Fecha de publicación: 14/01/2025 Fuente: Polymers Polymers, Vol. 17, Pages 179: Cost-Effective Production of Bacterial Cellulose and Tubular Materials by Cultivating Komagataeibacter sucrofermentans B-11267 on a Molasses Medium
Polymers doi: 10.3390/polym17020179
Authors:
Marina V. Parchaykina
Elena V. Liyaskina
Alena O. Bogatyreva
Mikhail A. Baykov
Diana S. Gotina
Nikita E. Arzhanov
Alexander I. Netrusov
Viktor V. Revin

An original design of a simple bioreactor was used to fabricate two tubular, 200 cm long BC structures by culturing Komagataeibacter sucrofermentans B-11267 on a molasses medium. In addition, a tubular BC-based biocomposite with improved mechanical properties was obtained by combining cultivation on the molasses medium with in situ chemical modification by polyvinyl alcohol (PVA). Moreover, the present study investigated the BC production by the K. sucrofermentans B-11267 strain on the media with different molasses concentrations under agitated culture conditions. The dynamics of sugar consumption during the cultivation were studied by HPLC. The structure and physicochemical properties of BC and tubular BC structures were characterized by FTIR spectroscopy and X-ray diffraction (XRD). Thus, the findings indicate that K. sucrofermentans B-11267, when cultivated in a molasses medium, which is such a cheap waste product in the sugar industry, forms a significant amount of BC with a high crystallinity degree. The BC tubular structures demonstrated great potential for their application in biomedicine as artificial blood vessels and conduits for nerve regeneration.