Optimization of the Extraction Process of Astaxanthin from Haematococcus pluvialis with Oil Dissolution Method

[Objective] This study aimed to optimize the extraction process of astaxanthin from Haematococcus pluvialis with oil dissolution method. [Method]Small amounts of acetone or ethanol were separately added into soybean oil for astaxanthin extraction. The extraction efficiency of astaxanthin from H. pluvialis with different methods was compared. [Result]The extraction efficiency of astaxanthin from H. pluvialis with acetone,acetone + soybean oil,ethanol + soybean oil,soybean oil was 20. 46,21. 65,20. 85 mg/g and 13. 05 mg/g,respectively. According to the results,acetone + soybean oil led to the highest extraction rate,which was approximately twice that of soybean oil and higher than that of acetone. [Conclusion] This study laid the foundation for large-scale production of astaxanthin.