食品科学 ›› 2008, Vol. 29 ›› Issue (9): 591-594.

• 营养卫生 • 上一篇    下一篇

番茄红素在体内代谢中的几何异构体组成变化

 李京, 惠伯棣   

  1. 首都师范大学生命科学学院; 北京联合大学应用文理学院;
  • 出版日期:2008-09-15 发布日期:2011-12-08

Variation in Geometrical Isomer Composition of Lycopene in Rat Body

 LI  Jing, HUI  Bo-Di   

  1. 1. College of Life Science,Capital Normal University,Beijing 100037,China; 2. College of Arts and Science,Beijing Union University,Beijing 100083,China
  • Online:2008-09-15 Published:2011-12-08

摘要: 目的:探索天然番茄红素分子在大鼠体内吸收、转运和贮存过程中的几何异构体组成的变化。方法:用天然番茄红素萃取物一次灌喂雄性SD大鼠后,收集其粪便、小肠壁、血清及肝脏,萃取其中的类胡萝卜素组分,用C30-HPLC-PDA检测萃取物中番茄红素几何异构体的组成。结果:天然番茄红素在大鼠体内吸收、转运和贮存过程中几何异构体组成发生了显著变化,顺式异构体的比例大幅度上升。这一变化被证实发生在血清中。这一结果对天然番茄红素在体内的代谢研究具有重要意义。

关键词: 番茄红素, 几何异构, 代谢

Abstract: Objective:This study aimed at investigation into variation in geometrical isomer composition of natural lycopene in absorption, transportation and storage in rat body Method: Experimentally, after a single gastric administration of nature lycopene extract, the feces, the wall tissues of small intestine, serum and liver of male SD rats were collected. Total carotenoid fraction was extracted from those and detected by C30-HPLC-PDA. Results: Data of HPLC anaiysis suggested that the isomer composition of lycopene fraction varies drastically during its absorption, transportation and storage in rat body. The total amount of Z-isomers increases significantly. It was proved that this change takes place in serum. This result shows an importance in study on lycopene metabolism in vivo.

Key words: lycopene, geometrical isomerisation, metabolism