华南理工大学学报(自然科学版) ›› 2006, Vol. 34 ›› Issue (3): 82-85,94.

• 食品科学与技术 • 上一篇    下一篇

熊犍1 冯凌凌1 叶君2   

  1. 1.华南理工大学 轻化工研究所,广东 广州 510640;2.华南理工大学 制浆造纸工程国家重点实验室,广东 广州 510640
  • 收稿日期:2005-03-18 出版日期:2006-03-25 发布日期:2006-03-25
  • 通信作者: 熊犍(1965-),男,博士,副教授,主要从事天然产物的性质与功能研究 E-mail:lejxiong@suet.edu.cn
  • 作者简介:熊犍(1965-),男,博士,副教授,主要从事天然产物的性质与功能研究
  • 基金资助:

    国家自然科学基金资助项目(20436020,50573025)

Influence of Ultrasonic Radiation on Extraction of Corn Carotenoids

Xiong Jian1  Feng Ling-ling1  Ye Jun2   

  1. 1.Research Institute of Light Industry and Chemical Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong.China;2.State Key Laboratory of Pulp and Paper Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2005-03-18 Online:2006-03-25 Published:2006-03-25
  • Contact: 熊犍(1965-),男,博士,副教授,主要从事天然产物的性质与功能研究 E-mail:lejxiong@suet.edu.cn
  • About author:熊犍(1965-),男,博士,副教授,主要从事天然产物的性质与功能研究
  • Supported by:

    国家自然科学基金资助项目(20436020,50573025)

摘要: 采用超声辐射提取玉米类胡萝卜素,并用FFIR表征其结构.结果表明,在38~40℃ ,玉g/乙醇的质量比为1:6,20kHz和900W的超声波作用下提取30min所得到的玉米类胡萝I、紊的质量浓度是无超声辐射时的16.25倍;在33~35℃下,所提取的玉米类胡萝I、.紊的质量浓度随超声功率的增大而增大;超声频率对类胡萝卜素提取的影响不大;提取初期超声声源在液面1/2处,而12 rain后在液面1/3—1/2处有利于类胡萝卜紊的提取.文中还对超声强化提取玉米类胡萝I、紊的机理进行了探讨.FTIR分析结果表明,超声作用没有改变玉米类胡萝I、紊的结构.

关键词: 超声辐射, 玉米类胡萝卜素, 提取, 超声频率, 超声功率

Abstract:

The effect of ultrasonic radiation on the extraction of carotenoids from corn was investigated and the structure of extracted carotenoids was characterized by FTIR.The resuhs show that.when the mass ratio of corn to ethanolis 1:6.the ultrasonic radiation with a frequency of 20 kHz and a power of 900 W at 33~4O℃ f0r 30 min may result ifl an increased mass fraction of carotenoids.which is 16.25 times that wifhout ultrasonic treatment.and that the mass fraction of carotenoids increases with ultrasonic power at 33~35 ℃,little influence on the extraction of corn carotenoids being caused by ultrasonic frequency.The resuhs also indicate that,at the first extraction stage,the Sonic Horn should be immerged half depth into the extraction liquid.and after an extraction for 12 min.it should be immerged 1/2~1/3 depth into the extraction liquid.Moreover.the mechanism of ultrasonic enhance.ment on the extraction of COITI carotenoids was discussed in this papbr.The final results obtained by FTIR reveal that ultrasonic has no effect on the chemical structure of corn carotenoids.

Key words: ultrasonic radiation, corn carotenoid, extraction, ultrasonic frequency, ultrasonic power