Results 161 to 170 of about 4,051 (210)
International Journal of Molecular Sciences, 2022 A. hydrophila is an important pathogen that mainly harms aquatic animals and has exhibited resistance to a variety of antibiotics. Here, to seek an effective alternative for antibiotics, the effects of umbelliferone (UM) at sub-MICs on A.
Huaqiao Tang +2 more
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Uptake and modification of umbelliferone by various seedlings
Phytochemistry, 2019Inspired by the recently discovered phenomenon of "horizontal natural product transfer" we investigated the putative uptake of phenolic specialized metabolites. Umbelliferone was chosen for this case study, since this coumarin as well as its derivatives can easily be determined by HPLC analyses. Barley (Hordeum vulgare L.), radish (Raphanus sativus L.),
Tahani Hijazin +2 more
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Umbelliferon: a review of its pharmacology, toxicity and pharmacokinetics
Inflammopharmacology, 2023Coumarin, a plant secondary metabolite, has various pharmacological activities, including antioxidant stress and anti-inflammatory effects. Umbelliferone, a common coumarin compound found in almost all higher plants, has been extensively studied for its pharmacological effects in different disease models and doses with complex action mechanisms.
Zhi Lin, Xi Cheng, Hui Zheng
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THE PREPARATION OF UMBELLIFERONE
Transactions of the Royal Society of South Africa, 1925(1925). THE PREPARATION OF UMBELLIFERONE. Transactions of the Royal Society of South Africa: Vol. 13, No. 3, pp. 255-257.
Ernest George, J. Moir
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An Efficient Synthesis of (+)‐Decursinol from Umbelliferone.
ChemInform, 2007AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Jung Ho Lee +3 more
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Umbelliferone – An antioxidant isolated from Acacia nilotica (L.) Willd. Ex. Del.
Food Chemistry, 2010 The bark and leaves of Acacia nilotica are consumed for their promising medicinal properties in several parts of the world. The aerial portion, including flowers, is used as fodder for animals.
Rajbir Singh +2 more
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A blue chemiluminescence in the reaction of umbelliferone with hypochlorite
Journal of Bioluminescence and Chemiluminescence, 1995AbstractA strongly fluorescing 7‐hydroxycoumarin (umbelliferone, U) oxidized in dilute (10 μmol/L‐0, 1 mol/L) aqueous solution with CIO− or CIO− + H2O2 (but not with H2O2 alone) produces a strong chemiluminescence (CL). Light emission kinetics depends on the pH of solution (4.0–10.5) and the reaction has a low activation energy Ea = 31 ± 2 kJ/mol (285 ...
D, Slawinska, J, Slawinski
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Antimicrobial properties of umbelliferone derivatives
Phytochemistry, 1971Abstract The inhibitory effects of umbelliferone and a number of its alkyl and acyl derivatives on the growth of a variety of bacteria, yeasts and molds have been examined. Herniarin and similar alkyl ethers are more effective antimicrobial agents than umbelliferone.
L. Jurd, A.D. King, K. Mihara
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Ultrafast branching in the excited state of coumarin and umbelliferone
Physical Chemistry Chemical Physics, 2013In the present work we have explored the ultrafast relaxation network of coumarin and umbelliferone (7-hydroxy-coumarin) using time-resolved femtosecond spectroscopy and quantum chemical calculations. Despite the importance of the photophysical properties of coumarin derivatives for applications in biomedicine, the low fluorescence quantum yield of ...
Caroline M, Krauter +4 more
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Antihyperglycemic Effect of Umbelliferone in Streptozotocin-Diabetic Rats
Journal of Medicinal Food, 2006The present study was designed to investigate the antihyperglycemic effect of Umbelliferone (UMB) in normal and streptozotocin (STZ)-diabetic rats. Diabetes was induced in adult male albino rats of the Wistar strain, weighing 180-200 g, by administration of STZ (40 mg/kg of body weight) intraperitoneally.
B, Ramesh, K V, Pugalendi
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