Home > Archive>Volume 29, Issue 5, 2021 >556-562. DOI:10.11926/jtsb.4339
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Chemical Constituents of Coix lachryma-jobi and Their Activities on Seed Germination
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    Abstract:

    In order to understand the chemical constituents of bran shell of Coix lachryma-jobi, fifteen compounds were isolated from ethyl acetate fraction of ethanol extract by using various chromatographic methods. Based on their spectroscopic data, their structures were isolated as p-coumaric acid (1), p-coumaric acid methyl ester (2), (E)-2-hydroxyethyl-3-(4-hydroxyphenyl) acrylate (3), caffeic acid methyl ester (4), methyl (E)-3-(4-hydroxy-3-methoxyphenyl) acrylate (5), (E)-3-(4-methoxyphenyl)acrylic acid (6), 2,3-dihydroxy-1-(4-hydroxy-3-methoxyphenyl)propan-1-one (7), 2,3-dihydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)-1-propanone (8), p-hydro-xybenzoic acid (9), 3-hydroxy-4-methoxybenzoic acid (10), 1,3,5-trimethoxybenzene (11), methyl (3-hydroxy-2-oxo-2,3-dihydroindol-3-yl)-acetate (12), allantoin (13), 2-(2-hydroxyethyl)-3-methylfumaric acid (14) and 9-octadecenoic acid (15). The compounds 3, 7, 12, 13 and 14 were isolated from coix for the first time. The compounds 1, 2, 9, 10 and 11 had significant inhibitory activity on seed germination.

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魏艳梅,周丽琬,陈惠琴,杨理,杨小雨,刘凡值,梅文莉,徐幸莲,戴好富.薏苡糠壳的化学成分及其种子萌发活性研究[J].热带亚热带植物学报,2021,29(5):556~562

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History
  • Received:November 24,2020
  • Revised:January 25,2021
  • Online: September 23,2021
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