Glucans secreted by fungi
نویسنده
چکیده
The production of Schizophyllan by Schizophyllum commune and Scleroglucan by Sclerotium rolfsii is growth associated. Shear stress as a result of the impeller type and rotation speed as well as an optimum but not maximum oxygen supply are the key factors for enhanced production. Batch cultivations resulted maximum yields of 13 g L for both ß-glucans. In oxygen limited chemostats with biomass feedback maximum productivities of 40 g L d (Schizophyllan) and 95 g L d (Scleroglucan) were attained. The subsequent downstream process was carried out by cross flow filtration techniques.
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