Result:The ultramicro-powder shows a higher content of Baicalin than the conventional fine powder of HLJDT, improved 32.53% by ultrasonic extract and 51.15% by simply extract(stirred by spoil water).

结果：超微粉碎可增加黄芩苷的溶出，在超声提取下超细微粉中黄芩苷溶出量比细粉提高32.5%； 而在简化提取（开水冲搅）下，超细微粉中黄芩苷溶出量比细粉提高51.15%。

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