The Feature of the Proteolytic Enzyme System of Acid-Tolerant and Alkaline-Tolerant Fungi

Abstract

Seventy-nine strains of the isolated fungi which are capable of growing on the agar plate of pH 1.5 (acid-tolerant fungi) and 74 strains of the isolates which are capable of growing on the agar plate of pH 10 (alkaline-tolerant fungi) were analyzed for the nature of proteolytic enzymes which were produced in wheat bran culture. Most of acid-tolerant fungi had proteolytic enzyme system consisting almost solely of acid proteinase and most of alkalinetolerant fungi had proteolytic enzyme system consisting almost solely of alkaline proteinase.