Topic
Isovitexin
About: Isovitexin is a research topic. Over the lifetime, 526 publications have been published within this topic receiving 11525 citations. The topic is also known as: 6-Glucosylapigenin & Isovitexin.
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TL;DR: The UHPLC-DAD assay was validated for the quantitative analysis of agnuside, isovitexin, casticin, 5-hydroxykaempferol-3,6,7,4'-tetramethylether and vitetrifolin D and the applicability of the developed assay to phytopharmaceuticals was successfully proven.
23 citations
TL;DR: In this article, chlorogenic acid and isoorientin were found to be the main compds in the methanolic ext. part of the fresh leaves of Asphodelus aestivus.
Abstract: Together with ten well known compds., the quinic acid deriv. chlorogenic acid, the nucleoside adenosine, two amino acids, tryptophan and phenylalanine, the anthraquinone derivs., aloemodin, aloemodin acetate and chyrosphanol 1-O-gentiobioside, the flavon C-glycosides, isovitexin, isoorientin and isoorientin 4'-O-beta -glucopyranoside, as well as two new acylated isoorientin derivs., 6''-O-(malonyl)-isoorientin and 6''-O-[(S)-3-hydroxy-3-methylglutaroyl]-isoorientin, were isolated from the water sol. part of the methanolic ext. of the fresh leaves of Asphodelus aestivus. All compds. were structurally identified by spectroscopic methods, including UV, MS, and NMR (1D and 2D) spectroscopy. Among the compds. isolated, chlorogenic acid and isoorientin were found to be the main compds. of the methanolic ext.
23 citations
TL;DR: A novel phenylethanoid dimer, namely, jacraninoside A (1) and the five known constituents E/Zacetoside (2), isoacetosides (3), cistanoside E (4), 6′-acetylacetosIDE (5), and campneoside I (6) together with the seven flavonoids isoquercitrin (7), scutellarein 7-O-β -D-glucuronopyranoside methyl ester (8), apigenin 7 O
Abstract: A novel phenylethanoid dimer, namely, jacraninoside A (1) and the five known constituents E/Zacetoside (2), isoacetoside (3), cistanoside E (4), 6′-acetylacetoside (5), and campneoside I (6) together with the seven flavonoids isoquercitrin (7), scutellarein 7-O-β -D-glucuronopyranoside methyl ester (8), apigenin 7-O-β -D-galacturonopyranoside (9), luteolin 7-O-β -D-glucuronopyranoside methyl ester (10), apigenin 7-O-β -D-glucuronopyranoside methyl ester (11), luteolin 7-O-β -Dglucopyranoside (12), and isovitexin (13) were isolated from the aqueous methanol extract of Jacaranda mimosaefolia D. Don. leaves. All known metabolites have been identified in this genus for the first time except for 2 and 12 which had been isolated once before from the leaves and twigs of Jacaranda mimosaefolia. Their structures were elucidated based on chemical evidences and spectroscopic analyses (1D and 2D NMR, HRMS ((–)-ESI)/MS, UV).
23 citations
TL;DR: Training system presented no effects on TP, PA, TF and antioxidant activity, whereas rainy season year 2 increased FRAP values, TF, orientin, isovitexin and hesperetin content, which could be associate to climate stressful condition leading to higher levels of these compounds.
23 citations
TL;DR: High-performance liquid chromatography coupled to diode array UV detection, using different techniques, also using post-column addition of shift reagents, afforded precise structural information about the position of the free hydroxyl groups in the flavonoid nucleus.
23 citations