The Combined Antibacterial Mechanism of Ferulic Acid and ε-Polylysine Hydrochloride in <i>Shewanella putrefaciens</i> and the Effect of Their Application on the Storage Quality of Refrigerated Crayfish (<i>Procambarus clarkii</i>) with Plasma-Activated Water
This study aimed to investigate the mechanism underlying the synergistic antimicrobial effect of ferulic acid (FA) and ε-polylysine hydrochloride (PL) on Shewanella putrefaciens (<i>S. putrefaciens</i>) and their application on crayfish (<i>Procambarus clarkii</i>). The treat...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-05-01
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| Series: | Foods |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-8158/14/11/1942 |
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| Summary: | This study aimed to investigate the mechanism underlying the synergistic antimicrobial effect of ferulic acid (FA) and ε-polylysine hydrochloride (PL) on Shewanella putrefaciens (<i>S. putrefaciens</i>) and their application on crayfish (<i>Procambarus clarkii</i>). The treatment with FA and PL exhibited a strong synergistic inhibitory effect against S. putrefaciens. The combination of 1/4 Minimum Inhibitory Concentration (MIC) FA and 1/4 MIC PL was the most effective, damaging the cell structure and inhibiting the growth of <i>S. putrefaciens</i>. Plasma-activated water (PAW) can induce microbial inactivation through physical action. In addition, treatments with FA, PL, PAW, PAW-FA, PAW-PL, and PAW + PL-FA substantially decreased total viable counts (TVCs), total volatile base nitrogen (TVB-N), the thiobarbituric acid value (TBA), and the juice loss rate of crayfish, with FA-PL showing the best effect. This study confirmed the antimicrobial efficacy of PL, FA, and PAW, indicating their potential as effective preservatives for controlling spoilage in freshwater crustaceans. |
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| ISSN: | 2304-8158 |