Purification and Characterization of Phytase Produced by Aspergillus niger Isolated from Poultry Farm Soil Using Submerged Fermentation: doi.org/10.26538/tjnpr/v5i6.17. Tropical Journal of Natural Product Research , [S. l.], v. 5, n. 6, p. 1083–1087, 2021. Disponível em: https://www.tjnpr.org/index.php/home/article/view/629. Acesso em: 2 jan. 2026.