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Inactivation of Listeria monocytogenes through the synergistic interaction between plasma-activated water and organic acid by Sunna Jyung; Jun-Won Kang; Dong-Hyun Kang is a Agricultural and Biological Sciences article available to read on EtoBox.

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This study observed that when plasma-activated water (PAW) was combined with organic acid, it showed a synergistic inactivation effect on Listeria monocytogenes, which is highly resistant to PAW. When comparing various organic acids, lactic acid (LA) showed the greatest synergistic effect, followed by malic acid (MA), citric acid (CA), and acetic acid (AA), whereas propionic acid (PA) did not show a synergistic effect. Organic acid lowered the activity of ROS defense enzymes (catalase, superoxide dismutase) by reducing intracellular pH (pHi), which induced the increase in the accumulation of ROS of PAW within the cell. In the end, the synergistic inactivation effect appeared as the increased occurrence of oxidative damage when organic acid was combined as a series of preceding causes. In this case, LA with the greatest ability to lower the pH induced the greatest synergistic effect, suggesting that LA is the best candidate to be combined with PAW. As a result of observing changes in inactivation activity for L. monocytogenes of PAW combined with 1.0% LA while storing at − 80, −20, 4, 25, & 37 °C for 30 days, respectively, it was confirmed that the lower the temperature, the lower t

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Author

Sunna Jyung; Jun-Won Kang; Dong-Hyun Kang

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)