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Position: Home > Articles > Comparative Study of Effects of Pulsed Electric Field (PEF) and Ultra-high Temperature (UHT) Processing on Flavor Compounds in Milk FOOD SCIENCE 2009,30 (11) 43-46

高压脉冲电场对牛奶中风味物质的影响

作  者:
王艳芳;杨瑞金;赵伟;梁琦
单  位:
江南大学;江南大学食品学院
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
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。
译  名:
Comparative Study of Effects of Pulsed Electric Field (PEF) and Ultra-high Temperature (UHT) Processing on Flavor Compounds in Milk
作  者:
WANG Yan-fang1, YANG Rui-jin2,*,ZHAO Wei1,LIANG Qi1 (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)
关键词:
pulsed electric field;milk;volatile component;SPME-GC-MS
摘  要:
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.

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