Antibacterial activity of plasma-treated polypropylene membrane functionalized with living Carnobacterium divergens in cold-smoked salmon
| Type | Article | ||||||||||||
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| Date | 2022-07 | ||||||||||||
| Language | English | ||||||||||||
| Author(s) | Xuan Nguyen Ngoc Thanh1, 2, Daniel Philippe 1, Pilard Jean-François1, Cariou Ronan3, Gigout Frederique4, Leroi Francoise4 |
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| Affiliation(s) | 1 : Institut des Molécules et Matériaux du Mans – IMMM UMR CNRS 6283 - Le Mans University, France 2 : Nong Lam University, Ho Chi Minh city, Viet Nam 3 : Laboratoire d’Etude des Résidus et des Contaminants dans les Aliments – LABERCA - Oniris, Nantes, France 4 : Ifremer, MASAE, Laboratoire EM3B, F‐44000, Nantes, France |
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| Source | Food Control (0956-7135) (Elsevier BV), 2022-07 , Vol. 137 , P. 108903 (6p.) | ||||||||||||
| DOI | 10.1016/j.foodcont.2022.108903 | ||||||||||||
| WOS© Times Cited | 1 | ||||||||||||
| Keyword(s) | Bacteriocin, Polypropylene membrane, Plasma, Carnobacterium divergens, Listeria monocytogenes, Cold-smoked salmon | ||||||||||||
| Abstract | 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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