Silva, E., and J.N. Nogueira. “ Effect of SO2 and Ascorbic Acid on Polyphenol Oxidase and Peroxidase Activities of Some Fruits and Vegetables ”. Anais da Escola Superior de Agricultura Luiz de Queiroz 40, no. 1 (January 1, 1983): 163–180. Accessed March 13, 2025. https://periodicos.usp.br/aesalq/article/view/4893.