In this paper the extraction techniques by water, ethanol and water-extraction-and-alkali-deposition were compared, and it's founded the third method is the most efficient.

通过对水抽提、醇抽提、水提碱转法三种甜茶多酚抽提工艺进行对比，得出水提碱转法为较好的一种抽提方法。

The results showed that whether lotus germ water-extraction or ethanol-extraction having scavenging activities on superoxide anion and hydroxyl radical.

结果表明：无论是莲子心的水提液还是莲子心的醇提液都表现出了良好的清除超氧阴离子和羟自由基的能力。

Results Alcohol extracts of XD had an obvious effect on promoting UMC, but the volatile oil and water-extraction alcohol-precipitation extracts had an inhibitory effect.

结果醇提物缩宫作用显著，而挥发油、水提醇沉物具抗子宫收缩作用；