• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Biosynthesis and Characterization of Bacteria Cellulose-Alginate Film
【24h】

Biosynthesis and Characterization of Bacteria Cellulose-Alginate Film

机译：细菌纤维素藻酸盐膜的生物合成与表征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A novel polysaccharide membrane containing alginate in bacterial cellulose matrix was synthesized by Acetobacter xylinum under static conditions using a culture medium supplementation with sodium alginate. By increasing alginate content, the bacterial cellulose-alginate (BCA) membrane was more hydrophilic and the film structure became denser with the smaller average pore size. Scanning electron microscope images displayed the deposits of alginate gel on the surfaces of the multilayer cellulose film. The declines in the tensile strength, the Young's modulus, and the elongation at break of the BCA membrane were dependent on the degree of alginate supplement. The BCA membrane showed higher water absorption capacity. The addition of alginate slightly affected the water vapor transmission rate but remarkably decreased the oxygen transmission rate of the membrane.
机译：在固定的条件下，通过补充醋藻酸钠的培养基，由醋杆菌在静态条件下合成了一种在细菌纤维素基质中含有藻酸盐的新型多糖膜。通过增加藻酸盐含量，细菌纤维素-藻酸盐（BCA）膜更亲水，并且膜结构变得更致密，平均孔径更小。扫描电子显微镜图像显示藻酸盐凝胶在多层纤维素膜的表面上的沉积。 BCA膜的抗张强度，杨氏模量和断裂伸长率的下降取决于藻酸盐补充剂的程度。 BCA膜显示出更高的吸水能力。添加藻酸盐稍微影响了水蒸气透过率，但是显着降低了膜的氧气透过率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号