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本文主要介绍了两种不同来源脂磷酸聚糖（ｌｉｐｏｐｈｏｓｐｈｏｇｌｙｃａｎ，ＬＰＧ）的提取方法，测定蛋白含量分别为５０μｇ／ｍＬ和２５２μｇ／ｍＬ，并对其免疫源性及抗原性做了初步鉴定，ＥＬＩＳＡ法测出ＬＰＧ可与抗一ＬＰＧ免疫兔血清Ｉｇ和前鞭毛体免疫兔血清及黑热病病人血清反应，终点滴度有差别。
This article mainly introduced the extraction methods of lipophosphoglycan (LPG) from two different sources, the protein content was 50μg / mL and 252μg / mL respectively, and the immunogenicity and antigenicity were identified preliminarily. ELISA LPG was detected with anti-LPG immune rabbit serum Ig and promastigote immunized rabbit serum and kala-azar patients serum reaction, the end point titer difference.