电子鼻检测改性聚砜膜用于啤酒澄清处理的研究  

Studies on Electronic Nose Monitoring the Beer Clarification with Modified Membrane

作　　者：张拥军[1] 蒋家新[1] 何杰民[1] 杨胜利[2] 钱俊青[2] 

机构地区：[1]中国计量学院生命科学学院,杭州310018 [2]浙江工业大学药学院,杭州310014

出　　处：《中国食品学报》2010年第6期199-203,共5页Journal of Chinese Institute Of Food Science and Technology

基　　金：浙江省科技厅重大招标科研项目资助(No.2006C12083)

摘　　要：为研究膜处理技术对啤酒风味的影响,使用自制的共混改性聚砜膜(孔径<100 nm)处理精滤前的啤酒,选用电子鼻PEN3系统对啤酒原液及膜澄清处理过的2种啤酒的芳香成分进行分析。通过电子鼻系统动态采集啤酒芳香成分,得到电子鼻的响应值,使用PCA、LDA模式识别方法进行数据分析。分析结果表明电子鼻能够快速、无损地检测到不同处理工艺对啤酒风味的影响,为检测共混改性聚砜膜对啤酒的澄清效果提供技术支持。In order to study the effect of membrane treatment technique on flavor of beer,the beer before refining filtration was treated with blend modified polysulfone membrane ultrafilter（pore size100 nm）,an electronic nose（PEN3） system was selected to monitor aroma composition in two kinds of the beer（before and after treatment with membrane）.This method firstly sampled aroma composition emanating from the beer by PEN3 systems and then obtained response values of PEN3.After this,data analysis was conducted by using principal component analysis（PCA） and linear diserimination analysis（LDA）.The results of this study showed that electronic nose was able to identify the effect of two different treatment methods on flavor of beer.The basic research data and approach were provided for the determinations of beer clarification effect with the blend modified polysulfone membrane using a portable electronic nose.

关 键 词：电子鼻 啤酒 共混改性聚砜膜 检测 

分 类 号：TS262.5[轻工技术与工程—发酵工程]