Abstract:

Abstract: This paper is aimed to discuss the contrast analysis of the In order to provide the basis information for the selection of genotype of flue-cured tobacco in west Henan, the aroma compositions and smoking quality of five main cultivated flue-cured tobacco species were determined and compared. The volatile aromatic components was determined by gas chromatography–mass spectrometry(GC/MS) and the smoking quality was evaluated by comprehensive evaluation based on hierarchical systems of unblended cigarette sensory quality. The results showed that: total contents of aroma compositions of tobacco leaves varied among different genotypes. The order of the content of aroma compositions of different genotype was ‘Luoyang 4’, ‘Zhongyan 100’, ‘K326’, ‘Yunyan 202’ and ‘Changbohuang’. Content of neophytadiene showed the consistent tendency with aroma compositions among different genotypes. Products degraded by phenylalanine in ‘K326’ were the highest，followed by ‘Zhongyan 100’, ‘Luoyang 4’. The dissolutions of browning reaction in ‘Zhongyan 100’ was the highest, followed by ‘Luoyang 4’, the lowest one was ‘Changbohuang’. ‘Luoyang 4’ had the highest content of products degraded by carotenoid and cembranenoid, followed by ‘Zhongyan 100’. The results of the smoking quality evaluation showed that cutter and lower leaves of ‘Zhongyan 100’ had the highest smoking score, followed by ‘Luoyang 4’, and ‘Changbohuang’ had the lowest score. Upper leaves of ‘Luoyang 4’ had the highest smoking score, followed by ‘Zhongyan 100’, and ‘K326’ had the lowest score.