Production and characterization of bacterial cellulose-alginate biocomposites as food packaging material

Agustin, S. and Wahyuni, E.T. and Suparmo, Suparmo and Supriyadi, Supriyadi and Cahyanto, M.N. (2021) Production and characterization of bacterial cellulose-alginate biocomposites as food packaging material. Food Research, 5 (6). 204 – 210. ISSN 25502166

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Abstract

Biocomposite of bacterial cellulose-alginate has been developed for use as food packaging material. This study aims to understand the physical and mechanical properties of the biocomposite produced from static fermentation of Gluconacetobacter xylinus InaCC B404 in media supplemented with alginate. The strain was grown in a medium containing alginate at a concentration of 0.4, 0.8, and 1.2 w/v at 30oC for 7 days. The SEM images showed that bacterial cellulose produced in a medium supplemented with alginate had a denser structure of fibril network and a smaller pore size than the control one. The structure change was due to interactions through hydrogen bonds between bacterial cellulose and alginate proven by FTIR spectra, resulting in a decrease in crystallinity and crystallite size of bacterial cellulose. It led to the decrease in tensile and tear strength of the resulting biocomposite. Alginate also causes biocomposite to have higher water vapour permeability values. © 2021 The Authors. Published by Rynnye Lyan Resources.

Item Type: Article
Additional Information: Cited by: 1; All Open Access, Gold Open Access
Uncontrolled Keywords: alginic acid; cellulose; Article; bacterial growth; bacterium culture; biomechanics; crystallization; fibril; food packaging; Fourier transform infrared spectroscopy; Gluconacetobacter xylinus; hydrogen bond; morphology; nonhuman; opacity; permeability; physical parameters; pore size; scanning electron microscopy; tensile strength; thermal analysis; vapor pressure; water vapor; X ray diffraction
Subjects: T Technology > TP Chemical technology > Food processing and manufacture
Divisions: Faculty of Agricultural Technology > Food and Agricultural Product Technology
Depositing User: Sri JUNANDI
Date Deposited: 25 Oct 2024 08:38
Last Modified: 25 Oct 2024 08:38
URI: https://ir.lib.ugm.ac.id/id/eprint/5617

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