Physical Parameter Screening of Feather Protein Hydrolysate Production by Aspergillus terreus UniMAP AA-1 using Submerged Fermentation. BBT [Internet]. 2024 Dec. 30 [cited 2026 Sep. 9];3(2):53-8. Available from: https://bioprocessing.utm.my/index.php/bioprocessing/article/view/43