The effects of eleven flavonoids on lipid peroxidation, protein degradation, deformability and osmotic fragility of human erythrocytes exposed in vitro to 10 mM H2O2 for 60 min at 37 ̊C have been studied. The following flavonoids; quercetin, rutin and morin significantly protected erythrocytes against lipid peroxidation caused by H2O2. This inhibition of lipid peroxidation could be explained by ...

A strategy for analyzing flavone C-glucosides in the leaves of different species of bamboo was developed. Firstly, the flavone C-glycosides were extracted from the bamboo leaves (51 species in 17 genera) with methanol and chromatographed on silica gel 60 plates in automatic developing chamber (ADC2), and a qualitative survey using simple derivatization steps with the NP reagent was carried out....

The known flavone, chrysin (1) and the known flavone glycoside, chrysin-7-O-(β-D-glucopyranoside) (2) together with vomifoliol, loliode and cinnamic acid have been isolated for the first time from the leaves and flowers of Calycotome spinosa (L.). Lamk, theirs structures were established on the basis of spectroscopic technical; H-, C-NMR, 2D NMR and MS (I.E).

Over the past decade, the chemical behavior of flavonoids as antioxidants has become the subject ofintense experimental research. In this paper, we use a quantum-chemical approach to shed light on thereactivity of four poly phenols, Benzoic acid, vanilic acid, gallic acid and flavone . In order to establishthe most efficient theoretical methodology, different methods, either Hartree—Fock-based ...

Abstract The hook of Uncaria rhynchophylla is an important external phenotype representing the quality Gou-Teng. formation pattern U. displays a unique feature that solitary and opposite hooks alternately occur in leaf axils forming liner series. only grows on lower side axil, resulting from decline total yield hooks. However, reasons for are not clear. Therefore, survey molecular mechanisms ne...

The flowers of pagoda tree (Sophora japonica L.) are white, which limited its ornamental value and caused few researches on flower color anthocyanin accumulation. A pink mutant (PM) was discovered, provided an opportunity to investigate biosynthesis in flowers. In this study, the flavone/flavonol contents petals PM wild type (WT; white flower) were measured. content total anthocyanins significa...

Lignin, a ubiquitous phenylpropanoid polymer in vascular plant cell walls, is derived primarily from oxidative couplings of monolignols (p-hydroxycinnamyl alcohols). It was discovered recently that a wide range of grasses, including cereals, utilize a member of the flavonoids, tricin (39,59-dimethoxyflavone), as a natural comonomer with monolignols for cell wall lignification. Previously, we es...

Flavone analogs are natural compounds of the flavonoid class that have a wide range biological activities. The present study aimed to predict, with aid in silico methodologies, oral bioavailability and pharmacokinetic toxicological analyzes for three flavone analogues (apigenin, chrysin luteonlin). revealed good availability, favorable parameters. Virtual Screening performed predict all did not...