Antimicrobial Activity and Coloration of Environment-Friendly Biopolymer, Bacterial Cellulose

환경친화적 바이오폴리머인 세균 섬유소의 항균활성과 염색성

  • Lee, Na-Ri (College of Natural Resources and Life Science, Pusan National University) ;
  • Jeong, Jin-Ha (College of Natural Resources and Life Science, Pusan National University) ;
  • Park, Sung-Bo (College of Natural Resources and Life Science, Pusan National University) ;
  • Jeong, Seong-Yun (Department of Medical Life Science, Catholic University of Daegu) ;
  • Hwang, Dae-Youn (College of Natural Resources and Life Science, Pusan National University) ;
  • Kim, Hong-Sung (College of Natural Resources and Life Science, Pusan National University) ;
  • Son, Hong-Joo (College of Natural Resources and Life Science, Pusan National University)
  • 이나리 (부산대학교 생명자원과학대학) ;
  • 정진하 (부산대학교 생명자원과학대학) ;
  • 박성보 (부산대학교 생명자원과학대학) ;
  • 정성윤 (대구가톨릭대학교 의생명과학과) ;
  • 황대연 (부산대학교 생명자원과학대학) ;
  • 김홍성 (부산대학교 생명자원과학대학) ;
  • 손홍주 (부산대학교 생명자원과학대학)
  • Received : 2011.04.22
  • Accepted : 2011.06.14
  • Published : 2011.07.31


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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