食品科学 ›› 2006, Vol. 27 ›› Issue (11): 319-322.

• 工艺技术 • 上一篇    下一篇

万寿菊提取物中游离叶黄素的制备及纯化

  彭密军,  印大中,  刘立萍, 彭胜, 贺安海   

  1. 吉首大学湖南省林产化工工程重点实验室; 湖南师范大学生命科学学院
  • 出版日期:2006-11-15 发布日期:2011-11-28

Preparation and Purification of Free Lutein from Tagetse erecta L. Extract

  Peng-Mi-Jun,   Yin-Da-Zhong,   Liu-Li-Ping, PENG  Sheng, HE  An-Hai   

  1. 1.Key Laboratory of Hunan Forest Products and Chemical Industry Engineering,Jishou University,Zhangjiajie 427000,China;2.College of Life Sciences,Hunan Normal University,Changsha 410081,China
  • Online:2006-11-15 Published:2011-11-28

摘要:  以万寿菊正己烷提取物为原料,系统地考察了由万寿菊提取物制备游离叶黄素的条件,并对粗产品进行纯化。在单因素试验的基础上,用L16(45)正交试验对游离叶黄素的制备工艺进行优化,以皂化液浓度、液料比、皂化温度以及皂化时间为因素,以游离叶黄素的含量为指标进行试验,得到最佳的制备条件;并对硅胶柱层析纯化的梯度洗脱条件进行摸索;采用薄层色谱扫描法进行测定。确定最佳皂化制备条件是:皂化液为35%的KOH-甲醇,液料比20:1(ml/g),皂化温度55℃,皂化时间4h;在此条件下,可使游离叶黄素的含量由原料中的0.25%上升到45.59%,通过硅胶柱层析纯化后,游离叶黄素的含量可提高到93.55%。

关键词:  , 游离叶黄素, 万寿菊提取物, 皂化, 硅胶柱层析, 纯化

Abstract:  In this paper,saponification technology of lutein esters in Tagetse erecta L. extract to free lutein and its purification were investigated systemically. An orthogonal test table L16(45) was used to optimized the affecting factors such as the concentration of KOH in methanol (reaction solution),the ratio of reaction solution to material (ml/g),reaction temperature and reaction time on the base of single factor experiments. Gradient elution method was used to obtain purified free lutein. The content of free lutein in the end product was determined by TLC scanning method. The results showed that the optimal saponification parameter wa35% KOH-methanol at the ratio of 20:1(ml/g),55℃ and 4h. Under this condition,the content of free lutein can reach from 0.25% in the material to 45.59% in the saponified product and to 93.55% in the purified product.

Key words: free lutein, Tagetes erecta L.extract, saponification, silica gel column chromatography, purification