https://scholars.lib.ntu.edu.tw/handle/123456789/413436
標題: | Production of bacterial cellulose with various additives in a PCS rotating disk bioreactor and its material property analysis | 作者: | Lin S.-P. CHI-TE LIU Hsu K.-D. Hung Y.-T. Shih T.-Y. KUAN-CHEN CHENG |
關鍵字: | Bacterial cellulose;Gluconacetobacter xylinus;Materials property analysis;Plastic composite support;Rotating disk bioreactor | 公開日期: | 2016 | 卷: | 23 | 期: | 1 | 起(迄)頁: | 367-377 | 來源出版物: | Cellulose | 摘要: | Previous studies have demonstrated that bacterial cellulose (BC) can be semi-continuously produced by utilizing the plastic composite support-rotating disk bioreactor (PCS-RDB). In this study, different additives, such as microcrystalline cellulose (Avicel was used in this study), carboxymethylcellulose (CMC), agar and sodium alginate, were added to the PCS-RDB culture medium to improve the BC productivity and material properties. The produced BC was then analyzed by Fourier transform infrared spectroscopy (FTIR), scan electron microscopy (SEM), thermogravimetric analysis, X-ray diffraction (XRD) and strength analysis. Adding CMC and Avicel can increase the production of BC in PCS-RDB. The highest BC production reached (0.64?g/slice) when 0.8?% Avicel was added. Data from FTIR, XRD and SEM indicated that CMC and Avicel were incorporated into the BC during production, creating a disordered BC structure and thus reducing crystallinity. Both BCs and additive-altered BCs exhibited similar high water retention abilities (98.6¡V99?%). Additive-altered BCs exhibit similar strain but lower stress. BC production in PCS-RDB was improved by incorporating different additives, while the material properties of the produced BCs were also modified. ? 2016, Springer Science+Business Media Dordrecht. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/413436 | ISSN: | 09690239 | DOI: | 10.1007/s10570-015-0855-0 |
顯示於: | 生物科技研究所 |
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