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One new feruloyl sucrose ester, 3-feruloyl-4′,6′-diacetyl sucrose (1), along with five known feruloyl sucrose esters, 3,6-diferuloyl-3′,6′-diacetyl sucrose (2), smilaside A (3), 3,6-diferuloyl-6′-acetyl sucrose (4), 3-feruloyl-6′-acetyl sucrose (5), and 3,6-diferuloyl sucrose (6), was isolated from Oryza sativa roots. The chemical structures of the compounds were determined by spectroscopic data analysis...
Total phenolic content (TPC) and ascorbic acid equivalent antioxidant capacity (AEAC) of leaves of 26 ginger species belonging to nine genera and three tribes were screened. For 14 species, TPC and AEAC of rhizomes were also assessed. Ferrous ion-chelating (FIC) abilities of leaves and rhizomes of eight species were compared. Leaves of five species of Etlingera were analysed for tyrosinase inhibition...
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