Results 91 to 100 of about 46,515 (282)

CGAR E CGAR-EM na análise dos constituintes químicos isolados do extrato hexanico de Sebastiania argutidens (Euphorbiaceae) HRGC and HRGC-MS in the analysis of the chemical constituents isolated from hexanic extract of Sebastiania argutidens (Euphorbiaceae)

open access: yesQuímica Nova, 2002
The fractionation column with SiO2 of the hexane extract of Sebastiania argutidens (Euphorbiaceae) yielded fractions containing hydrocarbons, carboxylic acids, sterols and pentacyclic triterpenes.
Alexsandro Branco, Moacir G. Pizzolatti
doaj   +1 more source

Unveiling protective mechanisms of wild olive (acebuche) oil in retinal pigment epithelial cells with hypertensive phenotype

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Circulating extracellular vesicles (EVs) derived from acebuche (ACE) oil‐ and extra virgin olive oil (EVOO)‐fed mice modulate nitric oxide (NO) metabolism in the retinal pigment epithelial cell line (ARPE19) with a hypertensive phenotype induced by angiotensin II (AngII).
Álvaro Santana‐Garrido   +6 more
wiley   +1 more source

Phytochemical studies of the herb, Tragopogon orientalis L. (Asteraceae). 1. The components of a petroleum ether extract

open access: yesActa Societatis Botanicorum Poloniae, 2014
Hydrocarbons, aliphatic alcohols, triterpenes and sterols were shown to occur in the herb, Tragopogon orientalis L. The following were obtained in crystalline form: n-triacontan, hexacosanol, (β-amyrin and lupeol.
Tadeusz Krzaczek, Helena D. Smolarz
doaj   +1 more source

Inhibitory activity of Kaki calyx extracts and their triterpene compounds on recombinant hepatitis C virus NS3/4A protease [PDF]

open access: yes, 2018
柿蔕のヘキサン、メタノール、50 % アセトン抽出物の、組み替えhepatitis C virus (HCV)の NS3/4A 蛋白質分解酵素に対する阻害活性を検討した。50 % アセトン抽出物が最も阻害活性が強く、この抽出物をSephadex LH20カラムで分画を行なった。得た各画分のうち阻害活性の強かった70 %メタノール画分を、さらにシリカゲルカラム/薄層クロマトグラフィーで分画し、トリテルペンのベルリン酸、オレアノール酸、ウルソール酸を分離した。これらのトリテルペンはpolycyclic ...
Isao OHTSUKA   +14 more
core   +1 more source

Chemical and biological investigations of Delonix regia (Bojer ex Hook.) Raf. [PDF]

open access: yes, 2010
U radu je opisana izolacija pet sastojaka petroleterske i diklormetanske frakcije metanolnog ekstrakta kore biljke Delonix regia: lupeol (1), epilupeol (2), β-sitosterol (3), stigmasterol (4) i p-metoksibenzaldehid (5). Nadalje, testirano je antimikrobno
A. Bauer   +18 more
core   +3 more sources

Triterpene saponins from Cyclamen hederifolium

open access: yesPhytochemistry, 2012
Five triterpene saponins never reported before, hederifoliosides A-E, and four known triterpene saponins were isolated from the tubers of Cyclamen hederifolium. The structures of hederifoliosides A-E were determined as 3β,16α-dihydroxy-13β,28-epoxyolean-30-oic acid 3-O-{[β-D-glucopyranosyl-(1 → 2)-O]-β-D-xylopyranosyl-(1 → 2)-O-β-D-glucopyranosyl-(1 ...
Hilal Altunkeyik   +5 more
openaire   +6 more sources

Biodegradable Sodium Alginate Films Incorporated With Jateorhiza palmata (Lam.) Miers Extract for Active Food Packaging

open access: yesPackaging Technology and Science, Volume 39, Issue 4, Page 367-382, April 2026.
Development of biodegradable sodium alginate films incorporated with J. palmata root extracts showing enhanced antioxidant and functional properties for active food packaging applications. ABSTRACT Biodegradable packaging helps reduce environmental impact by decomposing naturally and preventing plastic accumulation in ecosystems.
Carlos Augusto Badillo Almeira   +4 more
wiley   +1 more source

The role of phospholipid as a solubility- and permeability-enhancing excipient for the improved delivery of the bioactive phytoconstituents of Bacopa monnieri [PDF]

open access: yes, 2016
In an attempt to improve the solubility and permeability of Standardized Bacopa Extract (SBE), a complexation approach based on phospholipid was employed.
Bobde, Yamini S   +6 more
core   +2 more sources

Olive‐derived bioactive combinations: synergistic angiotensin‐I‐converting enzyme (ACE) inhibition and distinct mechanisms of triterpenic acids and phenolics

open access: yesJournal of the Science of Food and Agriculture, Volume 106, Issue 5, Page 2683-2695, 30 March 2026.
Abstract BACKGROUND Cardiovascular diseases, largely driven by hypertension, remain the leading cause of mortality worldwide. Angiotensin‐I‐converting enzyme (ACE) inhibition is a well‐established therapeutic approach; however, synthetic inhibitors are frequently associated with adverse effects.
Fátima Rubio‐Senent   +5 more
wiley   +1 more source

Constituintes químicos de Hyptidendron canum (Pohl ex Benth.) R. Harley (Lamiaceae)

open access: yesQuímica Nova, 2011
Chemical investigation of Hyptidendron canum stems resulted in the isolation of betulinic, ursolic and euscaphic acids. From the leaves were isolated 3β-O-β-galactopiranosilsitosterol, ursolic aldehyde, and mixtures of maslinic acid and 2α-hydroxyursolic
Geralda de Fátima Lemes   +2 more
doaj   +1 more source

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