豫中烤烟烟碱和总氮含量与中性香气成分含量的关系  

Relationship of Nicotine and Total Nitrogen Contents with Neutral Aroma Components in Flue-Cured Tobacco in Central Area of Henan Province

作　　者：史宏志[1] 邸慧慧[1] 赵晓丹[1] 刘国顺[1] 马永建 王维超 段杰[1] 

机构地区：[1]河南农业大学/国家烟草栽培生理生化研究基地,河南郑州450002 [2]襄县烟草公司,河南襄县461700

出　　处：《作物学报》2009年第7期1299-1305,共7页Acta Agronomica Sinica

基　　金：国家烟草专卖局重大科技项目"特色优质烟叶开发"子项目(30300318)资助

摘　　要：在对浓香型烤烟产区27个上二棚烟叶样品分析测定的基础上,研究了烟碱和总氮含量与烟叶中性香气成分含量的关系。结果表明,烟叶烟碱和总氮含量与类胡萝卜素类香气成分含量呈显著的二次曲线相关关系,在烟碱含量为3.82%时总类胡萝卜素类香气物质含量最高,在烟碱含量1.28%~3.92%范围内巨豆三烯酮2、巨豆三烯酮4、法尼基丙酮、二氢猕猴桃内酯和香叶基丙酮含量随烟碱含量的增高呈持续增加趋势。西柏烷类降解产物茄酮含量与烟碱和总氮含量也呈极显著的二次曲线相关关系,但茄酮含量最大值分别出现在烟碱含量为2.62%,总氮含量为2.77%时,此后显著下降。糖和氨基酸棕色化反应产物仅个别成分与烟碱和总氮含量显著相关。芳香族氨基酸降解产物总量、新植二烯和中性挥发性物质总量与烟碱和总氮含量呈显著的二次曲线相关关系,在烟碱和总氮含量分别为2.89%和3.05%时中性挥发性物质总量出现最大值。The flavor quality of tobacco is highly correlated with nicotine content, while the relationship between aroma components and nicotine content is unknown. The aroma constituents come from different precursors and contribute differently to aroma styles. A total of 27 Flue-cured tobacco samples were collected from full aroma tobacco growing areas to investigate the relation-ship of nicotine and total nitrogen contents with neutral volatile aroma component contents by GC/MS. Results showed that there existed significantly positive quadratic correlation relationship between nicotine, total nitrogen and carotenoid catabolite contents, with the maximum carotenoid catabolites contents at the nicotine content of 3.82%. In the range of nicotine contents from 1.28% to 3.92%, the contents of megastigmatrieonel 2, megastigmatrieonel 4, farnesyl acetone, dihydroactinidiolide, and geranyl acetone kept going up with increasing nicotine content. Significantly positive quadratic correlation relationship also existed between nicotine, total nitrogen and solanone, the cembratriendiol catabolite, while the solanone content was the highest at the nicotine content of 2.62% and the total nitrogen content of 2.77%, then decreased significantly. Only a very few Mallard reaction compounds had significant correlations with nicotine and total nitrogen. Aromatic amino acid catabolites, neophytadiene, and total amount of volatile aroma compounds had significant quadratic correlations with nicotine and total nitrogen contents, and at the nicotine content of 2.89% and total nitrogen content of 3.05%, the total amount of volatile aroma compounds reached maximum value.

关 键 词：烤烟 烟碱 总氮 中性香气成分 关系 

分 类 号：S572[农业科学—烟草工业] TS272.59[农业科学—作物学]