The Dynamic Changes of Major Chemical Components of Flue-curing Tobacco Leaf in Bulk-curing of Different Wet Bulb Temperature of Key Temperatures
The experiment was conducted to solve the insufficient degradation of dry matter and inadequate aroma matter in flue-cured tobacco leaf in application of bulk-curing barn. 'K326' was used as the material in experiment, and the dynamic changes of major chemical components of flue-curing tobacco leaf in bulk-curing of different stable time of key temperatures were evaluated in Liuyang City of Hunan Province. The results indicated that: (1)in 0-42℃ during the bulk curing process, the starch decreased fast, while total sugar and reducing sugar content and ratio of total sugar with nicotine increased fast. In 42-47℃ during the bulk curing process, the starch decreased slowly, while total sugar and reducing sugar content and ratio of total sugar with nicotine increased slowly. At later stage of bulk curing process, different chemical composition in leaves had a trend to be stable. (2)The nicotine and total nitrogen content had a trend to be decreased, while changed little. The ratio of total nitrogen with nicotine changed little. (3)The chemical components would more harmonious when wet bulb temperature proper increased in yellowing period and color fixed period.
bulk curingwet bulb temperature controlchemical componentsdynamic changes
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万方数据
维普
