天津农学院学报 ›› 2017, Vol. 24 ›› Issue (2): 30-33.

• 研究与简报 • 上一篇    下一篇

火龙果茎和昙花茎的红外光谱差异分析

李雕1a, 杨静慧1b,通信作者, 秦艳筠1b, 黄唯子1b, 王洪妹1b, 杨仁杰1a   

  1. 1天津农学院 a.工程技术学院,b.园艺园林学院,天津 300384
  • 收稿日期:2016-05-11 出版日期:2017-06-30 发布日期:2019-10-15
  • 通讯作者: 杨静慧(1961 -),女,甘肃兰州人,教授,博士,主要从事园艺植物栽培、抗逆生理和分子育种研究。E-mail:jinghuiyang2@aliyun.com。
  • 作者简介:李雕(1992-),男,云南大理人,硕士在读,主要从事农业环境与能源工程研究。E-mail:1429980690@qq.com。
  • 基金资助:
    天津市农业科技成果转化与推广项目“彩叶树优良品种繁殖、栽培技术示范与推广”(201502100); 天津市科技成果转化及产业化推进计划项目“优质彩叶北美海棠新品种种苗的规模化繁育”(14ZXNZNC0040)

Variance of Infrared Spectra between Hylocereus undlatus and Epiphyllum oxypetalum Stem

LI Diao1a, YANG Jing-hui1b,Corresponding Author, QIN Yan-jun1b, HUANG Wei-zi1b, WANG Hong-mei1b, YANG Ren-jie1a   

  1. 1. Tianjin Agricultural University, a. College of Engineering and Technology, b. College of horticulture and landscape, Tianjin 300384,China
  • Received:2016-05-11 Online:2017-06-30 Published:2019-10-15

摘要: 为了比较火龙果与昙花的成分差异,以火龙果与昙花的茎为试验材料,采用红外光谱、二阶导数光谱和二维相关同步光谱技术对其成分进行了分析。结果表明:红外光谱图显示火龙果茎有5个明显的特征峰,昙花茎有4个;其中两者相同的吸收峰对应的官能团为C—O—C(脂肪烃)、C—O—C、N—H、O—H(二聚体),不同的吸收峰为1 041 cm-1(火龙果)、1 077 cm-1(火龙果)、1 033 cm-1(昙花);667~1 866 cm-1区间的二阶导数红外光谱图显示,火龙果茎有14个吸收峰,昙花茎有16个,955 cm-1为火龙果茎特有的吸收峰,对应的官能团为酸酐C—O;1 520 cm-1为昙花茎特有的吸收峰,对应的官能团为胺N—H;890~1 800 cm-1区间的二维相关同步红外光谱图显示,火龙果茎和昙花茎的交叉峰相同,其中1 321 cm-1与1 630 cm-1形成了较强正交叉峰,1 046 cm-1与1 634 cm-1、1 049 cm-1与1 329 cm-1形成了较弱的正交叉峰,无负交叉峰;二维相关红外光谱图显示的自动峰位置与红外光谱的一致。

关键词: 火龙果, 昙花, 红外光谱, 二阶导数, 二维相关

Abstract: In order to explore the component difference between Hylocereus undlatus and Epiphyllum oxypetalum, fourier transform infrared spectroscopy(FTIR), second derivative infrared spectroscopy and two-dimensional correlation infrared spectroscopy(2D-IR)were analysed with their stems. The infrared spectrogram showed that there were five absorption peaks in stem of H undlatus, and four in E. oxypetalum; The similar peaks of both represent the same functional groups which were C—O—C(aliphatic hydrocarbon)、C—O—C、N—H、O—H(dimer). But the differences were 1 041 cm-1 H. undlatus, 1 077 cm-1 H. undlatus, 1 033cm-1 E. oxypetalum. The fourteen intensities absorptionpeaks was shown in stem of H. undlatus and sixteenin E. oxypetalum according to the second derivative infrared spectroscopy in the range of 667-1 866 cm-1. An obvious characteristic peak was 955 cm-1 in H. undlatus corresponded to the functional group of acid anhydride C—O, and 1 520 cm-1 in E. oxypetalum corresponded to the functional group of amine N—H. There were same cross peaks between H. undlatus and E. oxypetalum,on map of 2D-IR spectroscopy in the range of 890-1 800 cm-1 especially a strong positive cross peaks in the wave number of 1 321 cm-1and 1 630 cm-1, weaker positive cross peaks in the wave number of 1 046 cm-1 &1 634 cm-1 , 1 049 cm-1 & 1 329 cm-1, without negative cross peak.The positions of automatic spectrum peak was same with the fourier transform infrared spectroscopy(FTIR)on two-dimensional correlation infrared spectroscopy(2D-IR).

Key words: Hylocereus undlatus, Epiphyllum oxypetalum, infrared spectrum, second derivative spectrometry, two-dimensional correlation spectroscopy

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