The result showed that liquorice had very high antioxidant activity in palm oil, lard and rap oil, and liquorice ethanolic extract, 0.02 % dose of which had higher antioxidant activity than maximum permissible dose of BHT. 结果表明,甘草对多种油脂均具有很强的抗氧化活性,甘草醇提物0.02%的添加量有优于BHT在最大限制用量时的抗氧化性能。