Production of microbial levan from sucrose, sugarcane juice and beet molasses
1992
Han, Y.W. | Watson, M.A.
Bacillus polymyxa (NRRL-18475) produced a levan-type fructan (B, 2 leads to 6 fructofuranoside) when grown on sucrose, sugarcane juice, and sugarbeet molasses. The organism converted about 46 of the fructose moiety of sucrose to levan when grown on sucrose medium, however, the yields of levan from sugarcane juice and beet molasses were much less than sucrose solution. Such sugarcane juice and beet molasses can be made a good substrate for levan production by various modifications. Adding peptone to sugarcane juice or passing beet molasses through a column of gel filtration media improved levan yield to a level almost comparable to that obtained from sucrose.
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