Preparation of baeterial cellulose through fermentation of tea and its relative properties

Objective To prepare the nano-bacterial cellulose(NBC) membrane and analyze the characteristics of its structure and relative properties.Methods Red-tea fungus was used as the culturing strain,and NBC membrane produced through fermentation of tea,the surface morphology of NBC membrane was observed under SEM,the performances of their water absorption,the tensile strength and the elongation at break were also measured.Results The NBC membranes of fresh prepared were smooth,semitransparent and jel alike,and their surface morphology were porous network structure,the water hold capacity of wet BC membrane was up to 90.5%,while it was only 70% in dry membrane when it saturated with water,the tensile strength and the elongation at break were 21.05MPa and 1.8%m respectively.Conclusion It shows that the BC prepared through this method has excellent water absorption,mechanical property,and has a wide application foreground.