3种中支卷烟化学成分与感官质量的相关性分析OA

To study the correlation between the conventional chemical components,volatile flavor components,and sensory quality of medium-sized cigarettes,three different brands of commercially available cigarettes were selected.The relationship between their chemical component mass concentration and mass fraction and sensory evaluation scores was analyzed using partial least squares regression(PLSR).The results showed that the explained variances of X and Y in the PLSR model were 92.22％and 96.02％,respectively,and the predicted variance Q2 was 91.28％,indicating that the model was well-fitted.The variable contribution analysis showed that 20 chemical components contributed significantly to the sensory quality score of cigarettes,including 4 conventional components and 16 volatile aroma components.Principal component analysis(PCA)results showed that the characteristic components of different cigarette types were clearly separated,and the key components affecting sensory evaluation varied.The component mass concentration and mass fraction of specific compounds were positively correlated with the sensory evaluation scores of each cigarette.