Location of uronic acid group in Japanese cedar and Japanese beech wood cell walls as evaluated by the influences of minerals on thermal reactivity

Abstract The thermal reactivities of cellulose and hemicellulose are significantly different in cell walls when compared with isolated components differ Japanese cedar (softwood) beech (hardwood). Uronic acid bound to xylan promotes the degradation hemicellulose, its effect is depending on form free (acting as an catalyst) or metal uronate a base catalyst). We evaluated location uronic wall by identifying affected demineralization pyrolysis wood. glucomannan were changed demineralization, but cedar, changed. Therefore, was established differed between beech; close beech, cedar. Such information important for understanding ultrastructure behavior softwood hardwood walls.