食品科学 ›› 2009, Vol. 30 ›› Issue (11): 43-46.doi: 10.7506/spkx1002-6630-200911008

• 基础研究 • 上一篇    下一篇

高压脉冲电场对牛奶中风味物质的影响

王艳芳1,杨瑞金2,*,赵 伟1,梁 琦1   

  1. 1.江南大学 食品科学与技术国家重点实验室 2.江南大学食品学院
  • 收稿日期:2008-09-09 修回日期:2009-01-07 出版日期:2009-06-01 发布日期:2010-12-29
  • 通讯作者: 杨瑞金2,*, E-mail:yrj@jiangnan.edu.cn
  • 基金资助:

    国家自然科学基金项目(20772049);国家“863” 计划项目(2007AA100405)

Comparative Study of Effects of Pulsed Electric Field (PEF) and Ultra-high Temperature (UHT) Processing on Flavor Compounds in Milk

WANG Yan-fang1, YANG Rui-jin2,*,ZHAO Wei1,LIANG Qi1   

  1. (1.State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China;
    2.School of Food Science and Technology, Jiangnan University, Wuxi 214122, China)
  • Received:2008-09-09 Revised:2009-01-07 Online:2009-06-01 Published:2010-12-29
  • Contact: YANG Rui-jin2,*, E-mail:yrj@jiangnan.edu.cn

摘要:

本实验采用SPME-GC-MS 联用的方法,对鲜牛乳、UHT 灭菌牛奶和高压脉冲电场(PEF)处理(35kV/cm,400μS,200Hz)牛乳的风味成分进行分析。从鲜牛乳、UHT 灭菌乳和PEF 处理乳分别鉴定出19、17、18 种主要挥发性化合物。通过对不同处理方式牛乳挥发性风味成分的比较研究,PEF 处理较UHT 处理对牛乳中风味物质影响较小,且产生较少的与蒸煮味相关的含硫化合物。

关键词: 高压脉冲电场, 牛乳, 风味物质, 固相微萃取- 气相色谱- 质谱联用

Abstract:

Flavour compounds in fresh milk, UHT milk and PEF-treated milk were analysed by solid phase microwave extraction-gas chromatography-mass spectrometry (SPME-GC-MS). Nineteen, seventeen and eighteen volatile components were identified in fresh milk, UHT milk and PEF-treated milk, respectively and acetone was found to be the main constituent in PEF-treated milk. Compared to other two milks, PEF-treatment showed less effect on the contents of flavor compounds accompanied with the formation of less sulfur-containing compounds related to cooking taste.

Key words: pulsed electric field, milk, volatile component, SPME-GC-MS

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