Keywords Astragalus membranaceus;Epimedium brevicornum;Amomum kravanh;Trio nyx sinensis;superoxide anion radical;electron paramagnetic resonance;

• 关键词黄芪;淫羊藿;白豆蔻;鳖甲;超氧阴离子自由基;电子顺磁共振;