Nutraceutical compounds: echinoids, flavonoids, xanthones and caffeine identified and quantitated in the leaves of Coffea Arabica trees from three regions of Brazil - De Almeida, R F; Trevisan, M TS; Thomaziello, R A; Breuer, A; Klika, K D; Ulrich, C M; Owen, R W (Food Res Int, 2019)