Strain No.549 was discovered to be the most
competitive Lovastatin producer of the five Lovastatin producing strains that were maintained in our laboratory. It was irradiated with Nd:YAG laser. It yields mutant strain T013 which was discovered to be the most potent Lovastatin producing strain. The Lovastatin content of the ferment production was determined by HPLC. My research shows that rice is the most moderate carbon source of the medium, compound D is the best nitrogen ...