Comparisons of Physical Properties of Bacterial Celluloses Produced in Different Culture Conditions Using Saccharified Food Wastes

摘要: The saccharogenic liquid (SFW) obtained by the enzymatic saccharification of food wastes was used as a medium for production bacterial cellulose (BC). carried out cultivation supernatant ofTrichoderma harziaum FJ1 culture.Acetobacter xylinum KJ1 employed BC culture. physical properties, such polymerization, crystallinity, Young's modulus, and tensile strength, BCs produced three culture methods: static cultures using HS (Hestrin-Schramm) reference (A) or SFW (B), shaking (C) air circulation (D) medium, were investigated. degrees polymerization under different conditions (A∼D) showed 11000, 9500, 8500, 9200, respectively. modulus 4.15, 5.0, 4.0, 4.6 GPa, Tensile strength 124, 200, 80, 184 MPa, All had form I representing pure cellulose. In case culture, degree crystallinity 51.2%, lowest degree. Under other culturing conditions, trend should remain in range 89.7–84%. Overall, properties from similar to those commercial complex mode brought more favorable results terms its ease scale-up. Therefore, it is expected that new method, like SFW, would contribute greatly BC-related manufacturing.