The Novelty of Amino Acid Production From Feathers Degradation Em-ploying Keratinase from Streptomyces Venezuelae AZ15. Iraqi Journal of Science [Internet]. 2023 Aug. 30 [cited 2025 Aug. 18];64(8):3925-34. Available from: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/8563