天然产物研究与开发 ›› 2023, Vol. 35 ›› Issue (11): 1877-1886.doi: 10.16333/j.1001-6880.2023.11.005

• 研究简报 • 上一篇    下一篇

酸豆外果皮黄酮类成分及其抗氧化活性评价

申子佳,陈飞龙,贾朝玉,李大山,张庆芝,李维熙*,王文静*   

  1. 云南中医药大学中药学院,昆明 650500
  • 出版日期:2023-11-28 发布日期:2023-11-25
  • 基金资助:
    国家自然科学基金(81960780);云南中医药大学“云中学者”青年学者项目(2018—2021)

Flavonoids from the pericarp of Tamarindus indica Linn. and their antioxidant activity

SHEN Zi-jia,CHEN Fei-long,JIA Zhao-yu, LI Da-shan,ZHANG Qing-zhi,LI Wei-xi*,WANG Wen-jing*   

  1. School of Chinese Materia Medica,Yunnan Uiniversity of Chinese Medicine,Kunming 650500,China
  • Online:2023-11-28 Published:2023-11-25

摘要:

为了研究酸豆外果皮成分及其抗氧化活性,采用现代色谱分离技术从酸豆(Tamarindus indica Linn.)外果皮丙酮提取物中分离和纯化得到18个黄酮类化合物,通过核磁共振波谱数据对它们进行鉴定,分别为木犀草素(1)、7,3′,4′-三羟基黄酮(2)、芹菜素(3)、7,4′-二羟基黄酮(4)、7,4′-二羟基-3′-甲氧基黄酮(5)、紫云英苷(6)、槲皮素(7)、山柰酚(8)、金合欢素(9)、圣草酚(10)、柚皮素(11)、紫铆素(12)、二氢山柰酚(13)、5,7,3′,5′-四羟基二氢黄酮(14)、5,6,7,4′-四羟基二氢黄酮(15)、3,5,7,3′,5′-五羟基二氢黄酮醇(16)、儿茶素(17)、表儿茶素(18)。10个化合物(24~691113~16)为首次从该属植物中分离得到;采用ORAC法体外抗氧化活性测定,发现酸豆外果皮的4份萃取物及9个化合物(127~10121317)有较好的抗氧化活性。

关键词: 酸豆外果皮, 黄酮, 分离, 结构鉴定, 抗氧化活性

Abstract:

This study aims to study the constituents from the pericarp of Tamarindus indica Linn. and their antioxidant activity. Eighteen compounds were isolated from the acetone extract by chromatographic separation technology. On the basis of NMR spectroscopic data,they were identifeid as luteolin (1),7,3′,4′-trihydroxyflavone (2),apigenin (3),7,4′-dihydroxyflavone (4),geraldone (5),astragalin (6),quercetin (7),kaempferol (8),acacetin (9),eriodictyol (10),naringenin (11),butin (12),dihydrokaempferol (13),3′,5,5′,7-tetrahydroxyflavanone (14),5,6,7,4′-tetrahydroxyflavanone (15),3,3′,5,5′,7-pentahydroxyflavanone (16),catechin (17),epicatechin (18).Ten of them (2,4-6,9,11,13-16) were isolated from this genus for the first time.By ORAC assay in vitro,it was found that four extracts and nine compounds (1,2,7-10,12,13,17) exhibited antioxidant activity.

Key words: the pericarp of Tamarindus indica Linn., flavonoids, isolation, structure identification, antioxidant activity

中图分类号:  R284.2