食品科学

• 基础研究 • 上一篇    下一篇

超声处理对琯溪蜜柚皮中多组分酚酸稳定性的影响

马亚琴1,叶兴乾2,吴厚玖1,王 华1,孙志高1   

  1. 1.西南大学柑桔研究所,国家柑桔工程技术研究中心,重庆 400712;
    2.浙江大学生物系统工程与食品科学学院,浙江 杭州 310029
  • 出版日期:2013-10-15 发布日期:2013-09-27
  • 通讯作者: 马亚琴
  • 基金资助:

    国家自然科学基金青年科学基金项目(31201459);重庆市自然科学基金项目(cstc2011jjA80030)

Effect of Ultrasound Treatment on the Stability of Phenolic Acids from Guanxi Pomelo Peel

MA Ya-qin1,YE Xing-qian2,WU Hou-jiu1,WANG Hua1,SUN Zhi-gao1   

  1. 1. National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing 400712, China;
    2.College of Biosystem Engneering and Food Science, Zhejiang University, Hangzhou 310029, China
  • Online:2013-10-15 Published:2013-09-27
  • Contact: MA Ya-qin

摘要:

利用60kHz超声波辅助提取琯溪蜜柚果皮中的肉桂酸型酚酸和苯甲酸型酚酸,通过高效液相检测了酚酸含量,比较探讨超声波对酚酸稳定性的影响。结果表明:在相对较高的温度(40℃)下超声处理60min造成7种酚酸不同程度的降解,但超声功率对酚酸稳定性的影响趋势与超声时间和温度有所不同。总体而言,苯甲酸型酚酸其热稳定性高于肉桂酸型酚酸,此外,单个组分的酚酸其最佳的超声条件和降解幅度是不同的。

关键词: 超声辅助提取, 琯溪蜜柚皮, 酚酸, 稳定性

Abstract:

Benzoic-type and cinnamic-type phenolic acids were extracted from Guanxi pomelo peel by ultrasoundassisted
extraction with a 60 kHz frequency. High-performance liquid chromatography (HPLC) coupled with a
photodiode array detector was applied for the analysis of phenolic acids after alkaline hydrolysis, and the effect of
ultrasound on the stability of phenolic acids was investigated. The results showed that seven phenolic acids underwent
different degrees of degradation during 60 min of ultrasound treatment at a relatively higher temperature of 40 ℃, but
ultrasound power did not have the same effect on the stability of phenolic acids in pomelo peel as treatment time or
temperature. The heat stability of benzoic-type phenolic acids was overall better than that of cinnamic-type phenolic
acids. Furthermore, the optimal extraction conditions of individual phenolic acids were different showing different
degrees of degradation.

Key words: ultrasound-assisted extraction, Guanxi pomelo peel, phenolic acids, stability

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