kwangwoon University, Seoul 01987, KoreaDepartment of Electrical and Biological Physics, Plasma Bioscience Research Center, Kwangwoon University, Seoul 01987, KoreaInstitute of Marine Industry, Gyeongsang National University, Tongyeong 53064, KoreaThis study investigated the effects of atmospheric dielectric barrier discharge (DBD) plasma (1.1 kV, 43 kHz, 5–30 min, N<sub>2</sub>: 1.5 L/m) on the reduction of <i>Escherichia coli</i> and <i>Bacillus cereus</i> on dried laver. The reductions of <i>E. coli</i> and <i>B. cereus</i> 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 <i>E. coli</i> and <i>B. cereus</i> was predicted as 29.80 and 20.53 min, respectively, using the Weibull model for <i>E. coli</i> (R<sup>2</sup> = 0.95) and first-order kinetics for <i>B. cereus</i> (R<sup>2</sup> = 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.https://www.mdpi.com/2304-8158/9/8/1013dried laverDBD plasma<i>Escherichia coli</i><i>Bacillus cereus</i>quality |
| spellingShingle | Ji Yoon Kim Eun Bi Jeon Man-Seok Choi Eun Ha Choi Jun Sup Lim Jinsung Choi Shin Young Park The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against <i>Escherichia coli</i> and <i>Bacillus cereus</i> on Dried Laver (<i>Porphyra tenera</i>) Foods dried laver DBD plasma <i>Escherichia coli</i> <i>Bacillus cereus</i> quality |
| title | The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against <i>Escherichia coli</i> and <i>Bacillus cereus</i> on Dried Laver (<i>Porphyra tenera</i>) |
| title_full | The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against <i>Escherichia coli</i> and <i>Bacillus cereus</i> on Dried Laver (<i>Porphyra tenera</i>) |
| title_fullStr | The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against <i>Escherichia coli</i> and <i>Bacillus cereus</i> on Dried Laver (<i>Porphyra tenera</i>) |
| title_full_unstemmed | The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against <i>Escherichia coli</i> and <i>Bacillus cereus</i> on Dried Laver (<i>Porphyra tenera</i>) |
| title_short | The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against <i>Escherichia coli</i> and <i>Bacillus cereus</i> on Dried Laver (<i>Porphyra tenera</i>) |
| title_sort | efficiency of atmospheric dielectric barrier discharge plasma against i escherichia coli i and i bacillus cereus i on dried laver i porphyra tenera i |
| topic | dried laver DBD plasma <i>Escherichia coli</i> <i>Bacillus cereus</i> quality |
| url | https://www.mdpi.com/2304-8158/9/8/1013 |
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