Annabelle C, F., Norli L, A. and Stanly Adam C, J. 2025. Optimizing Protein Extraction from Cowpea (Vigna unguiculata) and Pigeon Pea (Cajanus cajan) via Central Composite Design (CCD) . Journal of Healthcare and Biomedical Science . 3, 2 (Jun. 2025), 29–38. DOI:https://doi.org/10.31098/jhbs.v3i2.3443.