| 细菌纤维素复合材料的发酵制备研究 |
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| 引用本文： | 李朋,唐水佳,杨光,杨雪霞,洪枫.细菌纤维素复合材料的发酵制备研究[J].纤维素科学与技术,2011,19(4):1-5. |
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| 作者姓名： | 李朋 唐水佳 杨光 杨雪霞 洪枫 |
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| 作者单位： | 东华大学化学化工与生物工程学院微生物工程与工业生物技术研究组 |
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| 基金项目： | 上海市科学技术委员会资助项目，上海市教育委员会科研创新项目，中央高校基本科研业务费专项资金重点项目，高等学校学科创新引智计划项目 |
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| 摘 要： | 通过在发酵培养基中添加琼脂、可溶性淀粉、明胶、壳聚糖等水溶性高分子物质制备改性细菌纤维素,并采用扫描电镜(SEM)、热重分析(TGA)、万能材料测试机等检测手段对改性细菌纤维素的结构、形态特征及物理性能进行研究。结果发现:琼脂、可溶性淀粉、明胶均在一定程度上对合成的细菌纤维素的强力和结构有一定的影响,而壳聚糖由于本身具有抑菌作用,它的添加抑制了细菌的生长,基本上不能合成纤维素。通过TGA分析证实改性细菌纤维素中添加物的存在。
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| 关 键 词： | 细菌纤维素 复合材料 改性 发酵 物理性能 |
Production of Modified Bacterial Cellulose Composite by Fermentation |
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| LI Peng,TANG Shui-jia,YANG Guang,YANG Xue-xia,HONG Feng,Ministry of Education,China.Production of Modified Bacterial Cellulose Composite by Fermentation[J].Journal of Cellulose Science and Technology,2011,19(4):1-5. |
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| Authors: | LI Peng TANG Shui-jia YANG Guang YANG Xue-xia HONG Feng Ministry of Education China |
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| Affiliation: | LI Peng1,TANG Shui-jia1,YANG Guang1,YANG Xue-xia1,HONG Feng1,2*(1.Group of Microbiological Engineering and Industrial Biotechnology,College of Chemistry,Chemical Engineering and Biotechnology,Donghua University,Shanghai 201620,China,2.Key Laboratory of Science & Technology of Eco-Textile(Donghua University),Ministry of Education,China) |
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| Abstract: | The modified bacterial cellulose （BC） was produced during the static fermentation in the presence of water-soluble polymer materials including agar, soluble starch, gelatin and chitosan. The structure and physical properties of the modified bacterial cellulose were investigated by scanning electron microscopy （SEM）, thermogravimetric analysis （TGA） and a force test equipment. The results showed that both the mechanical strength and structure were changed by adding agar, soluble starch and gelatin. Chitosan exhibited negative effects on the synthesis of BC membrane due to its inhibition effect to the growth of bacteria. The BC modifications by adding the polymer materials were proved through TGA analysis. |
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| Keywords: | bacterial cellulose composite modification fermentation physical property |
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