AMYLOLYTIC ACTIVITIES OF FUNGI SPECIES ON THE SCREENING MEDIUM ADJUSTED TO DIFFERENT pH

Authors : Bilal BALKAN, Halide AYDOĞDU, Seda BALKAN, Figen ERTAN

Pages : 1-12

View : 16 | Download : 12

Publication Date : 2014-03-12

Article Type : Research Paper

Abstract :The purpose of this study was to determine the amylolytic activities in different fungal species on the medium with different pH values. In the study, thirty-eight fungal species were screened by using a plate culture method on Czapek-Dox Agar medium with different pH values for the determination of amylase production. Among the tested fungal species; four species on medium adjusted to pH 4.0, ten species on medium with pH 4.5, nine species on medium with pH 5.0, four species on medium with pH 5.5 and one species on medium with pH 6.0 showed higher amylolytic activity. While Chaetomium sp. on medium adjusted to pH 4.0-4.5 showed high rates of amylolytic activity, Alternaria citri on medium adjusted to pH 4.5-5.0 showed high rates of amylolytic activity. Cladosporium cladosporoides on medium adjusted to pH 5.0 showed amylolytic activity however they didn’t show it at the other levels of pH. Seven fungi species did not show any amylolytic activity on the medium with different pH values. The selection of suitable fungi species for amylase production depends upon environmental conditions, especially upon medium pH.
Keywords : Amilaz, küf, pH