Similar results of acid hydrolysis of cassava waste
showed that acid hydrolysis time at 0.6 M H2SO4 and
120°C had effect on reducing sugar content. The reducing
sugar contents in the early phase of hydrolysis
rapidly increased, but after 30 min, the reducing sugar
contents were almost constant (Srinorakutara et al.,
2006). This suggests that less reducing sugar in the solution
may be derived from dehydration or oxidation by sulfuric
acid on hydrolytic products. The solution obtained in
this study showed various colors (Delegenes et al, 1990).