Chitosan is a major structural component of fungal cell walls and has diverse medical and other applications. However, cost‐effective culture and extraction methods for fungi need to be developed. Therefore, Mucor rouxii was grown on YPG‐media in both submerged batch and semi‐continuous cultures. Chitosan was extracted from the mycelia to explore strategies to enhance yields and production rates. As observed in earlier studies, M. rouxii is able to adapt to shear stress when cultured semi‐continuously. Modeling the hyphal growth of batch experiments shows that the mycelia were ruptured by shear forces within a short cultivation time shown by a decreased hyphal length. However, an increasing chitosan content was observed with an increasing cultivation period in semi‐continuous cultures, which is an indication for the adaption to shear stress. Semi‐continuous culture resulted in the highest contents of extractable chitosan. The results and models of hyphal growth, including tip extension and branching, suggest that repeated batch cultures may be optimal for chitosan production.
Eigene Untersuchungen zeigen, dass Chitosan aus verschiedenen Pilzmycelien, die als Restprodukte bei biotechnologischen Prozessen anfallen, gewonnen werden kann. Unter gewissen Umständen kann sogar ein Fermentationsprozess beim Einsatz von Dünnschlempe rentabel sein. Im Vergleich zum Krabbenchitosan können bei der fermentativen Herstellung von Chitosan Aufarbeitungsschritte bei dennoch bedeutend höherer Ausbeute eingespart werden. Analysen ergaben, dass pilzliches Chitosan zum Krabbenchitosan einen vergleichbaren Deacetylierungsgrad hat, kein Protein sowie keine Schwermetalle enthält, jedoch ein sehr niedriges Molgewicht aufweist. Auf Grund dieser Eigenschaften ist es für eine Anwendung in der Medizin und Pharmazie, in der Kosmetikindustrie sowie in der Lebensmittelindustrie sehr gut geeignet.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.