| 基于熵权法和灰色关联分析的藤茶理化品质评价与分级应用 |
| |
| 引用本文： | 张敏,余佶,王琪琰,张锦程,游湘淘,姚茂君,麻成金. 基于熵权法和灰色关联分析的藤茶理化品质评价与分级应用[J]. 食品与机械, 2021, 37(1): 186-192 |
| |
| 作者姓名： | 张敏 余佶 王琪琰 张锦程 游湘淘 姚茂君 麻成金 |
| |
| 作者单位： | 吉首大学湖南省林产化工工程重点实验室;吉首大学茶叶科学研究所 |
| |
| 基金项目： | 2019年湖南省永顺县人民政府莓茶产业专项;吉首大学研究生科研创新项目资助(编号:JGY201929)。 |
| |
| 摘 要： | 以收集的10种藤茶样品为对象,测定15项藤茶相关理化品质指标,并通过变异分析、相关性分析与主成分分析确定茶汤的黄酮(A11)、多酚(A12)、可溶性糖(A13)及亮度(A3)4项核心品质指标;在采用熵权法确定品质指标权重后,结合灰色关联度分析法,构建出藤茶理化品质评价模型为:ψi=ξA11 × 0.181 1+ξA12...
|
| 关 键 词： | 藤茶 熵权法 灰色关联度 理化品质 评价模型 |
| 收稿时间： | 2020-10-07 |
Evaluation and classification for physicohemical quality of vine tea on entropy method and grey relation analysis |
| |
| ZHANGMin,YUJi,WANGQiyan,ZHANGJincheng,YOUXiangtao,YAOMaojun,MAChengjin. Evaluation and classification for physicohemical quality of vine tea on entropy method and grey relation analysis[J]. Food and Machinery, 2021, 37(1): 186-192 |
| |
| Authors: | ZHANGMin YUJi WANGQiyan ZHANGJincheng YOUXiangtao YAOMaojun MAChengjin |
| |
| Affiliation: | (Key Laboratory of Hunan Forest Products and Chemical Industry Engineering,Jishou University,Zhangjiajie,Hunan 427000,China;Institute of Tea Science,Jishou University,Jishou,Hunan 416000,China) |
| |
| Abstract: | Taking 10 kinds of vine tea samples collected as objects,15 related physicohemical quality indexes of vine tea were measured.Four core indexes of tea infusioninflavonoids(A11),polyphenols(A12),soluble sugar(A13),and brightness(A5)were determined by variation analysis,correlation analysis,and principal component analysis.After that,the index weight was determined by the entropy method,and the grey correlation analysis was used to construct the evaluation model of the physicohemical quality:φi(modelscore)=ξA11×0.181 1+ξA12×0.224 2+ξA13×0.415 4+ξA3×0.179 3,and the fitting degree between the model score and the sensory score is 0.822.Finally,according to the score of the model,the vine tea samples were divided into three levels by cluster analysis. |
| |
| Keywords: | vine tea entropy method grey correlation analysis physicohemical quality evaluation model |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《食品与机械》浏览原始摘要信息 |
|
点击此处可从《食品与机械》下载全文 |
|
