提取物经醇沉后，用石油醚沉淀法分离低聚原花青素，产物经正丁醇-盐酸法显色，比色法测定质量含量可达90%以上。
After ethanol precipitation, OPC was separated by ethyl acetate-ligroin system. Content of OPC was determined by normal butyl alcohol-hydrochloric acid method at 546 nm to be over 90%.
由云南镇雄采取新鲜生漆，经丙酮除去漆酚，沸水浴提取，三氯醋酸—正丁醇除杂蛋白，乙醇沉淀。
The urushiol in the extract was removed from lacquer by autoae. The Polysaccharide btained from acetone powder were extracted by boiling water bath.
由云南镇雄采取新鲜生漆，经丙酮除去漆酚，沸水浴提取，三氯醋酸—正丁醇除杂蛋白，乙醇沉淀。
The urushiol in the extract was removed from lacquer by autoae. The Polysaccharide btained from acetone powder were extracted by boiling water bath.
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