Extracting astaxanthin with low toxicity organic solvent,such as acetone.Having studied the extraction time,extraction temperature,the amount of algae powder,dilution times,whether using of quartz sand or petroleum ether and other factors,which effect on the extraction.Experiments show that the extraction rate of astaxanthin can reach 63.3 % when it was extracted at 40 ℃ by 30 minutes with 0.15 g amount of algae powder,diluting 25/1.5 times and using of quartz sand and petroleum ether.%用低毒性有机溶剂（如丙酮）提取虾青素,研究了提取时间、提取温度、藻粉用量、稀释倍数、是否使用石英砂、是否使用石油醚等因素对提取效果的影响。实验表明：在40℃下提取30 min,藻粉用量0.15 g,稀释倍数为25/1.5,使用石英砂和石油醚,虾青素提取率可以达到63.3%。
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