To cite this article: Zaidi, S.R. and Mirza, S.A., 2024. Optimization of laccase production parameters by Aspergillus niger from different eco-logical sites of Lahore. Punjab Univ. J. Zool., 39(2): 141-149. https://dx.doi.org/10.17582/journal.pujz/2024/39.2.141.149