The Korean Journal of Community Living Science (한국지역사회생활과학회지)

The Korean Society of Community Living Science (한국지역사회생활과학회)
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Assessment of the Physiological Activities of Flower Extracts from White Lotus

백련 꽃 추출물의 생리활성 효과

  • Im, Myung-Hee (Institute of Regional Crop Research, Mokpo National University) ;
  • Park, Yong-Seo (Dept. of Horticulture, Division of Biotechnology and Resources, Mokpo National University) ;
  • Cho, Ja-Yong (Dept. of Medicated Diet & Food Technology, Jeonnam Provincial College) ;
  • Heo, Buk-Gu (Naju Foundation of Natural Dyeing Culture)
  • 임명희 (목포대학교 지역특화작목산업화센터) ;
  • 박용서 (목포대학교 원예과학과) ;
  • 조자용 (전남도립남도대학 약선식품가공과) ;
  • 허북구 ((재)나주시천연염색문화재단)
  • Published : 2008.03.30
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Abstract

This study was conducted to gather basic data on the physiological activities of flower extracts from 4 cultivars of white lotus to promote the increase of public consumption. Four cultivars of white lotus: c.v. 'Garam', 'Choeue', 'Baekhwageonryeon', and 'Seungdal' were harvested on 14, August, 2007, and the physiological activities of flower extracts obtained by hot water extraction and ethanol extraction were examined. Total phenol content was highest in the 'Garam' flower hot water extracts, $144.2{\mu}g{\cdot}mL^{-1}$, and lowest in the 'Seungdal' flower ethanol extracts, $63.4{\mu}g{\cdot}mL^{-1}$. DPPH radical scavenging activity was highest at 2,000ppm flower extract of 'Garam' obtained by hot water extraction and ethanol extraction of 90.9% and 83.0%, respectively. Total flavonoid content in the flower extracts of 'Garam' obtained by hot water extraction and ethanol extraction showed the highest levels at $34.1{\mu}g{\cdot}mL^{-1}\;and\;33.9^{\mu}g{\cdot}mL^{-1}$, respectively. Nitrite scavenging activity at 1,000ppm flower extract was highest in 'Garam'. Extracts obtain by hot water and ethanol showed 91.3% and 80.4% activity, respectively. No significant difference in tyrosinase inhibition activity was observed among the cultivars or as a result of extraction method. Overall anti-microbial activity of the flower extracts was slightly higher in 'Garam' than in the other cultivars.

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