Antibacterial activity of plasma-treated polypropylene membrane functionalized with living Carnobacterium divergens in cold-smoked salmon - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Food Control Année : 2022

Antibacterial activity of plasma-treated polypropylene membrane functionalized with living Carnobacterium divergens in cold-smoked salmon

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In recent years, bacteriocins produced by lactic acid bacteria (LAB) have shown great potential for food safety preservation, especially for ready-to-eat products. In this study, bio-protective membrane was made from plasma-treated polypropylene film and functionalized with Carnobacterium divergens V41 (bacteriocin-producing strain) for the purpose of inhibiting Listeria monocytogenes growth in culture media and cold-smoked salmon (CSS) at refrigerated temperatures. In semi solid Brain Heart Infusion (BHI) agar, bio-protective plastic membrane led to a 3-Log reduction in L. monocytogenes count compared to the control, after 14 days of aerobic incubation at 8 °C. In vacuum-packed CSS, L. monocytogenes growth was inhibited by bio-protective plastic membrane after 7 days of storage at 4 °C and 21 days at 8 °C. Antilisterial activity of plastic membrane was even better than C. divergens cells added in CSS by direct spraying. Stability test has shown that bio-protective plastic membrane stored for 42 days at 4 °C still exerted antimicrobial activity against L. monocytogenes on BHI agar (2-Log reduction compared to the control). These preliminary results demonstrate that bio-protective plastic membrane can be used to control pathogenic bacteria in food products with potential industrial development.
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hal-04203747 , version 1 (22-07-2024)

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Ngoc Thanh Xuan Nguyen, Philippe Daniel, Jean-François Pilard, Ronan Cariou, Frederique Gigout, et al.. Antibacterial activity of plasma-treated polypropylene membrane functionalized with living Carnobacterium divergens in cold-smoked salmon. Food Control, 2022, 137, pp.108903. ⟨10.1016/j.foodcont.2022.108903⟩. ⟨hal-04203747⟩
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