Produktion von Xylanase durch Bacillus subtilis

Abstract

AbstractBacillus subtilis forms a xylanase complex which does not depend on induction by xylane or xylose in the medium.The enzyme production is influenced by the kind of the carbon source, probably due to catabolic repression. The regulation of enzyme formation is complex in nature, because the C/N/P‐Relation in the medium, cell mass, and growth phase influence the amount of enzyme in the culture fluid. Maximal enzyme production was achieved at high but balanced amounts of C/N/P, although growth was strongly reprimed under these conditions. A formation of cellulase, aryl‐β‐xylosidase and aryl‐β‐glucosidase could not be observed.