Structure-dependent pyrolysis mechanisms of tobacco carbohydrates: from monosaccharides to polysaccharides under programmed and fast pyrolysis conditions.

ABSTRACT: This study systematically investigates the pyrolysis mechanisms of typical carbohydrates in tobacco under both fast pyrolysis (500 °C) and temperature-programmed conditions (50-500 °C), with a focus on their structural influences on product distributions and reaction pathways. Comparing the fast and temperature-programmed pyrolysis experiments reveals the pyrolysis pathways and product distributions of different structural sugars. Using Py-GC/MS analysis, we demonstrate that small-molecule sugars exhibit distinct pyrolysis behaviors: glucose favors diversified products through 1,2-enolization, while fructose preferentially forms furans via 2,3-enolization due to its ketose configuration. Macromolecular sugars display structure-dependent mechanisms: cellulose yields anhydrosugars thr

SUBMITTER: Peng Y 

PROVIDER: S-EPMC12684048 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature