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药学学报  2015 

市售鹿茸粉药材的dna条形码鉴定

, PP. 1356-1361

Keywords: 鹿茸粉,dna条形码,克隆,鉴定

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Abstract:

为研究dna条形码技术在粉末类药材的应用,本文以市售鹿茸粉为对象,对其基原物种进行鉴定。依据2010版《中国药典》第三增补本中动物药材dna条形码分子鉴定标准操作流程获得coi序列。对于测序峰图杂合度较高,可能为混合物的鹿茸粉,采用分子克隆方法得到序列。结果表明,利用pcr产物直接测序获得鹿茸粉的65条coi序列,其中有38%待检样品基原为2010版《中国药典》规定的梅花鹿cervusnippontemminck或马鹿cervuselaphuslinnaeus,而62%为其他基原,以驯鹿rangifertaranduslinnaeus为主。进一步分析显示,不同价格、不同地域、不同公司抽检的样品或多或少存在非《中国药典》规定基原。利用分子克隆方法成功获得混合物样品的36条coi序列,主要基原为马鹿和梅花鹿。此外,有些待检样品包装明确标示为梅花鹿鹿茸粉,但鉴定结果为马鹿或驯鹿。因此,本研究证实dna条形码技术可准确、有效鉴别市售鹿茸粉,为保障临床用药安全和市场监管提供新的技术手段,也为粉末类药材和饮片的鉴定提供示范。

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