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  • Title: [A novel approach to quality evaluation of root of Scutellaria baicalensis by DPPH free radical scavenging].
    Author: Liu YP, Basnet P, Komatsu K, Cao H.
    Journal: Zhongguo Zhong Yao Za Zhi; 2002 Aug; 27(8):575-9, 619. PubMed ID: 12776494.
    Abstract:
    OBJECTIVE: To develop a simple, reliable approach for evaluating the quality of Huangqin (Scutellaria baicalensis). METHOD: To determine the DPPH free radical scavenging activity and assay of four bioactive components: baicalin, baicalein, wogonin and wogonin-7-O-glucuronide by HPLC. RESULT: The correlative relationship between DPPH free radical scavenging activity and baicalin content was obtained. CONCLUSION: Bioassay of DPPH free radical scavenging activity could be used as one of the methods for quality evaluation of Chinese drug Huangqin.
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