Objective: to study the extraction and purification process of total anthraquinone in Rheum.
目的：改进大黄总游离蒽醌提取与纯化工艺。
Objective: to study the extraction and purification process of tannins from casuarina in order to provided theory basis for further application.
目的：研究木麻黄鞣质的提取工艺，为其开发应用提供理论依据。
The process of lycopene extraction could be divided into extracting stage and purification stage.
番茄红素的提取过程可分为提取阶段和纯化阶段。
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