方法以岩白菜素含量为指标，比较冷浸提取、超声提取、回流提取3种方法提取物中岩白菜素含量。
MethodsThe cold-soaked extracting, ultrasonic extraction and heat reflux extraction technologies were respectively used for extraction of bergenin.
用体积分数95%的乙醇为溶剂，采用索氏提取、回流提取和冷浸提取时，所得提取物对TMV的抑制率均为100%。
The inhibition rate on TMV of the extract from lotus leaves with 95%(V/V) ethanol by Soxhlet extractor, reflux and cold soak are all 100%.
方法：分别采用冷浸法、匀浆-空化法、超声法、热回流法对长春花鲜叶进行提取并比较含量。
METHODS:Anhydrovinblastine was extracted from catharanthus roseus fresh leaves in different ways:merceration, homogenate-cavitation, ultrasonic wave method and hot reflux method.
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