Purification and Partial Characterization of Cellulase Produced by Aspergillus niger Cultured on Vitellaria paradoxa shells. Fountain Journal of Natural and Applied Sciences [Internet]. 2017 Dec. 29 [cited 2026 Apr. 18];6(2). Available from: https://new.fountainjournals.com/index.php/FUJNAS/article/view/167