f the sort and initial

fat acid on submerged fermentation of Ganoderma lucidum for production of bioactive metabolites scavenging free radical were studied.3g·L~(-1) of yeast extract and 40 g·L~(-1) of Initial glucose were optimal for the metabo

lites.The ability of scavenging the free

oxide ion radial was remarkably improved at the 70 ppm.of Fe~(2 ).The highest rate of scavenging was 54.6%.The rate of scavenging the hydro radical was remarkably improved at the 90 ppm.of Se~(2 ).The highest rate of scavenging was 67.7%.Other metal ion did not have the effect.Oil fat was best for improving the ability of scavenging the two free radical.The suitable concentration was 0.1%,and the rate of scavenging the two free radical was 73.7% and 53% respectively.Ganoderma lucidum;scavenging free radical;submerged