Results 81 to 90 of about 108,126,505 (165)

Quality Control Strategies for Differentiation of Kalanchoe Species

open access: yesPhytochemical Analysis, Volume 36, Issue 8, Page 2385-2400, December 2025.
ABSTRACT Kalanchoe species products are commercially available in local markets and by internationally accessible online retailers and may exhibit quality issues because of misidentification from similar common names and anatomical similarities among related species used as feedstock. This study proposes an approach using UPLC‐MS/MSE and HPTLC, coupled
Evelyn A. de Andrade   +8 more
wiley   +1 more source

Chemical Composition and Cytotoxicity of Leaves Extracts prepared using Accelerated System Extraction (ASE)

open access: yesNatural Product Communications, 2018
Kalanchoe pinnata (Crassulaceae) is a medicinal plant distributed in several areas of the World. Their leaves have been used, in folk medicine, for anxiety and sleep disorders among other proposes.
Kassia M. F. Pereira   +5 more
doaj   +1 more source

Gastroprotective activity of the hydroethanolic extract and ethyl acetate fraction from Kalanchoe pinnata (Lam.) Pers.

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2017
Peptic ulcers are an important pathology, and the search for safer and more effective treatment methods is of paramount importance. In this study, we assess the gastroprotective effects of the hydroethanolic extract (HE) and ethyl acetate fraction (EAF ...
Flávia Sobreira   +6 more
doaj   +1 more source

Quercetin and kaempferol 3-O-[α-L-rhamnopyranosyl-(→2)-α- L-arabinopyranoside]-7-O-α-L-rhamnopyranosides from Anthyllis hermanniae: Structure determination and conformational studies

open access: yes, 2011
The study reports the isolation and structural identification of two new flavonol triglycosides from the methanolic extract of Anthyllis hermanniae, exhibiting the same glycosylation pattern: quercetin 3-O-[α-L- rhamnopyranosyl-(→2)-α-l-arabinopyranoside]
Mitakou, S.   +5 more
core  

Four new flavonol glycosides from the leaves of Ginkgo biloba

open access: yes, 2019
Four new flavonol glycosides, 5, 7, 5′-trihydroxy-3′, 4′-dimethoxyflavonol-3-O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranoside (1), quercetin 3-O-(6-trans-feruloyl)-β-D-glucopyranosyl-(1→2)-α-L-rhamnopyranoside (2), kaempferol 3-O-(6-trans-caffeoyl)-β-D ...
Lina Liu (227490)   +8 more
core   +1 more source

Therapeutic potential of Leea asiatica: Chemical isolation and validation of ethnomedicinal claims through in vitro and in silico assessment of antioxidant and anti-inflammatory properties

open access: yesHeliyon
Leea asiatica (L.) Ridsdale has been used by different ethnic communities to manage diseased conditions that can be traced to oxidative stress and cellular inflammations but scientific evidences to support the claim are scanty.
Khem Raj Joshi   +9 more
doaj   +1 more source

Phenolic Constituents of Phenax angustifolius

open access: yes, 2000
: Fractionation of an ethanolic extract of the leaves of Phenax angustifolius has resulted in the isolation of two new lignans, 2-hydroxy-2-(3‘,4‘-dihydroxyphenyl)methyl-3-(3‘ ‘,4‘ ‘-dimethoxyphenyl)methyl-γ-butyrolactone (1) and 2-hydroxy-2-(4‘-O-β-d ...
Jorge L. Poveda   +7 more
core   +1 more source

Hepatoprotective and antioxidant polyphenols from a standardized methanolic extract of the leaves of Liquidambar styraciflua L.

open access: yesBulletin of Faculty of Pharmacy Cairo University, 2015
The methanolic extract of the leaves of Liquidambar styraciflua L. (Altingiaceae) (LSE) was evaluated for hepatoprotective and antioxidant activities in carbon tetrachloride liver-damaged rats.
Hanaa H. Eid   +4 more
doaj   +1 more source

A novel dimeric flavonol glycoside from Cynanchum acutum subsp. sibiricum

open access: yes, 2018
A novel dimeric flavonol glycoside, Cynanflavoside A (1), together with six analogues, kaempferol-3-O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside (2), quercetin-3-O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside (3), kaempferol-3-O-α-L-rhamnopyranosyl ...
Xin-Hui Pan (5370584)   +5 more
core   +1 more source

Isolation and identification of three mono-glycosylated flavonoids from flowers of Vernonia galamensis Ssp. galamensis Var. galamensis M. Gilbert. (Isolement et identification de trois flavonols monoglycosylés des fleurs de Vernonia galamensis Ssp. galame [PDF]

open access: yes, 2017
Le fractionnement par chromatographie sur colonne de gel de silice de la phase d’acétate d’éthyle de l’extrait hydrométhanolique des fleurs de Vernonia galamensis Ssp. galamensis Var.
Donatien, Koné   +4 more
core   +1 more source

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