Three new lignans (1 - 3), together with four new thymoquinol glycosides (4 - 7), were isolated from 70%-EtOH extract of the rattan stems of Schisandra chinensis. The structures of 1 - 7 were elucidated by detailed spectroscopic analyses, and these new compounds were identified as pinobatol-9-O-β-d-glucopyranoside (1), 1,2,13,14-tetramethoxydibenzocyclooctadiene 3,12-O-β-d-diglucopyranoside (2)...

During recent years, there was growing demand in using microalga valuable products such as β-carotene in health care. β-Carotene has anti-cancer and anti-aging properties for human. In Dunaliella salina cells, β-carotene has a major protecting role for biomolecules, when the production of reactive oxygen species elevated. In the present study, we investigated the influence of the four most effe...

In this study, a novel polysaccharide fraction from Ocimum album seed was extracted and then purified by Cellulose DEAE-52 Sephadex G-200 anion exchange chromatography. The structural, physicochemical antioxidant properties of the main (OAP-1A) were evaluated. contained 94.3% carbohydrate, 3.56% moisture 2.14% ash result gel permeation chromatography (GPC) showed average molecular weight 593 kD...

Introduction. Medicinal plants are a rich, almost inexhaustible source of medicinal substances, and due to their large chemical diversity metabolites available for isolation research is always an important task. One the promising marsh cinquefoil ( Comarum palustre L.), widely used in folk medicine treatment diseases musculoskeletal system. Aim. Isolation individual secondary from aerial part C...

Five new triterpenoid saponins, heinsiagenin A 3-O-[α-l-rhamnopyranosyl-(1→2)-β-d-glucopyranosyl-(1→2)]-β-d-glucopyranoside (1), heinsiagenin A 3-O-[α-l-rhamnopyranosyl-(1→2)-β-d-glucopyranosyl-(1→2)]-[β-d-glucopyranosyl-(1→4)]-β-d-glucopyranoside (2), 2α-hydroxyheinsiagenin A 3-O-[α-l-rhamnopyranosyl-(1→2)-β-d-glucopyranosyl-(1→2)]-β-d-glucopyranoside (3), 2α-hydroxyheinsiagenin A 3-O-[β-d-glu...

UNLABELLED Carboxylesterases hydrolyze esters, amides, and thioesters to produce carboxylic acids and resulting alcohols, amines, and thiols, respectively. Uridine 5'-diphosphate- glucuronosyltransferases are colocalized with carboxylesterases and have the potential to further metabolize carboxylic acids to acyl glucuronides, but it is currently unknown if acyl glucuronides, being esters, also ...

1-Acetamido-1-deoxy-(4-O-β-d-glucopyranosyl-β-d-glucopyranose) (5) and 1-deoxy-1-(4-phenyl-1,2,3-triazolyl)-(4-O-β-d-glucopyranosyl-β-d-glucopyranose) (7) were synthesised from 1-azido-1-deoxy-(4-O-β-d-glucopyranosyl-β-d-glucopyranose) (2) and crystallised as dihydrates. Crystal structural analysis of 5·2H2O displayed an acetamide C(4) chain and stacked cellobiose residues. The structure of 7·2...