title: Growth estimation of solid-state koji by covering a cellophane membrane on the mash.
abstract: In a solid-substrate fermentation system, fungal growth within a solid mash is an important index for the efficiency of the saccharification and production of metabolites. Estimation of fungal mass in such a heterogeneous solid-substrate systems is difficult and tedious. In this work, the comparison of Aspergillus oryzae which is a common strain for the wine-brewing process cultured on a cellophane membrane placed on a koji juice agar medium and a small scale of steamed rice koji culture was conduted. Experimental results showed that the cellophane membrane technique resembled the steamed rice koji culture and is considered as a convenient and effective way for investigating the growth characteristics and cytology for solid-substrate koji system.
authors.affiliation: Department of Chemical Engineering, National Taiwan University Taipei, ROC.
authors.forename: S Y
authors.initials: SY
authors.lastname: Huang
authors.forename: S W
authors.initials: SW
authors.lastname: Hsu