Production of Bioethanol from waste Nnewspaper using Yeast isolate from Palm oil polluted soil

Bioethanol is currently being produced in commercial quantity in most countries of the world using edible feedstocks such as maize, sugarcane and wheat. Unfortunately, this contributes up to 85 % of the production cost making bioethanol more expensive than gasoline. The current work, investigates the potential of using waste newspaper as a feedstock and yeast isolate from palm oil polluted soil for bioethanol production. This was carried out by Separate Hydrolysis and Fermentation method (SHF) using yeast isolate extracted from palm oil impacted soil. The result of the proximate analysis of the waste newspaper revealed a high carbohydrate content of 80.2 %, the biochemical characteristics of the yeast isolate shows positive to the fermentation of most of the reducing sugars such as lactose, sucrose, galatose and glucose. The pH was varied from 6 - 8.5 while keeping other parameters constant, the result gave a maximum bioethanol concentration of 0.246 mg/mL and yeast biomass of 0.64 mg/mL using pH 7 after inoculation time of 8 days. The inoculum size was varied between 2 and 10 % at constant pH, and temperature. The result shows that the maximum bioethanol (0.27 mg/mL) and yeast biomass (0.60 mg/mL) were obtained using an inoculum size of 6 % after 8 days of incubation. The yeast isolate (pops 1) using MSM, 25 % waste newspaper and 2 % corn steep liquor gave the highest concentration of bioethanol of 24.2 mg/mL after 14 days of fermentation. Being that the feedstock and yeast source are waste, it is expected that the cost of production of ethanol will be reduced, and the use of the waste newspaper as a feedstock is a valorization and sustainable waste management strategies