基于GC_MS指纹图谱和化学计量_省略_析鉴别预包装纯葡萄汁及葡萄汁制品_李宝丽.doc

食品科学 156 2015, , ※成分分析基于 GC-MS 指纹图谱和化学计量分析鉴别预包装纯葡萄汁及葡萄汁制品* 李宝丽 1 ,朱宇轩 1 ,邓建玲 1 ,谭军 1 ,刘睿 1, ,王红 2 ,李涛 2 ,周胜银 2 ( ,环境食品学教育部重点实验室,湖北武汉 ,湖北武汉 430061 ) 430070 ; 摘要: 采用顶空固相微萃取-气相色谱-质谱联用技术研究预包装纯葡萄汁的香气成分,建立其香气成分的气相色谱-质谱指纹图谱,结合化学计量分析对 3个产地的混合果汁、纯葡萄汁、葡萄汁饮料共 3类预包装葡萄汁制品进行鉴别。结果表明:预包装纯葡萄汁中主要香气成分共 38种,所建立香气成分的气相色谱-质谱指纹图谱中共分析出 15个特征峰,其峰面积之和占总峰面积的 95% 以上。利用夹角余弦法和相关系数法对指纹图谱进行分析,发现气相色谱-质谱指纹图谱相似度与其品质呈正相关。所建立的香气成分指纹图谱结合化学计量分析能准确将预包装混合果汁、葡萄汁饮料和纯葡萄汁鉴别区分。关键词: 预包装纯葡萄汁;香气成分;气相色谱-质谱指纹图谱;化学计量分析;质量评价 Discrimination of Prepackaged Pure Grape Juice and mercial Products Based on Gas Chromatography-Mass Spectrometry Fingerprints and Chemometrics Methods LI Baoli (1. Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; 2. Hubei Research Institute of Products Quality Supervision and Inspection, Wuhan ,ZHU Yuxuan , DENG Jianling , TAN Jun, LI Tao , ZHOU Shengyin , LIU Rui 1,* , WANG Hong 1111222 430061, China) Abstract: The ponents of prepackaged pure grape juice were investigated and their gas chromatography-mass spectrometry (GC-MS) fi ngerprints were established by solid phase micro-extraction-gas chromatography-mass spectrometry (SPME-GC-MS) combined with similarity evaluation for the first time. By utilizing the fingerprinting, the qualities of 3 kin