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Naphthopyranone glycosides from Paepalanthus bromelioides
(1998-09-03)
Two new naphtho[2,3-C]pyran-1-one glycosides, paepalantine-9-O-β-D- glucopyranoside and paepalantine-9-O-β-D-allopyranosyl(1 → 6)glucopyranoside, were isolated from an ethanolic extract of capitula from Paepalanthus ...
Antioxidant flavonol glycosides from Nectandra grandiflora (Lauraceae)
(Editora Unesp, 2002-01-01)
O fracionamento cromatográfico do extrato etanólico das folhas de Nectandra grandiflora resultou no isolamento de dois flavonóides glicosilados que apresentaram atividade antioxidante inibindo a oxidação do beta -caroteno ...
Antioxidant flavonol glycosides from Nectandra grandiflora (Lauraceae)
(Editora Unesp, 2002-01-01)
O fracionamento cromatográfico do extrato etanólico das folhas de Nectandra grandiflora resultou no isolamento de dois flavonóides glicosilados que apresentaram atividade antioxidante inibindo a oxidação do beta -caroteno ...
Anthrone and oxanthrone C,O-diglycosides from Picramnia teapensis
(Elsevier B.V., 2000-12-01)
Two C,O-diglycosylated compounds, the anthrone picramnioside F, and the oxanthrone mayoside C, were isolated from the stem bark of Picramnia teapensis, along with the previously reported anthraquinones, 1-O-beta -D- and ...
Anthrone and oxanthrone C,O-diglycosides from Picramnia teapensis
(Elsevier B.V., 2000-12-01)
Two C,O-diglycosylated compounds, the anthrone picramnioside F, and the oxanthrone mayoside C, were isolated from the stem bark of Picramnia teapensis, along with the previously reported anthraquinones, 1-O-beta -D- and ...
Ionic liquids as phase transfer catalysts: enhancing the biphasic extractive epoxidation reaction for the selective synthesis of β-O-glycosides
(Pergamon-Elsevier Science Ltd, 2017-08)
Ionic liquids promoted the direct epoxidation of glycals acting as PTC. 1,2-anhydrosugars were prepared by the oxidation of glycals under biphasic conditions with dimethydioxirane generated in situ from oxone/acetone and ...
The effect of Endozym beta-split, a commercial enzyme preparation used for aroma release, on Tannat wine glycosides
(South African Soc Enology & Viticulture-sasev, 2012-06)
Commercial preparations with glycosidase activities are used to enhance wine aroma, but they are not extensively characterized. The aim of this work was to study the effect of three enzymes on aroma improvement in Tannat ...