Isolation and HPLC quantitative analysis of flavonoid glycosides from brazilian beverages (Maytenus ilicifolia and M. aquifolium) - Leite, João Paulo V.; Rastrelli, Luca; Romussi, Giovanni; Oliveira, Alaide B.; Yariwake, Janete Harumi; Vilegas, Wagner; Pizza, Cosimo (Journal of Agricultutal and Food Chemistry, 2001)