食品科学 ›› 2008, Vol. 29 ›› Issue (9): 196-198.

• 工艺技术 • 上一篇    下一篇

超滤膜精制胭脂虫红色素的研究

 卢艳民, 周梅村, 郑华, 张弘   

  1. 昆明理工大学化学工程学院; 中国林业科学研究院资源昆虫研究所
  • 出版日期:2008-09-15 发布日期:2011-12-08

Study on Refinement of Cochineal Dye by Ultrafiltration Membrane

 LU  Yan-Min, ZHOU  Mei-Cun, ZHENG  Hua, ZHANG  Hong   

  1. 1. College of Chemical Engineering Kunming University of Science and Technology,Kunming 650224,China; 2. Research Institute of Resources Insects,Chinese Academy of Forestry,Kunming 650224,China
  • Online:2008-09-15 Published:2011-12-08

摘要: 用膜分离技术处理胭脂虫色素提取液,研究不同孔径的超滤膜对胭脂虫色素精制结果的影响,确定胭脂虫色素膜精制的方法。调节色素粗提液的pH值在4附近,静置24h后滤去沉淀,所得液体用截留分子量为5kD的螺旋卷式再生纤维素超滤膜进行精制,可以截留73%虫体蛋白,提高胭脂虫红色素的纯度,胭脂虫红酸含量可达54%。

关键词: 胭脂虫红色素, 超滤膜, 精制

Abstract:
【Abstract】 Cochineal extract was filtrated by ultrafiltration membrane with different aperturs, and the effects of different ultrafiltration proceses were studied. The optimum ultrafiltration process was determined as follows:after adjusting crude extracting solution of cochineal dye at pH 4, standing for 24 h, and then filtrating the supernatant by the spiral-renewable cellulose membrane with molecular weight cut-off of 5000. By this process 73% cochineal protein can be removed out of the cochineal extract, the purity of cochineal dye is increased, and the content of carminic acid reaches 54%.

Key words: cochineal dye, ultrafiltration membrane, refinement