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中国农学通报 ›› 2019, Vol. 35 ›› Issue (13): 36-41.doi: 10.11924/j.issn.1000-6850.casb19010129

所属专题: 玉米

• 农学 农业基础科学 • 上一篇    下一篇

高效液相色谱法测定玉米幼苗叶片中4种酚酸类化合物

周亚萍1, 魏东伟1, 孙武勇2, 任园宇1   

  1. 1.河南农业大学生命科学学院;2.河南安必诺检测技术有限公司
  • 收稿日期:2019-01-25 修回日期:2019-04-10 接受日期:2019-03-25 出版日期:2019-05-05 发布日期:2019-05-05
  • 通讯作者: 魏东伟
  • 基金资助:
    河南农业大学自然科学类青年创新基金“基于纳米材料及其复合物的抗氧化能力评价方法研究”(KJCX2015A14)。

Determination of Four Phenolic Acids in Leaves of Maize Seedlings by High Performance Liquid Chromatography

  • Received:2019-01-25 Revised:2019-04-10 Accepted:2019-03-25 Online:2019-05-05 Published:2019-05-05

摘要: 为研究干旱胁迫前后玉米幼苗叶片中4 种酚类物质的变化,采用高效液相色谱法(HPLC),以Thermo Scientific Syncronis C18 (4.6 mm×250 mm,5 μm)为分析柱,乙腈-0.5%乙酸溶液梯度洗脱,流速1.0 mL/min,检测波长280 nm,柱温30℃,对不同品种玉米幼苗叶片中的没食子酸、香豆酸、绿原酸、咖啡酸含量进行测定。结果表明,4 种酚酸化合物的浓度在1~100 mg/L范围内与峰面积线性关系良好,相关系数R2均大于0.999,加标回收率和精密度RSD 结果均满足分析要求;玉米幼苗叶片中香豆酸含量较高、没食子酸含量较少,干旱胁迫后除咖啡酸外其他3 种酚酸含量均有下降;不同品种玉米幼苗叶片中4 种酚类物质的含量不同,且干旱胁迫后酚酸的含量变化不同,与其对干旱的敏感程度有关。

关键词: 砂姜黑土, 砂姜黑土, 耕作方式, 容重, 含水量, 硝态氮, 产量

Abstract: The aim is to study the changes of four phenolic acids in the leaves of maize seedlings before and after drought stress. The content of gallic acid, coumalic acid, chlorogenic acid and caffeic acid were quantitatively determined by High Performance Liquid Chromatography (HPLC), Thermo Scientific Syncronis C18 column (4.6 mm × 250 mm, 5 μm) as analytical column, acetonitrile- 0.5% acetic acid solution with gradient elution, 1.0 mL/min flow rate, 280 nm detection wavelength and 30℃ column temperature. The results showed that the linear relationship between peak area and 1-100 mg/L gallic acid, coumalic acid, chlorogenic acid and caffeic acid was good, the correlation coefficients (R2) were greater than 0.999. Adding standard recovery and precision RSD fulfilled the analysis requirements. The coumalic acid content was relatively high and gallic acid content was relatively low. After drought stress, the contents of the other three phenolic acids decreased except caffeic acid. The contents of four phenolic compounds in different varieties of maize seedlings was different and changed differently under drought stress, which was related to its sensitivity to drought.

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