Comprehensive Evaluation of Cigarettes' Quality Consistence with Their Routine Chemical Components

In order to find out a comprehensive method for evaluating the consistence of cigarette quality,the chemical components including total sugar,reducing sugar,total alkaloids,total volatile bases,potassium and chlorine in 15 batches of the same brand cigarette were statistically analyzed by factor analysis and grey incidence cluster analysis,and clustered according to critical value (λ) of 0.8,0.85 and 0.9.The results indicated that:in case of λ>0.8,the samples from 15 batches clustered into 3 groups,it was quite accordant with the result of sensory evaluation,though with a few exceptions;in case of λ>0.85,4 clusters were obtained;in case of λ>0.9,7 clusters were obtained.It suggested that,combining factor analysis with grey incidence cluster,the routine chemical components in different batches of the same brand cigarette could provide a reference for quality consistence evaluation.