Glucose production by hydrolysis of starch under hydrothermal conditions

Starch was converted into glucose by hydrolysis with water under hydrothermal conditions at 453–513 K in a small batch reactor. The major product was glucose; oligomers having various degrees of polymerization, maltose, fructose, 5‐hydroxymethylfurfural and furfural were also produced. The maximum yield of glucose obtained was 630 g kg−1 on the carbon basis at 473 K and 30 min, where the quantity of carbon unrecovered was about 50 g kg−1, and the production of char and gaseous products was negligible.