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Article

Bioactive Films Containing Alginate-Pectin Composite Microbeads with Lactococcus lactis subsp. lactis: Physicochemical Characterization and Antilisterial Activity

by
Mariam Bekhit
1,
Elmira Arab-Tehrany
1,
Cyril J.F. Kahn
1,
Franck Cleymand
2,
Solenne Fleutot
2,
Stephane Desobry
1 and
Laura Sánchez-González
1,*
1
Laboratoire d’Ingénierie des Biomolécules (LIBio), ENSAIA-Université de Lorraine, 2 Avenue de la Forêt de Haye, TSA 40602, 54518 Vandœuvre-lès-Nancy CEDEX, France
2
Institut Jean Lamour (UMR CNRS 7198), Université de Lorraine, Parc de Saurupt, 54011 Nancy CEDEX, France
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2018, 19(2), 574; https://doi.org/10.3390/ijms19020574
Submission received: 23 January 2018 / Revised: 5 February 2018 / Accepted: 7 February 2018 / Published: 14 February 2018
(This article belongs to the Special Issue Advanced Biomaterials for Food Edible Coatings)
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Abstract

Novel bioactive films were developed from the incorporation of Lactococcus lactis into polysaccharide films. Two different biopolymers were tested: cellulose derivative (hydroxylpropylmethylcellulose (HPMC)) and corn starch. Lactic acid bacteria (LAB) free or previously encapsulated in alginate-pectin composite hydrogel microbeads were added directly to the film forming solution and films were obtained by casting. In order to study the impact of the incorporation of the protective culture into the biopolymer matrix, the water vapour permeability, oxygen permeability, optical and mechanical properties of the dry films were evaluated. Furthermore, the antimicrobial effect of bioactive films against Listeria monocytogenes was studied in synthetic medium. Results showed that the addition of LAB or alginate-pectin microbeads modified slightly films optical properties. In comparison with HPMC films, starch matrix proves to be more sensitive to the addition of bacterial cells or beads. Indeed, mechanical resistance of corn starch films was lower but barrier properties were improved, certainly related to the possible establishment of interactions between alginate-pectin beads and starch. HPMC and starch films containing encapsulated bioactive culture showed a complete inhibition of listerial growth during the first five days of storage at 5 °C and a reduction of 5 logs after 12 days.
Keywords: biopolymer; hydrogel microbeads; corn starch; hydroxypropylmethylcellulose; mechanical properties biopolymer; hydrogel microbeads; corn starch; hydroxypropylmethylcellulose; mechanical properties

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MDPI and ACS Style

Bekhit, M.; Arab-Tehrany, E.; Kahn, C.J.F.; Cleymand, F.; Fleutot, S.; Desobry, S.; Sánchez-González, L. Bioactive Films Containing Alginate-Pectin Composite Microbeads with Lactococcus lactis subsp. lactis: Physicochemical Characterization and Antilisterial Activity. Int. J. Mol. Sci. 2018, 19, 574. https://doi.org/10.3390/ijms19020574

AMA Style

Bekhit M, Arab-Tehrany E, Kahn CJF, Cleymand F, Fleutot S, Desobry S, Sánchez-González L. Bioactive Films Containing Alginate-Pectin Composite Microbeads with Lactococcus lactis subsp. lactis: Physicochemical Characterization and Antilisterial Activity. International Journal of Molecular Sciences. 2018; 19(2):574. https://doi.org/10.3390/ijms19020574

Chicago/Turabian Style

Bekhit, Mariam, Elmira Arab-Tehrany, Cyril J.F. Kahn, Franck Cleymand, Solenne Fleutot, Stephane Desobry, and Laura Sánchez-González. 2018. "Bioactive Films Containing Alginate-Pectin Composite Microbeads with Lactococcus lactis subsp. lactis: Physicochemical Characterization and Antilisterial Activity" International Journal of Molecular Sciences 19, no. 2: 574. https://doi.org/10.3390/ijms19020574

APA Style

Bekhit, M., Arab-Tehrany, E., Kahn, C. J. F., Cleymand, F., Fleutot, S., Desobry, S., & Sánchez-González, L. (2018). Bioactive Films Containing Alginate-Pectin Composite Microbeads with Lactococcus lactis subsp. lactis: Physicochemical Characterization and Antilisterial Activity. International Journal of Molecular Sciences, 19(2), 574. https://doi.org/10.3390/ijms19020574

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