Effect of different additives on bacterial cellulose production by Acetobacter xylinum and analysis of material property

Bacterial cellulose (BC) demonstrates unique properties including high mechanical strength, high crystallinity, and high water retention ability, which make it an useful material in many industries, such as food, paper manufacturing, and pharmaceutical application. In this study, different additives...

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Bibliographic Details
Published in:Cellulose (London) 2009-12, Vol.16 (6), p.1033-1045
Main Authors: Cheng, Kuan-Chen, Catchmark, Jeffrey M, Demirci, Ali
Format: Article
Language:English
Subjects:
Acetobacter xylinum
Additives
Agitation
Bacteria
Bioorganic Chemistry
Cellulose
Ceramics
Chemistry
Chemistry and Materials Science
Composites
Crystal structure
Crystalline cellulose
Crystallinity
Culture
Dynamic mechanical analysis
Emission analysis
Fermentation
Field emission microscopy
Glass
Material properties
Modulus of elasticity
Natural Materials
Organic Chemistry
Pellicle
Physical Chemistry
Polymer Sciences
Scanning electron microscopy
Sodium alginate
Sustainable Development
Thermogravimetric analysis
X-ray diffraction
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Summary:Bacterial cellulose (BC) demonstrates unique properties including high mechanical strength, high crystallinity, and high water retention ability, which make it an useful material in many industries, such as food, paper manufacturing, and pharmaceutical application. In this study, different additives including agar, carboxymethylcellulose (CMC), microcrystalline cellulose, and sodium alginate were added into fermentation medium in agitated culture to enhance BC production by Acetobacter xylinum. The optimal additive was chosen based on the amount of BC produced. The produced BC was analyzed by using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), and dynamic mechanical analysis (DMA). Among the evaluated additives, CMC yielded highest BC production (8.2 g/L) compared to the control (1.3 g/L). The results also indicated that CMC-altered BC production increased with CMC addition and reached saturation around 1%. The variation between replicates for all analysis was
ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-009-9346-5