CHANDRASEKHAR, Shreya. Studying the rate of polyphenol oxidase activity in apples using a colorimeter. Open Science Journal, [S. l.], v. 6, n. 1, 2021. DOI: 10.23954/osj.v6i1.2581. Disponível em: https://www.osjournal.org/ojs/index.php/OSJ/article/view/2581. Acesso em: 30 oct. 2025.