Optimized procedure to extract the total flavonoids from Houstonian cordata

doi:10.14088/j.cnki.issn0439-8114.2019.21.033

Abstract

Abstract: The extraction medium was selected,the extraction rate of total flavonoids from Houttuynia cordata was taken as the index, and rutin was taken as the reference substance. On the basis of single factor test, four factors such as ethanol concentration, liquid-liquid ratio, extraction temperature and extraction time were optimized by orthogonal design. The results showed that the optimal solution for extracting total flavonoids from Houttuynia cordata by ethanol extraction method was as follows： Houttuynia cordata powder was mixed with 75% ethanol solution in a ratio of 1∶25 and placed in a constant temperature water bath at 70 ℃ for 90 min, the total flavonoid extraction rate of Houttuynia cordata was 3.640%. This experiment provides a reference for optimizing the extraction process of total flavonoids from Houttuynia cordata.

Key words: Houttuynia cordata Thunb., total flavonoids, optimization of procedure, orthogonal design

CLC Number:

R284.2

LIU Hao, TANG Hong-feng. Optimized procedure to extract the total flavonoids from Houstonian cordata[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(21): 155-158.

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