Microbial population of the feedstock and digestate was enumerated by standard plate count. Potato Dextrose agar (PDA) plus Chloramphenicol was used for fungi while MacConkey agar, Fastidious Anaerobic agar, Eosin Methylene Blue (EMB) agar, and Nutrients agar plates were used for bacteria enumeration. Incubation of MacConkey, EMB and Nutrient agar plates was done for 24–48 h at 37 C. PDA plates were incubated within 3–5 days at room temperature. The incubation of Fastidious Anaerobic agar plates was done a 37 C for 7 days in an anaerobic jar (Oxoid) that contained a moistened pack of gas generating kit (Bio-oxoid). Purification and identification of individual colonies was done by morphological and biochemical techniques.