Preparation and Application of Bacterial Cellulose Sphere: A Novel Biomaterial

This paper explores preparation of spherical bacterial cellulose (BC), a novel biomaterial, and its adsorption capacity is charaterized. The effect of shaking speed and culture duration on fermentation production of BC spheres is analyzed; BC spheres are produced after 72 h fermention at 30°C with a shaking speed of 160 rpm. The spheres have a diameter range of 3–5 mm. The scanning electron micrograph photograph shows that BC spheres have a loose and porous structure. Repetition using tests on adsorption of Bovine serum albumin (BSA) and Pb2+ had been carried out. The results indicated that BC spheres can be recovered from BSA-BC complex and Pb-BC complex by eluting with NaOH and sodium citrate solution, respectively. So BC spheres have a vast potential for application in the fields of biomaterial bioseparation and sewage treatment.