食品科学 ›› 2010, Vol. 31 ›› Issue (3): 220-223.doi: 10.7506/spkx1002-6300-201003051

• 营养卫生 • 上一篇    下一篇

山楂黄酮提取物的抗氧化活性和细胞生长抑制作用

柳 嘉1,David Glen POPOVICH2,景 浩1,*   

  1. 1.中国农业大学食品科学与营养工程学院 2. 新加坡国立大学化学系
  • 收稿日期:2009-04-23 出版日期:2010-02-01 发布日期:2010-12-29
  • 通讯作者: 景浩 E-mail:haojing@cau.edu.cn
  • 基金资助:

    新加坡国立大学与中国农业大学国际合作交流基金资助项目;“十一五”国家科技攻关项目(2006BAD27B04)

Hawthorn Flavonoid Extract: Antioxidant Activity and Growth Inhibition Effect on Cancer Cells

LIU Jia1,David Glen POPOVICH2,JING Hao1,*   

  1. 1.College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China;
    2. Department of Chemistry, National University of Singapore, Kent Ridge 117543, Singapore
  • Received:2009-04-23 Online:2010-02-01 Published:2010-12-29
  • Contact: JING Hao E-mail:haojing@cau.edu.cn

摘要:

目的:研究山楂(Crataegus pinnatifida Bunge)黄酮提取物的抗氧化能力以及对人肝癌Hep-G2 细胞和人肠癌Caco-2 细胞生长抑制作用。方法:比较测定总黄酮含量的直接法和两种铝盐显色法,进一步采用硝酸铝盐显色法测定提取物总黄酮含量,ABTS 法和DPPH 法分析提取物的抗氧化活性,MTT 法评价山楂黄酮提取物对细胞生长的抑制效果。结果:山楂黄酮提取物中黄酮含量占干质量的98%,清除ABTS 和DPPH 自由基的能力随提取物剂量的增加而升高,EC50 分别为88μg/mL 和112μg/mL,而标准品Trolox 的EC50 清除ABTS 和DPPH 自由基的能力分别为111μg/mL 和118μg/mL。山楂黄酮提取物能够有效地抑制癌细胞的生长,且对Hep-G2 细胞的抑制效果更强,Hep-G2 细胞和Caco-2 细胞的IC50 分别约为115μg/mL 和376μg/mL。结论:山楂黄酮提取物黄酮含量高,抗氧化能力强,有抑制癌细胞的作用,是一种有效的天然抗氧化剂。

关键词: 山楂黄酮提取物, 抗氧化, Hep-G2 细胞, Caco-2 细胞, 生长抑制

Abstract:

Objective: To study antioxidant activity of hawthorn (Crataegus pinnatifida Bunge) flavonoid extract (HFE) as well as its growth inhibition effect on Hep-G2 and Caco-2 cells. Methods: Total flavonoid content was determined by NaNO2-Al(NO3) 3 colorimetric method. Antioxidant activity was evaluated by 2,2’-azinobis(3-ethylbenzothiazoline-6-suslfonic acid (ABTS) and 1,1-diphenyl-2-picryl-hydrazyl (DPPH) free radical scavenging assays. Cell growth inhibition effect of HFE was assessed by MTT assay. Results: Flavonoids were dominant in HFE with a content of 98% (calculated on the basis of dry weight). Both ABTS and DPPH scavenging capacities exhibited an increase with increasing HFE concentration. The EC50s of HFE was 88μg/mL and 112μg/mL in ABTS and DPPH assays, respectively; while those of Trolox were 111μg/mL and 118μg/mL. Cell growth of Hep-G2 and Caco-2 cells were remarkably inhibited by HFE in a dose-dependent manner. Whereas, HFE had stronger growth inhibition effect against Hep-G2 cells than against Caco-2 cells. The IC50s of HFE were 115μg/mL and 376μg/mL for Hep-G2 and Caco-2 cells, respectively. Conclusion: HFE has high content of flavonoids, strong antioxidant activity, and strong inhibitory effect against cancer cell growth. Therefore, it has a promising potential as an effective natural antioxidant and an anticancer functional component.

Key words: hawthorn flavonoid extract, antioxidant activity, Hep-G2 cell, Caco-2 cell, growth inhibition

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