卷烟感官标准样品新旧定值的对比分析

Comparative Analysis Between New and Old Definite Values of Sensory Standard of Cigarette Samples

为准确把握《卷烟》国家标准的感官技术要求,顺利实现新老国标的平稳过渡,采用统计技术对卷烟感官标准样品的新旧定值进行了对比分析。结果表明,新定值与旧定值相比,各定值项目间的正相关性均有所提高,其中刺激性与其它定值项目间的正相关性有较大幅度提高;对香气、杂气、刺激性和余味4个项目的分辨率提高;各定值项目对标样的区分度有所变化,如刺激性对高、中、低档标样的区分度有所提高;对于总分定值,高档标样略有提高,低档标样略有下降,中档标样持平。

In order to better understand the teehnieal requirements of sensory evaluation in national eigarette standard and aehieve smooth transition from old to new standards, the new and old definite values of sensory standard were eompared statistieally. The results showed that, eomparing with the old ones, the new definite values raised the degree of positive eorrelation between items, the positive correlation between irritaney and other items inereased signifieantly ; the distinguishability of aroma, offensive taste, irritaney and aftertaste were improved; the degree of diserimination of items against standard samples varied, for example, that of irritaney against high, middle and low elass standard samples increased to some extent; the new definite value of total scores increased slightly for high class standard samples, while that for low class decreased slightly, and that of middle class kept the same level.