Citric acid production from whey with sugars and additives by Aspergillus niger . Frontiers of Agriculture and Food Technology, [S. l.], v. 10, n. 1, p. 211–214, 2019. Disponível em: https://kevinpage.org/index.php/FAFT/article/view/1121. Acesso em: 28 oct. 2026.