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

Agustin S., . and Wahyuni E.T., . and Suparmo, . and Supriyadi, . and Cahyanto M.N., . (2021) Production and characterization of bacterial cellulose-alginate biocomposites as food packaging material. Food Research (Malaysia), 5. pp. 204-210. ISSN 2550-2166

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.

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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.

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Item Type:	Article
AGROVOC Term:	Bacteria
AGROVOC Term:	cellulose
AGROVOC Term:	food packaging
AGROVOC Term:	fermentation
AGROVOC Term:	electron microscopy
AGROVOC Term:	spectroscopy
AGROVOC Term:	fibres
AGROVOC Term:	porosity
Geographical Term:	Indonesia
Depositing User:	Mr. Khoirul Asrimi Md Nor
Date Deposited:	27 Nov 2025 11:29
Last Modified:	01 Dec 2025 03:53
URI:	http://webagris.upm.edu.my/id/eprint/3188

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