西北地区红葡萄酒颜色微观量化分类与宏观量化分级

Micro-quantitative Classification and Macro-quantitative Gradation of Color of Dry Red Wines in Northwest China

研究了我国西北地区175款干红葡萄酒样品的CIELAB颜色特征,基于红葡萄酒颜色可视化表征方法,对供试酒样进行了颜色的微观量化分类和宏观量化分级研究。结果表明:供试酒样的颜色特征具有一定的离散性和区分度,表明酒样颜色具有多样性、独特性和差异性的特点,具备微观量化分类和宏观量化分级的基础;将175款干红葡萄酒的色调、色度和明度这3个颜色特征属性分别划分为5个类别,共得到供试酒样的125个微观颜色类别,可应用于酒样颜色特征的描述、传递与比较等;进一步基于人对红葡萄酒颜色的感官倾向构建了红葡萄酒颜色品质的宏观量化分级方法,该方法将供试酒样划分为6个宏观颜色级别,相比于其他的分类和分级方法,本文的微观量化分类和宏观量化分级方法具有客观、简便、分级效果明显,易于标准化和数字化的特点。

The CIELAB color characteristics of 175 dry red wine samples from Northwest China were studied.Based on the visual characterization method of red wine color,the micro-quantitative classification and macro quantitative gradation of color quality of the tested wine samples were conducted.The results showed that the color characteristics of all wine samples had a certain degree of dispersion and differentiation,indicating that the characteristics of wine samples’color were diversity,uniqueness and difference,which could be used as the basis of micro quantitative classification and macro quantitative gradation.The three color attributes(hue,chroma and lightness)were divided into five subclassifications respectively according to their value ranges of 175 red wine samples.Totally 125 micro color classifications of wine samples were obtained,which could be applied to the digital description,transmission and comparison of color characteristics of red wines.Based on the sensory tendency of red wine color to build red wine color quality quantitative gradation method,wine samples were divided into six macro color grades.Compared with other classification and gradation methods,the micro-quantitative classification and macro-quantitative gradation method was simple,easy,standardized,objective and digital,and its grading effect was obvious,implying the value of application and promotion of the method was high.