Novel green hydrogel material using bacterial cellulose
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Publication Details
Author list: Chaiyasat A., Jearanai S., Moonmangmee S., Moonmangmee D., Christopher L.P., Alam M.N., Chaiyasat P.
Publisher: Oriental Scientific Publishing Company
Publication year: 2018
Volume number: 34
Issue number: 4
Start page: 1735
End page: 1740
Number of pages: 6
ISSN: 0970-020X
eISSN: 0970-020X
Languages: English-Great Britain (EN-GB)
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Abstract
The green bacterial cellulose (BC)-based hydrogel materials have successfully prepared by modification and crosslink BC. BC was derived from acetic acid bacteria isolated and selected from ripe fruits. The production of BC was performed by fermentation in various media. It was found that using liquid potato medium represented the highest thickness of BC film (0.80 cm) with 2 wt% solid content covered the media. To reduce the crystallization of BC, carboxyl group was introduced into BC chains using a carboxymethylation reaction giving carboxymethyl BC (CMBC) and subsequently crosslinked with divinyl sulfone (DVS). The extent of crosslinking influenced on the swelling properties of the hydrogels. Using large DVS amounts (>30 wt%-of CMBC), dense macromolecular network with less capacity spaces in the hydrogel was formed. The maximum water retention value of green hydrogels containing ~3.0 mmol carboxyl groups/g CMBC reached 27 (g/g). ฉ 2018 Oriental Scientific Publishing Company. All Rights Reserved.
Keywords
Bacterial cellulose, Carboxymethyl bacterial cellulose, Hydrogel material
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