Results 11 to 20 of about 25,452 (252)
Chiroptical Studies of Flavanone [PDF]
Chiral HPLC coupled to electronic circular dichroism and laser optical rotation detection (HPLC-ECD-OR) permitted the on-line chiroptical characterization of both enantiomers of racemic flavanone (1) as ECD(-)310-OR(-)670-flavanone and ECD(+)310-OR(+)670-flavanone for the first and second eluted peaks, respectively.
Marcelo A, Muñoz +2 more
openaire +2 more sources
Background: The study investigated four flavanone-derived γ-oxa-ε-lactones: a parent unsubstituted compound and its three derivatives with the methoxy group in positions 2′, 4′ and 8. Our objective was to find out if the introduction of the methoxy group
Aleksandra Pawlak +7 more
doaj +1 more source
An efficient and facile synthesis of flavanones catalyzed by N-methylimidazole [PDF]
N-Methylimidazole used as an efficient catalyst for the cyclization of 2’- hydroxychalcones to the corresponding flavanones in DMSO was investigated. The scope of this process has been studied and various flavanones were obtained exclusively in good ...
Wang Peng +5 more
doaj +1 more source
The intake of hesperidin-rich sources, mostly found in orange juice, can decrease cardiometabolic risk, potentially linked to the gut microbial phase-II hesperetin derivatives.
María Ángeles Ávila-Gálvez +3 more
doaj +1 more source
While flavanones exist in a variety of chemical forms, their favorable health effects are most prominent in their free form—aglycones. Their concentrations in grapefruit (Citrus × paradisi L.) extracts vary according to the extraction and hydrolysis ...
Jolita Stabrauskiene +3 more
doaj +1 more source
Bioavailability of orange juice (poly)phenols: the impact of short-term cessation of training by male endurance athletes [PDF]
Background: Physical exercise has been reported to increase the bioavailability of citrus flavanones. Objective: To investigate the bioavailability of orange juice (OJ) (poly)phenols in endurance-trained men before and after cessation of training for 7 ...
Crozier, Alan +7 more
core +2 more sources
Highly Sensitive Determination of Hesperidin Using Electrode Modified with Poly(Ferulic Acid)
Hesperidin is a major phenolic antioxidant in orange fruits and is responsible for their positive health effect. It is used as part of the therapy for blood vessel conditions. Methods for hesperidin quantification are of practical interest.
Elvira Yakupova, Guzel Ziyatdinova
doaj +1 more source
Dietary flavonoid intake and incidence of erectile dysfunction [PDF]
Background: The predominant etiology for erectile dysfunction (ED) is vascular, however limited data are available on the role of diet. A higher intake of several flavonoids reduces diabetes and cardiovascular disease (CVD) risk but no studies have ...
Cassidy, Aedin +2 more
core +1 more source
Bioactive flavanones from Luma chequen [PDF]
A bioassay-guided chemical study of a methanolic extract of fresh leaves of Luma chequen led to the isolation of lumaflavanones A (1), B (2) and C (3) whose structures are proposed on the basis of NMR spectroscopic data.
Cecilia Labbé +6 more
core +1 more source
Six γ-oxa-ε-lactones, 4-phenyl-3,4-dihydro-2H-1,5-benzodioxepin-2-one (5a) and its five derivatives with methoxy groups in different positions of A and B rings (5b−f), were synthesized from corresponding flavanones.
Witold Gładkowski +9 more
doaj +1 more source

