He Shan, Wu Yixiao, Zhang Yang, Luo Xuan, Gibson Christopher T, Gao Jingrong, Jellicoe Matt, Wang Hao, Young David J, Raston Colin L
School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan City, China; College of Engineering, IT & Environment, Charles Darwin University, Casuarina, NT, Australia; Flinders Institute for Nanoscale and Technology, College of Science and Engineering, Flinders University, Bedford Park, SA, Australia; College of Science and Engineering, Flinders University, Bedford Park, South Australia, Australia.
College of Engineering, IT & Environment, Charles Darwin University, Casuarina, NT, Australia.
Int J Biol Macromol. 2023 Dec 31;253(Pt 7):127076. doi: 10.1016/j.ijbiomac.2023.127076. Epub 2023 Sep 26.
Biodegradable, biomass derived kombucha cellulose films with increased mechanical strength from 9.98 MPa to 18.18 MPa were prepared by vortex fluidic device (VFD) processing. VFD processing not only reduced the particle size of kombucha cellulose from approximate 2 μm to 1 μm, but also reshaped its structure from irregular to round. The increased mechanical strength of these polysaccharide-derived films is the result of intensive micromixing and high shear stress of a liquid thin film in a VFD. This arises from the incorporation at the micro-structural level of uniform, unidirectional strings of kombucha cellulose hydrolysates, which resulted from the topological fluid flow in the VFD. The biodegradability of the VFD generated polymer films was not compromised relative to traditionally generated films. Both films were biodegraded within 5 days.
通过涡旋流体装置（VFD）处理制备了具有生物可降解性、源自生物质的红茶菌纤维素膜，其机械强度从9.98兆帕提高到18.18兆帕。VFD处理不仅将红茶菌纤维素的粒径从约2微米减小到1微米，还将其结构从不规则形状重塑为圆形。这些多糖衍生膜机械强度的提高是VFD中液体薄膜强烈微混合和高剪切应力的结果。这源于在微观结构层面掺入了均匀、单向的红茶菌纤维素水解产物链，这是由VFD中的拓扑流体流动产生的。相对于传统制备的膜，VFD制备的聚合物膜的生物可降解性并未受到影响。两种膜均在5天内被生物降解。
