Production of biogas and ethanol from stationery wastes using a microbial consortium isolated from soil as starter culture

The conventional pretreatments used during the valorization of paper waste in renewable energies are expensive, long, slow, require high temperatures and particularly not eco-friendly. However, application microbial cultures with cellulolytic capabilities becomes an attractive low-cost strategy. Therefore, aim this study was to screen efficient culture its evaluation as a starter hydrolysis process biogas bioethanol production. Our results indicated that from 18 isolates, two bacteria (identified Pseudomonas horyzihabitans Serratia liquefaciens) one consortium (CS2, predominated by Enterobacteriaceae) had important cellulosic activity. selected production improved yields. Indeed, CS2 enhanced yields 9.4 mL g?1 78.2 ?L (P < 0.05) respectively. Also, addition reduced time needed for 21 days, respect 24 days control sample, under psychrophilic temperature. Thus, low cost practical procedure can be strategy release sugars waste, reduce biodigestion, enhance recovered.