Extracellular Enzymatic Activities in Aureobasidium pullulans

Abstract

Strains (198) of A. pullulans were screened for their ability to release extracellular hydrolytic enzymes into the cultural medium. Most of the isolates produced, to a varying extent, enzymes such as amylase, lipase (with different fats as substrates), protease (as caseinolysis and gelatin liquefaction), nucleases [RNase, DNase], urease and phosphatase. Neither cellulase nor chitinase were produced. Since some enzymes showed a high level of activity, A. pullulans could possibly be considered a promising source of extracellular lytic enzymes.