The earlier researchers had also proved the viability of
bio-hydrogen generation from domestic and food processing
waste arising from apple, potato and confectionery. The results
showed that the amount of hydrogen generated from
apple, potato and confectionery were found to be 0.7–0.9,
2.1–2.8 and 0.1 − 2LH2/L of wastewater [15]. While the
biogas generation during the anaerobic digestion of jackfruit
peel waste resulted in 0.72 L biogas/g of VS destroyed with
a hydrogen content of 55 ± 2% [16]. The hydrogen content
in the thermophilic and mesophilic reactor was found to be
58% and 42%, respectively, during the anaerobic digestion of
substrate consisting of fruit, vegetable and paper wastes [17].
Whereas, the hydrogen production from food waste using
mesophilic and thermophilic acidogenic culture resulted in a
maximum hydrogen content of 69% (v/v) at 10 gVS/L, with
butyrate (54–60%), acetate (22–31%) and propionate (0.3–1%)
as fatty acid constituents [18]. In the case of anaerobic fermentation
of food waste using leaching bed reactor with heat
shocked anaerobic sludge resulted in a hydrogen production of
19.3%/g-COD [19].