Exploration of indigenous agrowastes for cellulase production by Aspergillus niger

摘要

Regional agrowastes such as?Vigna mungo, Saccharum spontaneum?and?Brassica campestris?were collected and biohydrolysis of these substrates for cellulase production were carried out by?Aspergillus niger. Proximate composition of each agrowastes was analyzed based on dry weight, to have an insight view of their chemical composition. Cellulose content of?S. spontaneum?and?B. campestris?was calculated as 43.1?± 2.8?and 39.4?± 3.1%, respectively, while cellulase activity of?A. niger?was found to be higher on?S. spontaneum.?Low lignin to cellulose ratio of?S. spontaneum?made it a preferred substrate for cellulase production. However, high lignin content of?B. campestris?made the cellulose inaccessible and resulted in poor yield of enzyme. Therefore,?S. spontaneum?has a great potential to serve as a cheaper, easily available and reasonable substrate for cellulase production.