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Phenolics and Antioxidant Activities of Houttuynia cordata Thunb.

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【作者】 Zhiyuan ZHANGShiqiong LUOZhannan YANG

【Author】 Zhiyuan ZHANG;Shiqiong LUO;Zhannan YANG;Key Lab for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province,Guizhou Normal University;School of Life Science,Guizhou Normal University;

【通讯作者】 Zhannan YANG;

【机构】 Key Lab for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province,Guizhou Normal UniversitySchool of Life Science,Guizhou Normal University

【摘要】 [Objectives] To evaluate the phenolic components of Houttuynia cordata Thunb. and their antioxidant activities from different sources. [Methods] Samples of 35 different sources of H. cordata were collected from Guizhou,and polyphenols,total flavonoids,total chlorogenic acid and 7 kinds of flavonoids( xanthol-3-O-glucoside,hyperoside,quercitrin,rutin,quercetin,kaempferol and isorhamnetin),and DPPH free radical scavenging rate of the extracts were determined. Relationship between the contents of phenolics and the DPPH free radical scavenging rate of the extracts were analyzed by SPSS software. [Results] There were some significant differences in polyphenols,total flavonoids,total chlorogenic acid and the seven flavonoids between samples of different habitats,and the contents of polyphenols,total flavonoids and total chlorogenic acid increased linearly with altitude. There was a significant positive correlation between polyphenols,total flavonoids and total chlorogenic acid content and DPPH free radical scavenging rate of extracts. The contents of kaempferol-3-O-glucoside,hyperoside,quercitrin,rutin,quercetin kaempferol and isorhamnetin were positively correlated with the DPPH free radical scavenging rates of the extracts,except for the significant correlation with quercitrin. [Conclusions]The experimental results suggest that the antioxidant capacity of H. cordata is derived from the total contribution of the phenolic components,indicating that these components have overall equivalence of antioxidant capacities. This provides a new research idea for solving the key problems of quality control of traditional Chinese medicine.

【基金】 Supported by National Natural Science Foundation of China(41761010,81260641);Science and Technology Foundation of Guizhou Province of China([2017]1121);Doctoral Scientific Research Foundation of Guizhou Normal University(2014)
【所属期刊栏目】 Review (2019年03期)
  • 【DOI】10.19600/j.cnki.issn2152-3924.2019.03.001
  • 【分类号】R284;R285
  • 【下载频次】19
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