共振拉曼光谱方法研究生长期与光照对树椒果实β-胡萝卜素含量的影响

Resonance Raman Spectroscopy Investigate the Impact of Growth Stage and Lighting Time on β-carotene Content in Chili Fruit

利用共振拉曼光谱技术,在体测量了室内盆栽树椒果实的拉曼光谱。实验结果表明,树椒果实的β-胡萝卜素含量随成熟期临近而增加,成熟期后(约45天)达最高值;没受光照的树椒果实β-胡萝卜素含量明显低于接受阳光照射的果实含量;生长(成熟)前期受阳光照射部位由黄白色变为紫色,其β-胡萝卜素含量高于其他部位。本文为在体分析水果蔬菜中β-胡萝卜素含量提供了方法和依据,也验证了阳光在植物生长中的作用。

We have obtained Raman spectra of indoor potted chili fruit by using resonance Raman spectroscopy.The result showed that the β-carotene content in chili fruit increased with the increasing growth time,and it reached its maximum when the growth time was about 45 days.Compared with the having sunlight,the β-carotene content of chili fruit without lighting was much lower.In earlier growth time,the color of chili fruit under the sunlight turned from yellow-white to purple,of which the β-carotene content was much higher.This paper provides a method for analyzing the content of β-carotene in vegetable fruit,and proves the effect of sunshine on plant growth.