Transcription of leaf Chemistry
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leaf Chemistry
Reprinted from Tobacco: Production, Chemistry , And Technology, D. Layten Davis and Mark T. Nielson, Eds., Blackwell Science (Pub.), 1999 Chapter 8 leaf Chemistry BA Basic Chemical Constituents of Tobacco leaf and Differences among Tobacco Types Leffingwell Leffingwell and Associates Canton, Georgia, USA INTRODUCTION In 1960, a little over 200 chemical constituents had been identified in tobacco leaf of all types and less than 450 had been reported in smoke. Today, a p proximately 3000 have been identified and characterized in tobacco leaf and some 4000 in smoke. Estimates ar e that the total number of chemical constituents in leaf exceeds 4000 and there are over 6000 in tobacco smoke. It is not the purpose of this section to comprehensively review all of the known constituen ts, but rather to provide an insight into the known composition and Chemistry of tobacco types that impact tobacco quality and differ-en tiate tobacco types.
266 Tobacco: Production, Chemistry and Technology Table 8.1 Composition of cigarette tobaccos: representative analyses of cigarette tobaccos (leaf web after aging, moisture-free basis). Component
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