Active Biopolymeric Films Inoculated with Bdellovibrio bacteriovorus, a Predatory Bacterium
Source abstract
Abstract
The objective of the present work was to evaluate novel active films made with biopolymeric matrices as carriers of a living Bdellovibrio bacteriovorus HD100 strain, a predatory bacterium with antimicrobial potentials against pathogens. Biopolymer films were prepared by a casting method using the following mixtures: collagen/sodium alginate/sorbitol (CA-S), collagen/sodium alginate/glycerol (CA-G), and tapioca starch/sodium alginate/glycerol (StA-G). The effects of the film formulations on the viability of the B. bacteriovorus was investigated by using Fourier Transform Infrared (FTIR) spectroscopy, Differential Scanning Calorimetry (DSC), and Scanning Electron Microscopy (SEM). SEM showed that Bdellovibrio bacteriovorus morphology was not altered in the polymeric films. FTIR spectroscopy provided information about the structural composition of the films. CA-S showed less reduction in the viability of B. bacteriovorus after its entrapment; thus, CA-S proved to be a better agent for the immobilization and preservation of B. bacteriovorus to enhance its predatory activities during application against Escherichia coli.
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Research context
OpenAlex topics: Microencapsulation and Drying Processes · Polysaccharides Composition and Applications · Botanical Research and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Instituto Politécnico Nacional, CBG, Blvd. del Maestro esquina Elías Piña, Col. Narciso Mendoza, Reynosa 88710, Mexico
Department of Microbiology, Osun State University, Osogbo Campus, Osogbo P.M.B. 4494, Nigeria
Instituto Politécnico Nacional, UPIITA, Academia de Ciencias Básicas, Av. Instituto Politécnico Nacional No. 2580, Col. Barrio la Laguna Ticomán, Gustavo A. Madero, Mexico City 07340, Mexico
Instituto Politécnico Nacional, CEPROBI, Carretera Yautepec Jojutla, Km. 6, Calle CeProBi No. 8, Col. San Isidro, Yautepec 62731, Mexico
Universidad Autónoma de Tamaulipas, Unidad Académica Multidisciplinaria, Reynosa Aztlán, Laboratorio de Biología Molecular, Mariano Matamoros S/N, Zona Centro, Victoria 87000, Mexico
Facultad de Biología, Universidad de Sevilla, Av. de la Reina Mercedes, 41012 Sevilla, Spain
Funding
Instituto Politécnico Nacaional
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