【摘要】 在比较研究并确定破壁方法与溶解试剂的基础上,利用超声辅助提取方法探索不同条件下从雨生红球藻中提取虾青素的效果,并通过响应面法进一步优化提取工艺参数。结果表明,采用液氮研磨破壁处理,以乙酸乙酯-乙醇(v/v:1∶2)作为提取溶剂在超声时间18mins、超声温度39℃、液料比9∶50(mL/mg)、超声功率200 W条件下进行震荡超声处理,最后于40℃水浴振荡20 mins,虾青素提取率可达85.1%。更多还原

【Abstract】 Based on the determination of wall breaking method and dissolving reagent, ultrasonic-assisted extraction was used in this study to explore the effect of extracting astaxanthin from Haematococcus pluvialis under different conditions, and further optimize the test results by response surface methodology. The results showed that under the conditions of ultrasonic time of 18 mins, ultrasonic temperature of 39 ℃, liquid-material ratio of 9∶50(mL/mg), and ultrasonic power of 200 W, ultrasonic treatment was carried out under the condition of oscillating ultrasound. Finally, the treatment was carried out under the condition of water bath oscillation at 40 ℃ for 20 mins, the astaxanthin extraction rate can be 85.1% using Liquid nitrogen grinding broken wall treatment with ethyl acetate-ethanol(v/v: 1∶2) as the extraction solvent.更多还原