不同类型烟草游离氨基酸组成和含量的差异分析

Difference in composition and content of free amino acids among various tobacco types

以四川8种烟草类型的调制后烟叶为材料,对不同类型烟叶游离氨基酸的组成和含量差异进行了比较分析。结果表明：烤烟和香料烟含量最高的两种氨基酸为脯氨酸和谷氨酸,两者之和占到总量的31.01%~46.75%;白肋烟、马里兰烟、晒烟中含量最高的氨基酸为天门冬氨酸和谷氨酸,两者之和占总量的34.43%~38.69%;脯氨酸、天门冬氨酸、蛋氨酸在不同类型烟草中含量变异度最大;不同生态条件对白肋烟和晒烟氨基酸影响较大的分别是是天门冬氨酸、蛋氨酸、酪氨酸和天门冬氨酸、酪氨酸、精氨酸。

Eight cured tobaccos mainly produced from Sichuan province were used as materials to compare their composition and content of free amino acids.Results showed that the highest content of amino acids in flue-cured tobacco and oriental tobacco were Pro and Glu which accounted for 31.01%-46.75% of total amino acids;while in burley,maryland and sun-cured tobacco,Asp and Glu were dominant amino acids which accounted for 34.43%-38.69% of total.Level of variation of Pro,Asp,and Met was the highest among different types of tobacco.For burley tobacco,Asp,Met and Tyr were more likely to be influenced by ecological conditions than the others;while for sun-cured tobacco,Asp,Tyr and Arg showed more variation among different areas.