Global ETD Search
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Showing 1 to 12 of 12 for “"Flavanones"”.
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An excursion into the synthesis of novel flavanones
… was to develop new methodology for synthesizing flavanones asymmetrically in a manner that could be extended to the synthesis of novel indoloflavanone analogues. The designated approach was via an asymmetric aldol reaction catalysed by a chiral organocatalyst followed by an intramolecular …
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In vivo human acute cardiovascular effects of dietary flavanones – underlying mechanisms of action and impact of flavanone metabolism
… cardiovascular (CV) effects of dietary citrus flavanones. However, as systematically reviewed, there is currently only limited supporting evidence from randomised controlled trials (RCT); in particular, relatively little is known about which flavanone-derived circulating metabolites might be …
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Effect of alternative sweeteners on the bioavailability and bioactivity of anthocyanins and flavanones from a maqui-lemon-based beverage
[SPA] Esta tesis doctoral se presenta bajo la modalidad de compendio de publicaciones. El objetivo de esta tesis doctoral se ha centrado en el estudio de la biodisponibilidad de los (poli)fenoles de una nueva bebida, elaborada como una mezcla de maqui (Aristotelia chilensis) y cítricos (base de …
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The Chemical Analysis and Biological Activities of the Secondary Metabolites from Dalea mollis and Dalea albiflora
… Two known pterocarpans, two known flavanones, and an isoflavonoid were isolated and identified from <em>D. mollis</em>. Two new flavanones (albifloran A <strong>9</strong> and albifloran B <strong>10</strong>), one known pterocarpan, and three known flavanones were isolated and …
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Tannin geochemistry of natural systems: method development and application
… extender units, in addition to flavones, flavanones, triterpenoids, and carboxylic acids.Molecular tannin signatures were obtained from 117 source tissues, including leaves, needles, woods, and barks from tropical and temperate forests, coasts, and grasslands. Conifer needles were …
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Cloning, Expression, and Biochemical Characterization of Recombinant Putative Glucosyltransferases Clone 3 and 8 from Grapefruit (Citrus paradisi)
… high levels of flavonoid glycosides such as flavanones and flavones. Flavonoids have a vast array of important functions in plants and also in humans. Glucosyltransferases (GTs) are enzymes responsible for glucosylation reactions. In our pursuit to study the structure and function of …
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Synthesis and kinetics of isomerisation of 2',6'-dihydroxychalcones
… and to the high stability of the 5-hydroxyflavanones as compared to simple flavanones (relative to their isomeric chalcones) were also considered. The low stability of the 2' ,6'-dihydroxychalcones, compared to the 2'-hydroxychalcones (relative to their flavanones) was found to be due to a …
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Flavonoid Intake and Prostate Cancer Aggressiveness In African Americans and European Americans
… cancer aggressiveness were found. In addition, flavanones and flavones were significantly inversely associated with aggressiveness for AA men. In general, decreasing risks with increasing intakes were found for flavonols and flavanols, although these odds ratios did not reach statistical …
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Flavonoid Consumption of College Athletes
… most abundant subclass, followed by flavonols, flavanones, anthocyanidins, and flavones. These rankings are consistent with findings from similar studies. The main food group sources of flavonoids were fruits, beverages, and vegetables. Top five food sources for total flavonoids were black tea, …
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Citrus Limonoids: Functional Chemicals in Agriculture and Foods
… an alkaline aqueous solution in order to extract flavanones and limonoids. In the present paper the operational conditions of debittering were evaluated and optimized by determining the limonin content of samples from various stages of fiber production; It was also verified if the recovery of …
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Effects of APOA1/C3/A4/A5 Gene Cluster and Flavonoids Intake on Cardiovascular Disease Risk Factors in U.S. Populations
… the most abundant flavonoid class followed by flavanones (25.9±1.1mg/day), flavonols (19.6±0.9mg/day), anthocyanidins (9.5±0.6mg/day), isoflavones (2.4±0.1mg/day), and flavones (1.0±0.0mg/day). The three most dominant individual flavonoids were catechin (167.5±6.1mg/day), epicatechin …
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Tropical citrus antioxidants and catabolism of phenolics in green tea, coffee, cocoa and orange juice
… structure. In general, most of tropical citrus flavanones were neohesperidoside conjugates, which are responsible for the bitter taste of the fruits and juices. Tropical citrus essential oils were extracted by steam distillation (SD) and simultaneous distillation extraction (SDE) and analysed …