Aerial mycelia of Aspergillus oryzae accelerate alpha-amalyse production in a model solid-state fermentation system

Y.S.P. Rahardjo, F.J. Weber, S. Haemers, J. Tramper, A. Rinzema

Research output: Contribution to journalArticleAcademicpeer-review

28 Citations (Scopus)

Abstract

Aspergillus oryzae is commonly used in solid-state fermentation (SSF) and forms abundant aerial mycelia. Previously, we have shown that aerial mycelia are extremely important for the respiration of this fungus during growth on a wheat-flour model substrate. In this paper, we show that aerial mycelia of this fungus give a strong increase in fungal biomass and ¿-amylase production. Cultures of A. oryzae on wheat-flour model substrate produced twice the amounts of fungal biomass and a-amylase, when aerial mycelia were formed. Utilization of these findings in commercial solid-state fermenters requires further research; results from packed beds of grain indicate that aerial mycelia are of limited importance there. Probably, substrate pre-treatment and an increase in bed voidage are required
Original languageEnglish
Pages (from-to)900-902
JournalEnzyme and Microbial Technology
Volume36
Issue number7
DOIs
Publication statusPublished - 2005

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