Separating fungi degradation of cellulose and study cellulolytic activity in part of microflora Zanjan soil

Cellulose is the most abundant biopolymer on biosphere and one of the most importantconstituent in plant cell wall. Biodegradation of cellulose in soil has an importantrole in Carbon flow and changing fixed Carbon to CO2, and in producing stable biologicalproducts and bioenergy. In this research fungus were isolated from soil of Zanjanand Abhar, due to great potential of soil mycoflora in degradation of cellulose. Thenisolates were grown in selective media containing Avicel as Carbon source and theircellulolytic activity were measured by DNS method. Among 67 samples, Aspergillusniger is the the most prevalent fungus between isolates and it has the highest activityamong the isolates of Zanjan and Abhar.