Results 41 to 50 of about 394 (142)
This review provides an extensive and critical synthesis of current knowledge on umbelliprenin, integrating phytochemical, analytical, biological, ecological, and food science perspectives, and identifies priorities for future research. ABSTRACT Umbelliprenin (7‐farnesyloxycoumarin) is an oxyprenylated coumarin that has gained increasing attention in ...
Chiara Collevecchio +4 more
wiley +1 more source
Biochar and solid olive‐mill waste differently affected abscisic acid (ABA) bioavailability and bioactivity in soil by altering ABA sorption and soil chemical and microbial properties. The type of amendment and the mechanisms by which it affected ABA bioavailability in soil were key determinants of the final effects on ABA bioactivity. ABSTRACT Natural
María del Valle Muñoz‐Muñoz +2 more
wiley +1 more source
A cell‐based high‐throughput screening system utilizing the luminescent probe LISA‐103 was developed to monitor γ‐glutamylcyclotransferase (GGCT) activity in cancer cells. Through this assay, plumbagin was identified as a novel GGCT inhibitor that induces cell cycle arrest and suppresses cancer cell growth. ABSTRACT γ‐Glutamylcyclotransferase (GGCT) is
Keiko Taniguchi +10 more
wiley +1 more source
Investigation of Binding Properties of Umbelliferone (7Hydroxycoumarin) to Lysozyme
The binding interaction of lysozyme and umbelliferone (7hydroxcoumarin, 7HC) was investigated by UV-vis absorption and fluorescence quenching. It was obtained from fluorescence spectra that the fluorescence quenching of lysozyme by 7HC was probably a result of the formation of lysozyme-7HC complex and binding parameters were determined according to the
openaire +3 more sources
Food‐grade processing of Pastinaca sativa (parsnip) converts a nutrient‐rich plant matrix (dietary fiber, fructans, phenolics) through washing/slicing/enzymatic treatment and ingredient preparation into functional food ingredients, including fiber concentrates, antioxidant‐rich fractions, and parsnip powders/extracts.
Somanjana Khatua +7 more
wiley +1 more source
Study of Umbelliferone Hydroxylation to Esculetin Catalyzed by Polyphenol Oxidase
We characterize umbelliferone, a derivative of 2,4-dihydroxycoumaric acid, as a substrate of polyphenol oxidase. This enzyme hydroxylates umbelliferone to esculetin, its o-diphenol, and then oxidizes it to o-quinone. The findings show that umbelliferone, an intermediate in one of the coumarin biosynthesis pathways, may be transformed into its o ...
Garcia-Molina, Mary of the Sea +4 more
openaire +3 more sources
The possible presence of methylpsoralens as undesired inquinants in synthetic methylangelicins has been avoided through a synthetic pathway starting from umbelliferones carrying a methyl group in the 6-position.
Carlassare F +9 more
core
Umbelliferone: Sources, chemistry and bioactivities review
Umbelliferone is a 7-hydroxycoumarin that is a pharmacologically active agent. It is widely distributed within the Rutaceae and Apiaceae (Umbelliferae) families and is efficiently extracted using methanol. Umbelliferone is a fluorescing compound used as a sunscreen agent.
openaire +2 more sources
Umbelliferone from tea leaves [PDF]
K. G. Mikaberidze, I. I. Moniava
openaire +1 more source
Halogenation of hydroxy coumarins. Part I. Bromination of umbelliferones
Varadarajan, S.
core +2 more sources

