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KMID : 0613820090190101432
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Journal of Life Science
2009 Volume.19 No. 10 p.1432 ~ p.1437
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Pretreatment of Cane Molasses for Production of Bacterial Cellulose and Its Physico-Chemical Properties
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Jung Ho-Il
Jeong Jin-Ha
Jeon Young-Dong
Lee Na-Ri
Park Ki-Hyun
Kim Yong-Gyun
Park Geun-Tae
Son Hong-Joo
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Abstract
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The aim of this study is to investigate cane molasses pretreatments for the production of cellulose by Acetobacter sp. V6, which has excellent bacterial cellulose (BC) producing capacity in the shaking culture. Among pretreatments of cane molasses, 1% (w/v) tricalcium phosphate (TP) treatment was more efficient in BC production. The physico-chemical properties of BCs that were produced in static and shaking cultures were also investigated. Although BC had an emulsifying ability, its emulsion stability was low. Water holding capacity (WHC) of BC was high; the WHC of BC produced in static culture was 14 times higher than that of α-cellulose. In addition, the viscosity of BC was higher than that of α-cellulose. Composition analysis by FT-IR showed no difference in composition between BC and plant cellulose. In the crystallinity analysis by XRD, all BC samples showed crystallinity. All BC samples showed reticulated structures consisting of ultrafine cellulose fibriles. Microfibriles of cellulose from static culture were especially more compact than those of cellulose from shaking culture.
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KEYWORD
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Acetobacter sp., bacterial cellulose, molasses, pretreatment
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