Antibacterial mechanism of action of crude plantaricin LP21-2 against Escherichia coli and its potential application in yak milk

Jiang, Yu-Hang; Zhao, Yu-Ting; Liu, Chang; Tan, Han; Bu, Lin-Li; Suo, Hua-Yi

doi:10.1016/j.lwt.2024.116266

LWT

2024

DOI: 10.1016/j.lwt.2024.116266

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Antibacterial mechanism of action of crude plantaricin LP21-2 against Escherichia coli and its potential application in yak milk

Yu-Hang Jiang,

Yu-Ting Zhao,

Chang Liu

et al.

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Cited by 2 publications

References 31 publications

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Synergistic inactivation effect and mechanism of ultrasound combined with Zanthoxylum schinifolium essential oil nanoemulsions against Escherichia coli O157:H7 and its application on fresh-cut cucumber

Jiang,

Zhao,

Xin

et al. 2025

International Journal of Food Microbiology

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Synergistic inactivation effect and mechanism of ultrasound combined with Zanthoxylum schinifolium essential oil nanoemulsions against Escherichia coli O157:H7 and its application on fresh-cut cucumber

Jiang,

Zhao,

Xin

et al. 2025

International Journal of Food Microbiology

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Understanding the mechanisms behind the antibacterial activity of magnesium hydroxide nanoparticles against sulfate-reducing bacteria in sediments

Xia,

Shi,

Chen

et al. 2024

Sci Rep

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Nanomaterials, with their small size, surface characteristics, and antibacterial properties, are extensively employed across environmental, energy, biomedical, agricultural, and other industries. This study examined the antibacterial efficacy of magnesium hydroxide (Mg(OH) 2 ) nanoparticles (NPs) against sulfate-reducing bacteria (SRB) within sediments. The inhibitory effects of two types of Mg(OH) 2 NPs with distinct particle sizes (20.3 and 29.6 nm) and concentrations (0–10.0 mg/mL) were examined under optimal treatment conditions. The antibacterial mechanisms of Mg(OH) 2 NPs through direct contact and dissolution effects were determined. The results revealed a correlation between the concentration, particle size, and inhibitory activity, with the smallest NPs (20.3 nm) at the highest concentration (10.0 mg/mL) substantially reducing SRB counts from 8.77 ± 0.18 to 6.48 ± 0.13 log 10 colony forming units/mL after 6 h treatment. Treatment with high concentrations of Mg(OH) 2 NPs induced cellular damage, reduced intracellular lactate dehydrogenase activity, and elevated intracellular catalase activity and H 2 O 2 content, suggesting that the contact effect of NPs stimulated SRB. This leads to oxidative stress response and structural damage to the cell membrane, which has emerged as the primary driver of the antibacterial action of Mg(OH) 2 NPs. This study presents a novel nanomaterial that can inhibit and control SRB in natural sedimentary environments.

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Antibacterial mechanism of action of crude plantaricin LP21-2 against Escherichia coli and its potential application in yak milk

Cited by 2 publications

References 31 publications

Synergistic inactivation effect and mechanism of ultrasound combined with Zanthoxylum schinifolium essential oil nanoemulsions against Escherichia coli O157:H7 and its application on fresh-cut cucumber

Synergistic inactivation effect and mechanism of ultrasound combined with Zanthoxylum schinifolium essential oil nanoemulsions against Escherichia coli O157:H7 and its application on fresh-cut cucumber

Understanding the mechanisms behind the antibacterial activity of magnesium hydroxide nanoparticles against sulfate-reducing bacteria in sediments

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