，
;In order to provide a basis for the research and development of gromwell,the studies on domestic extraction of alkannin was reviewed in briefly.
对国内有关紫
色素提取的概况进行了综述,为研究和开发紫提供依据。
属植物（尤指
用紫）In order to provide a basis for the research and development of gromwell,the studies on domestic extraction of alkannin was reviewed in briefly.
对国内有关紫色素提取的概况进行了综述,为研究和开发紫提供依据。
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