Smartphone Application for Total Phenols Content and Antioxidant Determination in Tomato, Strawberry, and Coffee Employing Digital Imaging

Edmar Junior Oliveira Bazani, Matheus S. Barreto, Antônio J. Demuner, Marcelo Henrique dos Santos, Cristiane Isaac Cerceau, Daiane Einhardt Blank, Maria José Magalhães Firmino, Gustavo S. F. Souza, Mathews O.K. Franco, Willian Toito Suarez, Paulo César Stringheta