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国家重点基础研究发展计划(s2012AA02A707)

作品数:1 被引量:5H指数:1
发文基金:国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划更多>>
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DNA Extraction Protocol for Biological Ingredient Analysis of Liuwei Dihuang Wan被引量:5
2014年
Traditional Chinese medicine (TCM) clinical practice. So far, the methods commonly preparations are widely used for healthcare and used for quality evaluation of TCM preparations mainly focused on chemical ingredients. The biological ingredient analysis of TCM preparations is also important because TCM preparations usually contain both plant and animal ingredients, which often include some mis-identified herbal materials, adulterants or even some biological contaminants. For biological ingredient analysis, the efficiency of DNA extraction is an important factor which might affect the accuracy and reliability of identification. The component complexity in TCM preparations is high, and DNA might be destroyed or degraded in different degrees after a series of processing procedures. Therefore, it is necessary to establish an effective protocol for DNA extraction from TCM preparations. In this study, we chose a classical TCM preparation, Liuwei Dihuang Wan (LDW), as an example to develop a TCM-specific DNA extraction method. An optimized cetyl trimethyl ammonium bromide (CTAB) method (TCM-CTAB) and three commonly-used extraction kits were tested for extraction of DNA from LDW samples. Experimental results indicated that DNA with the highest purity and concentration was obtained by using TCM-CTAB. To further evaluate the different extraction methods, amplification of the second internal transcribed spacer (ITS2) and the chloroplast genome trnL intron was carried out.
Xinwei ChengXiaohua ChenXiaoquan SuHuanxin ZhaoMaozhen HanCunpei BoJian XuHong BaiKang Ning
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