Relationship between style orientation and chemical components of light-flavour flue-cured tobacco in Fujian tobacco-growing areas
[Objective]The objective of this study was to analyze the relationship of the style characteristics with chemical composition and sensory quality of light-flavour flue-cured tobacco in Fujian tobacco-growing areas,aiming to provide theoretical basis for the production of high-quality light-flavour tobacco leaves with distinctive characteristics.[Method]CB-1,a characteristic flue-cured tobacco variety in Fujian,was used as the experimental material.A total of 90 samples of C3F grade tobacco leaves were collected from the main tobacco-growing areas in Changting,Fujian.The main chemical components of the tobacco leaves were determined,and the relationship between chemical components and sen-sory evaluation and style characteristics was analyzed using descriptive statistics,simple correlation and regression analy-sis.[Result]The contents of total sugar(34.67％-40.00％),reducing sugar(20.53％-30.43％),potassium(1.99％-3.19％),and starch(3.67％-8.10％)in the tobacco leaves were relatively high,while the contents of total nitrogen(1.23％-1.80％)and nicotine(1.06％-2.61％)were suitable,and the content of chlorine(0.05％-0.16％)was relatively low.In the sensory evaluation of tobacco leaves,fineness was significantly and negatively correlated with total nitrogen content(P＜0.05,the same below),extremely significantly and negatively correlated with chlorine content(P＜0.01,the same below),signifi-cantly and positively correlated with starch content,and extremely significantly and positively correlated with the potassium-chlorine ratio.The miscellaneous gas was significantly and positively correlated with potassium content.The re-sults of the multiple linear regression equation between the style manifestation of light-flavour and chemical components indicated that the degree of style manifestation of light-flavour was positively correlated with nicotine,starch and potas-sium content,and negatively correlated with total sugar content and sugar-alkali ratio.The regression analysis of different prominent fragrance rhymes with chemical components showed consistent correlation of the two in total sugar,nicotine,starch,potassium and chlorine content,as well as sugar-alkali ratio.The comparison results of the light-flavour style manifestation of middle leaves in different chemical component intervals indicated that when the nicotine content was greater than 2.5％,the light-flavour style significantly increased.When the total nitrogen content was 1.3％-1.4％,potas-sium content was 2.4％-2.6％,sugar-alkali ratio was ≤15,nitrogen-alkali ratio was ≤0.7,and potassium-chlorine ratio was 40-50,the light-flavour style of tobacco leaves was more pronounced.[Conclusion]The characteristic flue-cured to-bacco variety CB-1 in Fujian tobacco-growing areas has a coordinated chemical components,fine fragrance quality,rich fragrance rhyme,and good overall style quality.Five chemical indexes including total sugar,nicotine,starch,potassium contents,and sugar-alkali ratio and Chlorine all showed consistent correlation in different style manifestation with various prominent fragrance rhyme.
flue-cured tobaccoCB-1chemical componentsensory qualitystyle manifestationFujian tobacco-growing areas
万方数据
维普
