Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Physiological Activity and Antiproliferation Effects of Citron Seed Extracts on Cancer Cells

유자씨 추출물의 생리활성과 암세포 성장 억제효과

  • Lee, Yoon-Jeong (Dept. of Food Science and Technology, Chungbuk National University) ;
  • Hwang, In-Guk (Dept. of Food Science and Technology, Chungbuk National University) ;
  • Joung, Eun-Mi (Dept. of Food Science and Technology, Chungbuk National University) ;
  • Kim, Hyun-Young (Dept. of Food Science and Technology, Chungbuk National University) ;
  • Park, Eui-Seok (Metome Food Co. Ltd) ;
  • Woo, Koan-Sik (Div. of Functional Cereal Crop, National Institute of Crop Science, RDA) ;
  • Jeong, Heon-Sang (Dept. of Food Science and Technology, Chungbuk National University)
  • Published : 2009.12.31
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Abstract

This study was carried out to investigate the total polyphenol, total flavonoid content, antioxidant activity, angiotensin I-converting enzyme (ACE) inhibitory activity, $\alpha$-glucosidase inhibitory activity, and antiproliferation activity of the citron seed. The citron seed were separated to hull and embryo, and extracted with n-hexane and 70% ethanol. Antioxidant activity of ethanol extract was higher than that of n-hexane extract. IC50 value for DPPH radical scavenging activity of ethanol extract of hull (CSE1) and embryo (CSE2) were 3.18 and 8.43 mg/mL, and those of total antioxidant activity were 19.96 and 11.28 mg AA eq/g, respectively. ACE inhibitory activity and $\alpha$-glucosidase inhibitory activity on CSE1 showed the highest values of 31.61 and 45.17%, respectively. Antiproliferation effects on the MCF7, HepG2, H460, HCT-116, and PC3 cell line showed the highest values of 14.09, 19.12, 12.29, 9.78, and 9.12% in extract concentration of 5 mg/mL, respectively. These results suggested that citron seed can be used for development of functional food material which have biological activities.

유자씨 종피와 배유부분에 대한 n-hexane 및 ethanol 추출물에 대한 항산화활성, ACE 저해활성, $\alpha$-glucosidase 억제활성 및 항암활성을 살펴보았다. 항산화활성은 종피 nhexane 추출물(CSH1), 배유 n-hexane 추출물(CSH2), 종피 70% ethanol 추출물(CSE1) 및 배유 70% ethanol 추출물(CSE2) 가운데 CSE1이 가장 높은 활성을 나타내었으며, CSE1의 용매분획물 가운데 ethylacetate 층이 2 mg/mL의 농도에서 라디칼소거능이 73.81% 그리고 총항산화력이 56.64 mg AA eq/g으로 우수한 항산화활성을 나타내었다. 또한 ACE 저해활성과 $\alpha$-glucosidase 억제활성도 CSE1이 각각 31.63% 및 45.17%로 가장 높은 활성을 나타내었다. 각각의 추출물에 대한 유방암, 간암, 폐암, 대장암 및 전립선암 세포에 대한 증식억제효과는 모든 암세포에 대하여 5mg/mL의 농도에서 종피 ethanol 추출물(CSE1)이 가장 높은 암세포 증식억제효과를 보였다.

Keywords

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