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The bacterial cellulose (BC) secreted by Gluconacetobacter xylinus was explored as a novel scaffold material due to its unusual biocompatibility, light transmittance and material properties. The specific surface area of the frozen-dried BC sheet based on BET isotherm was 22.886 m2/g, and the porosity was around 90%. It is known by SEM graphs that significant difference in porosity and pore size exists...
Bacterial cellulose (BC) tissue engineering scaffold, possessing nano-fiber, an ultrafine 3-dimensional network and proper porosity, has been prepared by static culture of G. xylinus. It has been characterized by scanning electron microscope (SEM), atomic force microscope (AFM), and light microscope. The pore size of BC is 0.6 to 2.6 micrometers (mum) and the width of cellulose ribbon is 50 to 80...
Streptomyces albulus TUST2, separated from a soil sample of Hainan Island, was cultivated in a stirred, submerged aerated 5-1 bioreactor. Carbon source and nitrogen source effects were clarified in fed-batch fermentation, particularly glucose and ammonium sulfate feedings for enhancing the epsiv-poly-L-lysine (epsiv-PL) production were elucidated. The culture was divided into two control phases. In...
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