The differences of two extraction methods were studied.
研究了两种不同的方法对姜精油的提取。
The two extraction methods gave a general flavor profile of the sample.
两种提取方法互为补充，较为全面的反映了牛肉香精的风味轮廓组成。
Analyzed by HPLC, UV, and TLC, comparison between two extraction methods of soybean saponin is reported in this paper.
通过高效液相色谱，紫外光谱及薄层层析分析，对两种方法所提取的大豆皂甙进行了比较。
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