Antimicrobial and physical properties of edible chitosan films enhanced by lactoperoxidase system

Cissé Mohamed, Kouakou Amenan Clémentine, Montet Didier, Loiseau Gérard, Ducamp-Collin Marie-Noelle. 2013. Antimicrobial and physical properties of edible chitosan films enhanced by lactoperoxidase system. Food Hydrocolloids, 30 (2) : 576-580.

https://doi.org/10.1016/j.foodhyd.2012.07.018

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Quartile : Q1, Sujet : CHEMISTRY, APPLIED / Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY

Résumé : Effects of lactoperoxidase system (LPOS) incorporated directly into chitosan films at different concentrations (0.5, 1 and 1.5%) were studied. Films obtained were tested on the inhibition of phytopathogenic strains such as Xanthomonas campestris pv. Mangifera indica, Colletotrichum gloeosporioides (C. 64, C. 4612 and C. 62) and Lasiodiplodia theobromae ngr 05A.Water vapor permeability and mechanical properties of films with LPOS and/or not iodine were also studied. Antibacterial effect obtained by disc diameter technique indicated that chitosan concentration at 1 and 1.5% (w/w) incorporated with LPOS and/or not iodine inhibited higher X. campestris pv. M. indica than chitosan film alone or at low concentrated of 0.5% incorporated by LPOS. The antimicrobial technique using puncture gave very good information on the antifungal effect and on the variability in susceptibility of strains of fungi. C. gloeosporioides C64 and L. theobromae were inhibited completely by 1 and 1.5% chitosan incorporated by LPOS contained or not iodine, while C. gloeosporioides C4612 was sensitive to the presence of iodine and C62 were resistant strains. The properties of chitosan films were not significantly changed by the incorporation of the enzyme system.

Mots-clés Agrovoc : matériau de conditionnement, chitosane, lactopéroxydase, propriété antimicrobienne, Xanthomonas campestris, Glomerella cingulata, Botryodiplodia theobromae, mangue, film comestible

Mots-clés géographiques Agrovoc : France

Mots-clés complémentaires : Film (matériau), Lasiodiplodia theobromae, Colletotrichum gloeosporioides

Classification Agris : Q02 - Traitement et conservation des produits alimentaires
J11 - Manutention, transport, stockage et conservation des produits d'origine végétale

Champ stratégique Cirad : Axe 3 (2005-2013) - Alimentation accessible et de qualité

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