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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Methods Hydrochloric acid (HCL) decalcification method and TCA-acetone precipitation method were separately used for bone protein extraction. The efficiencies of these two methods were compared.

方法 采用盐酸脱钙法和三氯醋酸-丙酮沉淀法，分别用于骨组织蛋白的提取，并对两种方法的提取效率进行对比。

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Methods:Red blood cell(RBC) was isolated from the anti-coagulated fresh pig blood, It was hemolyzed by heated water, then heme was extracted with 3% acetone-hydrochloric acid.

方法：采用新鲜猪血抗凝离心后取血球，水浴加热溶血后，用3%盐酸丙酮提取血红素，提取液加鞣酸/氯化锶沉淀分离出血红素。

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