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KMID : 1024520110200070899
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Journal of the Environmental Sciences
2011 Volume.20 No. 7 p.899 ~ p.905
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Antimicrobial Activity and Coloration of Environment-Friendly Biopolymer, Bacterial Cellulose
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Lee Na-Ri
Jeong Jin-Ha
Park Sung-Bo
Jeong Seong-Yun
Hwang Dae-Youn
Kim Hong-Sung
Son Hong-Joo
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Abstract
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In order to develop bacterial cellulose (BC) with antimicrobial activity against pathogenic microorganisms, silver and chitosan were incorporated into BC, respectively. Experiment results showed that antimicrobial activity against pathogenic microorganisms was improved with increasing silver concentration. Chitosan also showed a direct proportion between its concentration and antimicrobial activity. These results suggest that antimicrobial effects of BC using silver and chitosan are well proven to be effective. We also tested the stainability of BC with natural colorant for the application of food industry. Stainability of BC was enhanced with increasing natural colorant concentration. Decolorization of BC stained was observed by dipping it into distilled water with one hour-intervals. As a result, there was no significant difference. Combination of natural colorant-stainability and antibiosis of BC is expected to be useful in making colored antibiotic BC in various industrial application areas, considering its antimicrobial activity, high stainability and low decolorization tendency.
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KEYWORD
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Acetobacter sp., Cellulose, Antimicrobial activity, Coloration
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