高等学校化学学报

高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (11): 2554.

• 研究论文 • 上一篇    下一篇

玉米苞叶中新黄酮类化合物的分离和鉴定

张沐新, 刘银燕, 孙薇, 杨晓虹, 王广树   

  1. 吉林大学药学院,   长春  130021
  • 收稿日期:2010-12-14 修回日期:2011-02-27 出版日期:2011-11-10 发布日期:2011-10-14
  • 通讯作者: 王广树 E-mail:wgs@jlu.edu.cn

Isolation and Identification of Novel Flavonoids from the Bract of Zea mays L

ZHANG Mu-Xin, LIU Yin-Yan, SUN Wei, YANG Xiao-Hong, WANG Guang-Shu*   

  1. School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
  • Received:2010-12-14 Revised:2011-02-27 Online:2011-11-10 Published:2011-10-14
  • Contact: WANG Guang-Shu E-mail:wgs@jlu.edu.cn

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被引次数

18

摘要： 从玉米(Zea mays L)苞叶乙醇提取物中分离得到了4个黄酮类化合物, 采用UV, IR, MS, 1D NMR和2D NMR方法对化合物的结构进行了鉴定, 它们分别为苜蓿素(1)、苜蓿素-5-O-β-D-吡喃葡萄糖苷(2)、苜蓿素-7-O-β-D-吡喃葡萄糖苷(3)和苜蓿素-7-O-[β-D-呋喃芹糖基-(1→2)]β-D-吡喃葡萄糖苷(4). 其中, 化合物4为新化合物, 化合物1~3为首次从该植物中分离得到.

关键词: 玉米, 玉米苞叶, 黄酮类化合物, 苜蓿素

Abstract: Zea mays(maize), a member of the Poaceae, is the most economically important crop in China, about 24 million hectares of Zea mays has been cultivated each year in China, there is about 600 kg of the bract of Zea mays per hectare, and thus the resources of the bract of Zea mays is extremely rich.  Although there are some pharmacological activity researches about  radical scavenging activity against hydroxyl radical and superoxide anion radical, reducing blood lipid and inhibiting arteriosclerosis, the studies on phytochemical constituents of the bract of Zea mays have not  been reported. In order to utilize the resources of the bract of Zea mays, we investigated the chemical constituents of the bract of Zea mays. The air-dried bract of Zea mays was extracted with 95% ethanol at room temperature, the extract was subjected to Diaion AB-8 column chromatography eluated with ethanol-H2O, and the eluate was further chromatographed on silica gel and Sephadex LH-20 columns repeatedly to yield 4 flavonoid compounds. Their structures were identified as tricin(1), tricin 5-O-β-D-glucopyranoside(2), tricin 7-O-β-D-glucopyranoside(3), tricin 7-O-[β-D-apifuranosyl(1→2)]-β-D-glucopyranoside(4) by spectral analysis(UV, IR, MS and 1D, 2D NMR), respectively. Among them, compound 4 is a new flavonoid compound, compounds 1, 2 and 3 are firstly isolated from this plant.

Key words: Zea mays L., Bract of Zea mays, Flavonoid, Tricin

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