Fig. 7

C5 and C6 conversion (a) and furfural and HMF production (b) as a function of reaction time at pH 0.5 obtained by dehydration of 90 g/L C6 (glucose and fructose) and 60 g/L C5 (xylose and xylulose) sugars conducted at 120 °C using HCl as the catalyst. Dioxane to aqueous ratio was 2:1. The error bars shown are standard deviations from triplicate analyses