Department of Immunology, Microbiology and Physiological Chemistry, West Pomeranian University of Technology in Szczecin, Piastów 45, 70-311, Szczecin, Poland.
Division of Biomaterials and Microbiological Technologies, West Pomeranian University of Technology in Szczecin, Piastów 45, 70-311, Szczecin, Poland.
Carbohydr Polym. 2015 Nov 20;133:52-60. doi: 10.1016/j.carbpol.2015.07.011. Epub 2015 Jul 13.
The aim of the study was to assess the influence of rotating magnetic field (RMF) on production rate and quality parameters of bacterial cellulose synthetized by Glucanacetobacter xylinus. Bacterial cultures were exposed to RMF (frequency f=50Hz, magnetic induction B=34mT) for 72h at 28°C. The study revealed that cellulose obtained under RMF influence displayed higher water absorption, lower density and less interassociated microfibrils comparing to unexposed control. The application of RMF significantly increased the amount of obtained wet cellulose pellicles but decreased the weight and thickness of dry cellulose. Summarizing, the exposure of cellulose-synthesizing G. xylinus to RMF alters cellulose biogenesis and may offer a new biotechnological tool to control this process. As RMF-modified cellulose displays better absorbing properties comparing to non-modified cellulose, our finding, if developed, may find application in the production of dressings for highly exudative wounds.
本研究旨在评估旋转磁场（RMF）对木葡糖酸醋杆菌合成细菌纤维素的产率和质量参数的影响。将细菌培养物在 28°C 下暴露于 RMF（频率 f=50Hz，磁感应强度 B=34mT）72 小时。研究表明，与未暴露的对照相比，在 RMF 影响下获得的纤维素具有更高的吸水性、更低的密度和更少的相互关联的微纤维。RMF 的应用显著增加了获得的湿纤维素膜的量，但降低了干纤维素的重量和厚度。总之，将合成纤维素的 G. xylinus 暴露于 RMF 会改变纤维素的生物发生过程，并可能为控制该过程提供一种新的生物技术工具。由于 RMF 改性纤维素的吸收性能优于未改性纤维素，如果得到进一步发展，本研究的发现可能会在生产高渗出性伤口的敷料方面得到应用。
