干巴菌抗氧化性的研究.

The antioxidant effect of dried-powder，ethanol and petroleum ether extracts from Thelephora ganbajun was studied by Schaal oven induced oxidation method，meanwhile，dibutylhydroxytoluene (BHT) was used as a reference. The duration time of antioxidant effect was analyzed using Peroxide value ( P0V) inhibitory rate. The reduction activity，scavenging activity to DPPH free radical and hydroxyl free radical of BHT and the ethanol extracts from T. ganbajun were tested. The results showed that the sequence of antioxidant effect to the lard was the ethanol extracts (0.2 g/kg) > the petroleum etlier extracts (0.2 g/kg) > BHT (0. 2 g/kg) > dried-powder(10 g/kg). The order of duration time of antioxidant effect was the ethanol extracts = dried powder > BHT > the petroleum ether extracts. The reduction activity and scavenging activity to hydroxyl free radical of the ethanol extracts was lower than those of BHT，but the scavenging activity to DPPH free radical of the ethanol extracts was higher than that of BHT. It was reasonable that the scavenging activity to DPPH free radical reflects the anti lipid oxidation. [ABSTRACT FROM AUTHOR]