Factors influencing bactericidal efficacy using atmospheric cold plasma (ACP) against Escherichia coli in wheat flour

Park, Seulki; Lee, Dong Hoon; Baik, Oon‐Doo

doi:10.1016/j.foodres.2022.111985

Cited by 7 publications

(1 citation statement)

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“…De Baerdemaeker et al [29] have come up with an innovative way of plasma mesh for the bactericidal efficacy of Salmonella Typhimurium but did not optimize the input parameters of the LTAP. Park et al [30] used a Box-Behnken model to optimize LTAP input parameters such as gas flow rate, time of exposure, weight of the sample, rotation of the base and volume of the container on the bactericidal efficacy on Escherichia coli bacteria mixed in wheat flour. However, it was not tested for different gases and the required high plasma exposure time.…”

Section: Sidhartha and Sanjay Have Equal Contributionmentioning

confidence: 99%

The quality by design approach for optimization of slayer exciter based low power portable atmospheric plasma jet on bactericidal efficacy of Pseudomonas aeruginosa

Sidhartha

Ghosh

et al. 2023

Journal of Biophotonics

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A simple, portable, economical lowtemperature atmospheric plasma (LTAP) for bactericidal efficacy of Gram-negative bacteria (Pseudomonas aeruginosa) with different carrier gases (argon, helium, and nitrogen) using the quality by design (QbD) approach, design of experiments (DoE), and response surface graphs (RSG) is presented. Box-Behnken design was used as the DoE to narrow down and further optimize the experimental factors of LTAP. Plasma exposure time, input DC voltage, and carrier gas flow rate were varied to examine the bactericidal efficacy using the zone of inhibition (ZOI). A higher bactericidal efficacy was achieved under the optimal bactericidal factors having ZOI of 50.837 ± 2.418 mm 2 with the plasma power density of 132 mW/cm 3 for LTAP-Ar at 61.19 s, 14.8747 V, and 219.379 sccm than LTAP-He and LTAP-N 2 . The LTAP-Ar was further evaluated at different frequencies and probe lengths to achieve a ZOI of 58.237 ± 4.01 mm 2 .

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Section: Sidhartha and Sanjay Have Equal Contributionmentioning

confidence: 99%