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基于熵权法和改进TOPSIS法的烤烟质量综合评价

Comprehensive assessment of flue-cured tobacco quality based on entropy weight method and modified TOPSIS method

  • 摘要: 为了更好地进行烤烟质量综合评价,综合使用熵权法和改进的逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)对114个烤烟样品的外观质量、感官质量、常规化学成分协调性进行综合评价,得到外观质量接近度、感官质量接近度、化学成分接近度和综合质量接近度,并采用简单相关分析法分析烤烟综合质量指标与各质量接近度间的相关性。结果表明:①熵权法得到的外观质量、感官质量和常规化学成分在综合评价中的权重分别为0.316、0.380和0.304;②四川凉山州会理县太平镇、云南红河州弥勒市弥阳镇、云南红河州建水县临安镇、四川凉山州会理县黎溪镇和四川凉山州德昌县茨达镇生产的清甜香型烟叶质量较好;③与清甜香型烟叶综合质量呈正相关关系的指标包括:外观指标中的色度、身份、油分、颜色和叶片结构,感官指标中的干燥感、圆润感、香气量、杂气、透发性、余味、香气质、程度、刺激性、细腻程度和工业可用性,化学成分中的总植物碱和糖碱比。

     

    Abstract: To comprehensively assess the quality of flue-cured tobacco, an entropy weight method and a modified Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method were used to evaluate the appearance, sensory quality, and routine chemical composition consistency of 114 flue-cured tobacco samples. The proximity for the appearance, sensory quality, chemical composition, and comprehensive quality were obtained, and the correlations between the different comprehensive quality indices and each quality proximity were analyzed using a simple correlation analysis method. The results showed that: 1) The weights of the appearance, sensory quality and chemical composition calculated by the entropy weight method were about 0.316, 0.380, and 0.304, respectively. 2) The flue-cured tobacco with fresh-sweet flavor from Taiping Town, Huili County, Liangshan Prefecture, Sichuan Province; Miyang Town, Mile City, Honghe Prefecture, Yunnan Province; Lin?an Town, Jianshui County, Honghe Prefecture, Yunnan Province; Lixi Town, Huili County, Liangshan Prefecture, Sichuan Province; and Cida Town, Dechang County, Liangshan Prefecture, Sichuan Province had better comprehensive quality. 3) The indices that positively correlated with the comprehensive quality of tobacco with fresh-sweet flavor included color intensity, body, oil, color and leaf structure, the vast majority of sensory quality indices (dryness, mellowness, aroma quantity, offensive odor, volatility, aftertaste, aroma quality, extent, irritation, smoothness and industrial usability), and total alkaloids and reducing sugar/total sugar ratios in leaf chemical compositions.

     

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