Study on the effects of storage methods on conventional chemical compositions and aroma components of tobacco leaves
In order to study the effects of storage methods on the conventional chemical compositions and aroma components of tobacco leaves,BFS and CFS tobacco leaves(the variety is Yunyan 87)from Yongzhou,Hunan were used as raw materials,the contents of their conventional chemical compoonents and important volatile aromacompo-nents in different aging times(3,9,12,15,18 months)and different storage warehouses(mechanical warehouse,natural warehouse and moisturizing warehouse)were analyzed by principal component analysis.The results showed that:① During the aging process,the all contents of reducing sugar and total sugar in both tobacco leaves in differ-ent storage warehouses showed a downward trend,and the reduction of total sugar content was the greatest.②During the aging process,the total amount of volatile aroma components and the content of neophytadiene in tobacco leaves from Hunan Yongzhou in different storage warehouses gradually increased.After 18 months of aging,the total amount of volatile aroma components and the content of neophytadiene were the highest in Hunan Yongzhou BFS tobacco leaves in the moisturizing warehouse and Hunan Yongzhou CFS tobacco leaves in the mechanical warehouse.③Prin-cipal component analysis showed that after 18 months of aging,except for the principal components of volatile aroma compounds from Hunan Yongzhou BFS tobacco leaves in natural warehouse and moisturizing warehouse showing lit-tle difference,the principal components of volatile aroma compounds from the tobacco leaves in different warehouses were obviously different.In conclusion,Hunan Yongzhou BFS tobacco leaves were more suitable for aging in mois-turizing warehouse,while Hunan Yongzhou CFS tobacco leaves were more suitable for aging in mechanical ware-house.
万方数据
维普
