红蜜南瓜中叶黄素的超临界CO_2流体萃取分离方法研究

Studies on the Isolation Method of Lutein from Cucurbiat Moschata Duch by Supercritical Carbon Dioxide Fluid Extraction

研究了日本红蜜南瓜中叶黄素的超临界CO2萃取方法,确定了提取叶黄素的最佳工艺条件,即:萃取压力15MPa、萃取温度40℃、CO2流量20kg/h、萃取时间4h。在上述条件下,叶黄素的提取率可达到88%,提取物中的叶黄素含量达到88.2%。

Extraction method of lutein in Japanese pumkin （Cucurbiat moschata Duch） by supercritical carbon dioxide fluid was studied, and the optimum extraction conditions were determined as follows： extraction pressure was 15 MPa, extraction temperature was 40 ℃, flow rate of CO2 was 20kg/h, and extraction time was 4h. Under above conditions, extraction yield of lutein was 88%, and 88.2% lutein of the extracts was obtained.