High-resolution bioactivity profiling combined with HPLC-HRMS-SPE-NMR: α-Glucosidase inhibitors and acetylated ellagic acid rhamnosides from Myrcia palustris DC. (Myrtaceae)

High-resolution α-glucosidase inhibition/HPLC-HRMS-SPE-NMR analysis of Myrcia palustris led to identification of casuarinin, myricetin 3-O-β-d-(6″-galloyl)galactopyranosid, kaempferol 3-O-β-d-galactopyranoside, myricetin and quercetin as main α-glucosidase inhibitors and identification of four acetylated ellagic acid rhamnosides.57