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Comparative Analysis on Quality of Flue-cured Tobacco Leaves in Different Positions in Fujian Tobacco-growing Area

CHEN Shao-bin et al(Technology Center,Chinese Tobacco Industrial Corporation of Fujian,Xiamen,Fujian 361026)  
[Objective]The purpose was to study the quality difference of flue-cured tobacco leaves in different positions in Fujian tobacco-growing area so as to increase the industry usability of Fujian flue-cured tobacco.[Method]With flue-cured tobacco variety K326 as the test material,the main chemical components,physical properties,sensory quality and so on of flue-cured tobacco in 3 positions of upper,middle and lower leaves in Fujian main tobacco-growing areas such as Sanming,Longyan and Nanping in 2006 were compared and analyzed.[Result] The single leaf weight,leaf thickness,density and unit leaf weight of 3 positions reached significant difference.The contents of total N,total sugar,reducing sugar and crude nicotine,the index of organic potassium,Schmuck value and the ratio of sugar to nicotine reached significant difference.The total quantity of volatility aroma,aroma quality,aroma quantity,aroma thickness,irritability,aftertaste and total marks also reached significant difference.[Conclusion]The main chemical component contents of flue-cured tobacco in Fujian main tobacco-growing areas were moderate with harmonious proportion,specially the contents of polyphenol substance and aether extracts were higher and the aroma matter content was rich,so,Fujian flue-cured tobacco had stronger industry usability.The comparative evaluation showed that the quality of middle leaf was the best.
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