Results 31 to 40 of about 381 (141)
ChemistryEurope, Volume 4, Issue 2, February 2026.The cis‐2,3‐bis(trifluoromethyl)cyclopropyl chemotype is introduced. The steric demand of this motif is intermediate between that of the heptafluoroisopropyl and prefluorotertbutyl groups; yet, it induces significantly less lipophilicity than these due to its facial polarity.
Daniel Gaviña +5 more
wiley +1 more source
eFood, Volume 7, Issue 1, February 2026.From farm to pharma, this review details the engineering of quality in medicinal plants through a science‐driven approach: it first elucidates how genetic and environmental factors inscribe the plant's phytochemical and phytopharmacological profile before harvest, and then dissects the postharvest techniques and technologies—chemical and thermal pre ...
Elyas Aryakia
wiley +1 more source
Effects of umbelliferone in a murine model of allergic airway inflammation [PDF]
European Journal of Pharmacology, 2009 The therapeutic effects of umbelliferone (30, 60 and 90 mg/kg), a coumarin isolated from Typha domingensis (Typhaceae) were investigated in a mouse model of bronchial asthma. BALB/c mice were immunized and challenged by nasal administration of ovalbumin.
Juliana F, Vasconcelos +7 more
openaire +2 more sources
Journal of the Science of Food and Agriculture, Volume 106, Issue 3, Page 1839-1851, February 2026.Abstract BACKGROUND Valorizing sugar‐rich food waste in biorefineries offers a sustainable route to bio‐based products. Grapefruit peel (GP), representing about 50% of the fruit's weight, is rich in sugars (soluble and insoluble) and polyphenols such as flavonoids.
María del Prado García‐Aparicio +2 more
wiley +1 more source
American Journal of Botany, Volume 113, Issue 1, January 2026.Abstract Premise Floral pigments primarily serve to attract pollinators through color display and also contribute to protection against environmental stress. Although pigment composition can be plastically altered under stress, its impact on pollinator color perception remains poorly understood.
Eduardo Narbona +6 more
wiley +1 more source
Cereal Chemistry, Volume 103, Issue 1, Page 93-109, January/February 2026.ABSTRACT Background and Objectives Quinoa (Chenopodium quinoa Willd.) is a pseudocereal with documented benefits for human health. The macronutrient composition and phytochemical content of the grain are known to vary depending on the variety and the growing location.
Vassilios Raikos +7 more
wiley +1 more source
Study of Umbelliferone Hydroxylation to Esculetin Catalyzed by Polyphenol Oxidase
Biological and Pharmaceutical Bulletin, 2013 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
, 1984 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
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Umbelliferone from tea leaves [PDF]
Chemistry of Natural Compounds, 1974 K. G. Mikaberidze, I. I. Moniava
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