title: Raw starch digesting amylase from Thermoactinomyces thalpophilus F13.
abstract: Thermoactinomyces thalpophilus produced a raw-starch digesting amylase (RSDA) when grown on both cereal and tuber starches. Glucose, maltose and glycerol repressed enzyme production. Highest activity was recorded on rice starch (39 U ml(-1)). Considerable variability existed in the effectiveness of nitrogenous nutrients to stimulate expression of RSDA. Multiple pH optima for RSDA production and activity suggests enzyme heterogeneity.
authors.affiliation: Department of Microbiology, University of Nigeria, Nsukka, Nigeria.
authors.forename: B N
authors.initials: BN
authors.lastname: Okolo
authors.forename: L I
authors.initials: LI
authors.lastname: Ezeogu
authors.forename: C O
authors.initials: CO
authors.lastname: Ebisike