Dissolved organic carbon and nitrogen are direct nutrient feed microorganisms, which also can be used as an indicator for maturity. DC/DN ratio decreased from 36.3 at 0 h to 6.8 at 96 h in DHAF,
while it decreased from 32.3 at 0 d to 7.8 at 24 d in TSC. The results showed that food waste was mature after 96 h of fermentation in DHAF and 24 d of composting in TSC.