Method for extracting active components in Indian azalea leaves by using ultra-critical CO2

The invention provides a method for extracting active components in Indian azalea leaves by using ultra-critical CO2. The method comprises the following steps: smashing the Indian azalea leaves and placing the smashed Indian azalea leaves into an extraction kettle; performing extraction by taking CO2 fluid as an extraction agent under the extraction pressure of 15 to 20 MPa and at the temperature of 35 to 45 DEG C for 1.5 to 2.5 hours to obtain a faint yellow extract of the active components. By adopting the method for extracting the Indian azalea leaves picked at a blooming period, the extraction efficiency of bioactive components is high, the extraction speed is high, and a plurality of (up to 23 kinds) compounds are obtained by extraction and separation; the method has the advantages of simple process, saving in reagents, low energy consumption, low cost and low pollution, and is superior to other extraction methods adopting the conventional extraction technology. 本发明提供种利用超临界CO提取红花杜鹃叶中活性成分的方法，是将红花杜鹃叶粉碎后放入萃