PRODUCTION OF HIGH-MOLECULAR-WEIGHT PULLULAN

摘要

PURPOSE:To provide a process for producing pullulan which can give pullulan of high molecular weight and prevent the culture medium from blackening due to production of black pigments. CONSTITUTION:In the production of pullulan by culturing a microorganism capable of producing pullulan, Aureobasidium pullulans, the culture mixture is heat-treated at 50 to 75 deg.C for 0.3 to 3hrs. The heat treatment inhibits the medium for producing pullulan from blackening.