结果：红景天醇提物对自由基的生成具有显著的抑制作用，呈现较为明显的剂量-效应关系；
RESULTS: In the DPPH system and the two chemiluminescence systems, Rhodiola ethanol-extract could significantly inhibit generation of free radicals.
结果：红景天醇提物对自由基的生成具有显著的抑制作用，呈现较为明显的剂量-效应关系；
RESULTS: In the DPPH system and the two chemiluminescence systems, Rhodiola ethanol-extract could significantly inhibit generation of free radicals.
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