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Statistical Optimization of Medium Composition for Bacterial Cellulose Production by Gluconacetobacter hansenii UAC09 Using Coffee Cherry Husk Extract - an Agro-Industry Waste
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  • Statistical Optimization of Medium Composition for Bacterial Cellulose Production by Gluconacetobacter hansenii UAC09 Using Coffee Cherry Husk Extract - an Agro-Industry Waste
  • Statistical Optimization of Medium Composition for Bacterial Cellulose Production by Gluconacetobacter hansenii UAC09 Using Coffee Cherry Husk Extract - an Agro-Industry Waste
저자명
Rani. Mahadevaswamy Usha,Rastogi. Navin K.,Anu Appaiah. K.A.
간행물명
Journal of microbiology and biotechnology
권/호정보
2011년|21권 7호|pp.739-745 (7 pages)
발행정보
한국미생물생명공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

During the production of grape wine, the formation of thick leathery pellicle/bacterial cellulose (BC) at the airliquid interface was due to the bacterium, which was isolated and identified as Gluconacetobacter hansenii UAC09. Cultural conditions for bacterial cellulose production from G. hansenii UAC09 were optimized by central composite rotatable experimental design. To economize the BC production, coffee cherry husk (CCH) extract and corn steep liquor (CSL) were used as less expensive sources of carbon and nitrogen, respectively. CCH and CSL are byproducts from the coffee processing and starch processing industry, respectively. The interactions between pH (4.5-8.5), CSL (2-10%), alcohol (0.5-2%), acetic acid (0.5-2%), and water dilution rate to CCH ratio (1:1 to 1:5) were studied using response surface methodology. The optimum conditions for maximum BC production were pH (6.64), CSL (10%), alcohol (0.5%), acetic acid (1.13%), and water to CCH ratio (1:1). After 2 weeks of fermentation, the amount of BC produced was 6.24 g/l. This yield was comparable to the predicted value of 6.09 g/l. This is the first report on the optimization of the fermentation medium by RSM using CCH extract as the carbon source for BC production by G. hansenii UAC09.