Study on in vitro antioxidant activities of crude polysaccharides of three Ganoderma lucidum from different origins

In order to compare the in vitro antioxidant activities of crude polysaccharides of three Ganoderma lucidum from different origins,ABTS radical scavenging activities,DPPH radical scavenging activities,hydroxyl radical scavenging activities and K3Fe( CN)6reduction methods were employed.The results showed that the three different crude polysaccharides had certain abilities of antioxidant activities. The crude polysaccharide extracted from Jin Zhai( Anhui Province) showed the strongest capacity for scavenging ABTS and DPPH radical( EC50of1.50 mg / m L and 2.09 mg / m L) and total reducing activity. The crude polysaccharide obtained from Tong Hua( Jilin Province) showed the most potent capacity for scavenging hydroxyl radical with EC50 value of 2.13 mg / m L. The antioxidant capacity of the crude polysaccharide from Jiao He( Jilin Province) was the lowest among three crude polysaccharides.Therefore,the antioxidant activities of crude polysaccharides of Ganoderma lucidum from different origins were different.