LU, Yanmin. Selective Extraction and Purification of Papain Using Polyethylene Glycol (PEG 4000)/Potassium Citrate Aqueous Two Phase. Asian Journal of Chemistry, [S. l.], v. 26, n. 12, p. 3483–3488, 2014. DOI: 10.14233/ajchem.2014.15992. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/26_13_10. Acesso em: 8 jul. 2024.