Extraction of oleuropein from olive leaves and applicability in foods - Coppa, Carolina Fernanda Sengling Cebin; Gonçalves, Bruna Leonel; Lee, Sarah Hwa In; Nunes, Valeria Martinelli Ramos; Gonçalves, Cíntia Bernardo; Rodrigues, Christianne Elisabete da Costa; Oliveira, Carlos Augusto Fernandes de (Quality Assurance and Safety of Crops & Foods, 2020)