The content of essential oil of underground part was significantly higher than that of the aerial part and extraction rate of ultrasonic-assisted extraction method was higher.
地下部分挥发油含量明显高于地上部分，且超声辅助浸提法提取率更高。
The optimum conditions of ultrasonic wave-assisted extraction technology for litchi polysaccharides were determined with the single factor and the RSA response surface method.
通过单因素试验和RSA响应面分析法优化了荔枝多糖的超声波辅助提取工艺。
Compared with the ultrasonic extraction and water bath extraction method, the microwave-assisted extraction was time saving and more efficient.
与超声波提取法和水浴提取法相比，微波辅助提取法具有快速、高效的优势。
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