A study on extraction and determination some bioactivities of flavonoid extract from Houttuynia cordata Thunberg cultivating in Hanoi city

Hoang Van Tuan, Pham Huong Son, Nguyen Thi Hien, Nguyen Dinh Luyen, Nguyen Thanh Hao

Abstract


Houttuynia cordata Thunb. is a medicinal plant in Vietnam, has many biological activities including anti-inflammatory, anti-oxidant, anti-microbial and immunological effects. The active components in H. cordata are flavonoids. In this study, the H. cordata extract was obtained by water and alcohol. Then, total flavonoids, anti-microbial and anti-oxidant effects of H. cordata extract were determined. The results shown that,
H. cordata ethanolic extract had total flavonoids content more than H. cordata water extract, 2.19% and 0.83%, respectively. Rutin and quercetin content in ethanolic extract was 0.14% and 0.01% (g/g dried
H. cordata extract). Moreover, H. cordata ethanolic extract could inhibit four bacterial strains including
E. coli, P. aerugninosa, B. subtillis and S. aureus. Anti-oxidant effects of H. cordata ethanolic extract reached 61.23%, SC50 was 19.56 mg/ml.


Keywords


Houttuynia cordata, antimicrobial, antioxidant, flavonoid, quercetin.

Full Text:

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DOI: https://doi.org/10.15625/0866-7160/v35n3se.3878 Display counter: Abstract : 114 views. Untitled : 302 views.

 

                 

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