Title: Enhancement of Bacterial Cellulose Productivity and Preparation of Branched Polysaccharide-Bacterial Cellulose Composite by Co-cultivation of Acetobacter Species.
Abstract:We have succeeded in enhancing the bacterial cellulose (BC) productivity using sucrose as a carbon source by the co-cultivation of two different types of Acetobacter species, BC-producing Acetobacter ...We have succeeded in enhancing the bacterial cellulose (BC) productivity using sucrose as a carbon source by the co-cultivation of two different types of Acetobacter species, BC-producing Acetobacter xylinum NCI 1051 and ATCC 10245, which utilize glucose as a carbon source, and branched polysaccharide (BP)-producing Acetobacter aceti subsp. xylinum NCI 1005, which utilizes sucrose as a carbon source. BP-BC composite yields for given mixing ratios of these two species of bacteria were greater than that of control. The contents of BP in the BP-BC composites were 5-30wt%. It was suggested that the BC productivity of Acetobacter xylinum NCI 1051 and ATCC 10245 using sucrose as the carbon source was enhanced by co-cultivation from the increase in the BC production amount. This seems to be due to the formation of glucose and fructose through the hydrolysis of sucrose by sucrase secreted from Acetobacter aceti subsp. xylinum NCI 1005.Read More