黄金芽与群体种制成条形、螺形红茶的颜色空间数字化分析  

Digital analysis of the color space of strip- and spiral-shaped black tea made from Huangjinya and population resources

作　　者：邱晓莹 曹思宇 陈昊东 林杰 梁秀华 QIU Xiaoying;CAO Siyu;CHEN Haodong;LIN Jie;LIANG Xiuhua(Linhai Special Product Technology Promotion Station,Linhai 317000,Zhejiang;College of Tea Science and Tea Culture,Zhejiang A&F University,Hangzhou 311300,Zhejiang;Shaoxing Economic Crop Technology Extension Center,Shaoxing 312000,Zhejiang)

机构地区：[1]临海市特产技术推广总站,浙江临海317000 [2]浙江农林大学茶学与茶文化学院,浙江杭州311300 [3]绍兴市经济作物推广中心,浙江绍兴312000

出　　处：《浙江农业科学》2024年第6期1445-1450,共6页Journal of Zhejiang Agricultural Sciences

基　　金：2024年浙江省茶叶专家团队项目。

摘　　要：基于颜色空间的数字化评价方法,研究不同品种制成的2种典型外形红茶的色泽品质差异。将群体种、黄金芽品种茶鲜叶,分别加工成条形和螺形红茶,再利用HSV颜色空间获取干茶、茶汤和叶底的色泽构成、HSV分量均值,进一步得到色泽拟合色卡和多变量可视化结果,并与人工感官审评结果作对比分析。条形红茶干茶色泽黑色占比显著高于螺形,条形红茶茶汤中橙色比例显著高于螺形;黄金芽品种的红茶茶汤的H、V分量均值则显著高于群体种,品种对螺形茶的色泽影响较条形茶更大。而HSV颜色空间数字化评价技术可以精准地量化、可视化人眼无法识别的颜色特征差异,在茶叶色泽品质评价的客观性、可追溯和数字化储存方面具有较好的应用前景。The digital evaluation method based on color space was used to study the difference of color quality of two kinds of black tea with different shapes.The fresh leaves of population resources and Huangjinya variety were processed into strip-shaped and spiral-shaped black tea respectively,furthermore,the results of color matching card and multivariate visualization were obtained and compared with the results of artificial sensory evaluation.The percentage of black of strip-shaped dry tea is significantly higher than that of spiral,the percentage of orange of strip-shaped dry tea is significantly higher than that of spiral,and the mean value of H and V components of black tea of Huangjinya is significantly higher than that of population resources,the effect of varieties on the color of spiral tea was greater than that of strip tea.The digital evaluation technique of HSV color space can accurately quantify and visualize the difference of color features that can not be recognized by human eyes,it has good application prospect in objectivity,traceability and digital storage of tea color quality evaluation.

关 键 词：红茶 数字化评价 HSV颜色空间 色泽品质 

分 类 号：S571.1[农业科学—茶叶生产加工]