Culture conditions and flocculating activity of exo-biopolymer produced by Pestalotiopsis sp. KCTC 8637P = Pestalotiopsis sp. KCTC 8637P에 의한 세포외 생물고분자의 생산조건과 응집활성

Abstract

A white rot fungus as a microbial source producing bioflocculant was isolated from rotted leaves and identified as Pestalotiopsis sp. MOI. The flocculating activity and productivity of Pestan produced by Pestalotiopsis sp. KCTC 8637P was determined by using Czapek-Dox medium as the inorganic salt source. The flocculating activity was highest at 3% sucrose and 0.3% KNO3) pH 7, and 25°C, respectively. Whilst, the strain growth was highest at 3% sucrose, 0,3% KNO3, pH 5, and 25°C, respectively.