Serafica G, Mormino R, Bungay H
H.P.Isermann Department of Chemical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USA.
Appl Microbiol Biotechnol. 2002 May;58(6):756-60. doi: 10.1007/s00253-002-0978-8. Epub 2002 Mar 19.
Depending upon the strain and the method of cultivation, bacterial cellulose can be reticulated filaments, pellets, or a dense, tough gel called a pellicle. The pellicular form is commonly made by surface culture, but a rotating disk bioreactor is more efficient and reduces the time of a run to about 3.5 days instead of the usual 12-20 days. Particles added to the medium as the gel is forming are trapped to form a new class of composite materials. Particles enter the films that are forming on the disks at rates depending on the size and geometry of the particle, as well as the rotational speed and concentration of the suspension.
根据菌株和培养方法的不同，细菌纤维素可以是网状细丝、颗粒，或是一种称为菌膜的致密坚韧凝胶。菌膜形式通常通过表面培养制成，但旋转盘式生物反应器效率更高，可将运行时间缩短至约3.5天，而不是通常的12 - 20天。在凝胶形成过程中添加到培养基中的颗粒会被捕获，从而形成一类新型复合材料。颗粒以取决于颗粒大小和几何形状以及悬浮液转速和浓度的速率进入在盘上形成的薄膜中。
