番茄红素的异构化研究  

Isomerization of Lycopene

作　　者：刘庆辉 方泽华 廖艳金 叶振兴 

机构地区：[1]广州巨元生化有限公司,广东广州510730

出　　处：《广州化工》2017年第13期69-70,90,共3页GuangZhou Chemical Industry

摘　　要：番茄红素是一种不含氧的类胡萝卜素,广泛存在于自然界的各种植物中。番茄红素存在多种顺反异构体,天然番茄红素以全反式结构为主,其异构化反应在一定条件下是可逆的。本文主要研究将顺式番茄红素异构化为全反式的,分别在以乙二醇及仲丁醇为溶剂,尿素为催化剂,硫酸钠和亚硫酸氢钠为助催化剂的体系中,加热至90℃进行热异构化,得到全反式占比85%以上的番茄红素。Lycopene is a kind of oxygen-free carotenoids,widely founded in various plants in nature.Lycopene is present multiple cis and trans isomers,the natural all-trans lycopene-based structure,which is reversible in the isomerization reaction under certain conditions.The cis lycopene was isomerized to all-trans,respectively,sec-butanol and ethylene glycol as a solvent and urea as a catalyst,sodium sulfate and sodium hydrogen sulfite as cocatalyst systems,heating to 90 ℃ for thermal isomerization,to obtain all-trans accounted for more than 85% of lycopene.

关 键 词：番茄红素 尿素 乙二醇 仲丁醇 异构化 

分 类 号：O626.2[理学—有机化学]