期刊
ENGINEERING IN LIFE SCIENCES
卷 16, 期 5, 页码 483-493出版社
WILEY
DOI: 10.1002/elsc.201500151
关键词
Bacterial cellulose; Biopolymer; Biosynthesis; Gluconacetobacter xylinus; Rotating magnetic field
资金
- National Centre for Research and Development in Poland [LIDER/011/221/L-5/13/NCBR/2014]
Rotating magnetic field (RMF) is an interesting alternative to conventional bacterial cellulose (BC) production methods. The BC synthesis processes may be affected by RMF, which facilitates the transfer of oxygen and nutrients from the media to the microbial cells. RMF may also directly influence the various physical and chemical properties of BC. The main aim of the present study was to evaluate the impact of the RMF on the BC in regard to its yield and material properties. The correlation between the efficiency of polymer production and the different time of exposure to the RMF was also analyzed to determine the conditions of lower energy consumption during the cellulose formation process. It was found that the Gluconacetobacter xylinus cultures exposed to the RMF for a half of the time of the entire cellulose production process (72 h), considering the results obtained in controls, synthesized BC more effectively than bacteria continuously exposed to the RMF for 144 h. Furthermore, the application of the RMF, regardless of the exposure mode, did not negatively affect the polymer material properties. It was concluded that the use of the RMF may provide a novel technique for altering cellulose biogenesis and may be used in multiple biotechnological applications.
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