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The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against Escherichia coli and Bacillus cereus on Dried Laver (Porphyra tenera)
This study investigated the effects of atmospheric dielectric barrier discharge (DBD) plasma (1.1 kV, 43 kHz, 5–30 min, N(2): 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...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7466277/ https://www.ncbi.nlm.nih.gov/pubmed/32731394 http://dx.doi.org/10.3390/foods9081013 |
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author | Kim, Ji Yoon Jeon, Eun Bi Choi, Man-Seok Choi, Eun Ha Lim, Jun Sup Choi, Jinsung Park, Shin Young |
author_facet | Kim, Ji Yoon Jeon, Eun Bi Choi, Man-Seok Choi, Eun Ha Lim, Jun Sup Choi, Jinsung Park, Shin Young |
author_sort | Kim, Ji Yoon |
collection | PubMed |
description | This study investigated the effects of atmospheric dielectric barrier discharge (DBD) plasma (1.1 kV, 43 kHz, 5–30 min, N(2): 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 (R(2) = 0.95) and first-order kinetics for B. cereus (R(2) = 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. |
format | Online Article Text |
id | pubmed-7466277 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-74662772020-09-14 The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against Escherichia coli and Bacillus cereus on Dried Laver (Porphyra tenera) Kim, Ji Yoon Jeon, Eun Bi Choi, Man-Seok Choi, Eun Ha Lim, Jun Sup Choi, Jinsung Park, Shin Young Foods Article This study investigated the effects of atmospheric dielectric barrier discharge (DBD) plasma (1.1 kV, 43 kHz, 5–30 min, N(2): 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 (R(2) = 0.95) and first-order kinetics for B. cereus (R(2) = 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. MDPI 2020-07-28 /pmc/articles/PMC7466277/ /pubmed/32731394 http://dx.doi.org/10.3390/foods9081013 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kim, Ji Yoon Jeon, Eun Bi Choi, Man-Seok Choi, Eun Ha Lim, Jun Sup Choi, Jinsung Park, Shin Young The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against Escherichia coli and Bacillus cereus on Dried Laver (Porphyra tenera) |
title | The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against Escherichia coli and Bacillus cereus on Dried Laver (Porphyra tenera) |
title_full | The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against Escherichia coli and Bacillus cereus on Dried Laver (Porphyra tenera) |
title_fullStr | The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against Escherichia coli and Bacillus cereus on Dried Laver (Porphyra tenera) |
title_full_unstemmed | The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against Escherichia coli and Bacillus cereus on Dried Laver (Porphyra tenera) |
title_short | The Efficiency of Atmospheric Dielectric Barrier Discharge Plasma against Escherichia coli and Bacillus cereus on Dried Laver (Porphyra tenera) |
title_sort | efficiency of atmospheric dielectric barrier discharge plasma against escherichia coli and bacillus cereus on dried laver (porphyra tenera) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7466277/ https://www.ncbi.nlm.nih.gov/pubmed/32731394 http://dx.doi.org/10.3390/foods9081013 |
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