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《Chinese Tobacco Science》 2003-01
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Changes of some enzyme activites and their influence on the chemical components in flue-cured tobacco leaves

Gong Changrong Liu Dongyang(Henan Agricultural University Zhengzhou450002)  
The activities of amylase,invertase,neutral proteinase and the relevant chemical components of flue-cured tobacco from riping to aging were analysed.The results showed that the activity of amylase was high in fresh tobacco leaves and that of invertase was low;After curing,the activity of amylase decreased and that of invertase increased;Their activities decreased after redrying;while increased to the highest in three months of aging,due to the change of such conditions as temperature,then gradually decreased.The activity of neutral proteinase was high in fresh tobacco leaves and became weak after curing,it couldn't be detected after curing.The contents of starch,non -reducing sugar,soluble protein and amino acids continuously decreased during aging.
【CateGory Index】: S572.01
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