operated at a room temperature varying from 26 to 36 ◦C.
Three different feedstock concentration (5%,7%,10%) was prepared .Anaerobic digestor was filled up to 300ml with feedstock and inoculums (1:1) leaving 700ml free space for gas production. Then the digester was purged with nitrogen gas for 5 min to assure anaerobic condition before it was tightly closed with a rubber stopper