The procedure was described, including extraction by acetone and dichloromethane, cleaning up by passing through a column made up of neutral alumina and active carbon, determination by GC with NPD.
样本用丙酮提取，加二氯甲烷萃取，通过中性氧化铝和活性炭混合柱层析净化，然后上气相色谱用NPD检测。
The results show that the extraction which got by alcohol and acetone respectively have the stranger antioxidant activity ability.
实验表明乙醇和丙酮做溶剂的提取物具有较强的抗氧化能力；
The process includes hydrochloric acid pretreatment, acetone extraction, hydrolysis of astaxanthin esters by catalysis of basic ion exchange resin, and adsorption separation.
该工艺包括粗色素油的提取，虾青素酯的水解和虾青素粗品的纯化。
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