脉冲电场对新鲜干红葡萄酒酚类物质和色泽影响的研究  

Effects of Pulsed Electric Fields on Phenols and Colour in Young Red Wine

作　　者：陈杰[1] 张若兵[1] 王秀芹[2] 罗炜[1] 莫孟斌[1] 王黎明[1] 关志成[1] 

机构地区：[1]清华大学深圳研究生院能源与电工新技术实验室,广东深圳518055 [2]中国农业大学食品科学与营养工程学院葡萄与葡萄酒研究中心,北京100083

出　　处：《光谱学与光谱分析》2010年第1期206-209,共4页Spectroscopy and Spectral Analysis

基　　金：国家"十一五"科技支撑计划课题项目(2006BAD05A02);深圳市科技计划项目(JC200903180542A)资助

摘　　要：以新鲜干红葡萄酒为研究对象,采用高效液相色谱(HPLC)法测定分析了脉冲电场(PEF)处理前后葡萄酒中黄烷-3-醇(flavan-3-ols)和酚酸(phenolic acids)2种酚类物质的含量变化以及葡萄酒色度与色调值的变化。实验所采用的高压脉冲电场设备为清华大学自行研制,其输出波形为指数衰减波;PEF处理系统所采用的处理室为平板处理室,电极板间距为5 mm,并且在实验过程中进行了电场参数优化。经实验研究发现,脉冲电场(电场能量密度:24.5,40.5,60.5 J·mL^(-1))处理后大部分酚类物质的含量都发生了显著变化,葡萄酒色度与色调值也有显著的提高,并且当注入电场能量密度为60.5 J·mL^(-1)时处理效果最显著。The effects of pulsed electric fields（PEFs）The effects of pulsed electric fields （PEFs） applied on the 2 phenolic acids and 3 flavan-3-ols in young red wine, as well as the changes in colour intensity and colour hue, were investigated using a parallel treatment chamber. High performance liquid chromatography （HPLC） coupled with UV visible detector was used to analyze the contents of these two phenols. The high voltage pulse generator in this experiment designed and produced by Tsinghua University can generate exponential decay pulses. The chambers of this experiment were parallel plate treatment chambers with interelectrode distances of 0.5 cm. The experimental results show that after PEF treatment （energy density： 24.5, 40. 5, 60. 5 J · mL ^-1 ） the concentration of most phenolic compounds changed significantly. Moreover, the energy density of 60.5 J · mL ^-1 was chosen as the optimal parameter.

关 键 词：脉冲电场 高效液相色谱 黄烷-3-醇 酚酸 

分 类 号：O657.3[理学—分析化学]