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食品与发酵工业  2020, Vol. 46 Issue (4): 197-203    DOI: 10.13995/j.cnki.11-1802/ts.022586
  生产与科研应用 本期目录 | 过刊浏览 | 高级检索 |
不同杀青温度对绿茶香型形成的影响
汪蓓, 舒娜, 陆安霞, 廖雪利, 闫敬娜, 谢关华, 童华荣*
(西南大学 食品科学学院,重庆,400715)
Aroma formation of green tea effected by different pan-fire temperature
WANG Bei, SHU Na, LU Anxia, LIAO Xueli, YAN Jingna, XIE Guanhua, TONG Huarong*
(College of Food Science, Southwest University, Chongqing 400715,China)
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摘要 该研究采用定量描述分析(quantitative descriptive analysis, QDA)结合主成分分析(principal components analysis, PCA)对不同温度杀青制得的样品进行香气感官品质评价,运用气相色谱质谱联用技术(gas chromatography-mass spectrometry, GC-MS)对样品挥发性化合物进行检测,并计算化合物气味活性值(odor activity value, OAV)以比较不同杀青温度对绿茶香型形成的影响。结果显示,与各香气属性相关,阈值较低的化合物是绿茶香型差异的关键如芳樟醇、香叶醇、β-环柠檬醛等;270、320、370 ℃杀青温度制得样品分别呈现明显的青气,甜香,清香和花香。不同杀青温度可通过影响挥发性化合物组成和相对含量以实现不同香型绿茶的加工。
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汪蓓
舒娜
陆安霞
廖雪利
闫敬娜
谢关华
童华荣
关键词:  绿茶加工  挥发性化合物  杀青温度  主成分分析  气味活性值    
Abstract: Quantitative descriptive analysis (QDA) and principal component analysis (PCA) were used to analyze the sensory quality of green tea samples prepared at different temperatures in this study. Moreover, to compare the differentiation among the three green tea samples on the flavor formation, volatiles of green tea samples were detected by gas chromatography-mass spectrometry (GC-MS) following the odor activity value (OAV) of those compounds was calculated. The results showed that the compounds with lower threshold such as Linalool、Geraniol、β-cyclocitral were the key compounds for the difference in flavor type, in addition the samples were manufactured at 270, 320, and 370 ℃ owned obvious grassy, sweet and fragrant respectively. Therefore, different pan-fire temperature could be deemed as the critical factors of the aroma type of green tea by affecting its volatile compounds.
Key words:  green tea processing    volatiles    pan-fire temperature    principal component analysis    odor activity value
收稿日期:  2019-10-20                出版日期:  2020-02-25      发布日期:  2020-04-07      期的出版日期:  2020-02-25
基金资助: 重庆市现代山地特色高效农业茶叶产业技术体系(2019-6;2018-6)
作者简介:  硕士研究生(童华荣教授为通讯作者,E-mail:huart@swu.edu.cn)
引用本文:    
汪蓓,舒娜,陆安霞,等. 不同杀青温度对绿茶香型形成的影响[J]. 食品与发酵工业, 2020, 46(4): 197-203.
WANG Bei,SHU Na,LU Anxia,et al. Aroma formation of green tea effected by different pan-fire temperature[J]. Food and Fermentation Industries, 2020, 46(4): 197-203.
链接本文:  
http://sf1970.cnif.cn/CN/10.13995/j.cnki.11-1802/ts.022586  或          http://sf1970.cnif.cn/CN/Y2020/V46/I4/197
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