Solid-state fermentation of food waste by A. awamori and A. oryzae
can be successfully used to process food waste for the production
of nutrients-rich hydrolysate. The highest glucose (36.9 g/L)
and FAN (361.3 mg/L) concentration were obtained at food waste
mass ratio of 10%. Food waste hydrolysate was subsequently used
as substrate for fermentative hydrogen production by heat pretreated
sludge. The best hydrogen yield of 39.14 ml H2/g food
waste (219.91 ml H2/VSadded) was achieved at food waste mass
ratio of 4%. The proposed process could be potentially utilized to
transform food waste into hydrogen production for large scale.