Flavonoids PDF Presentation
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Uploaded by EntrancedAstronomy
University of Babylon
2024
Hawraa Kareem
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Summary
This presentation describes flavonoids: a class of plant metabolites. It details their chemical classification, pharmacological effects, and provides examples.
Full Transcript
Phenolic compound can be described as compounds that contain a phenol moiety. Phenol itself is a benzene ring that is substituted with a hydroxyl group.Thus, its systematic name is hydroxybenzene (acidic) 1st IBCCEPR May 4-5, 2024 Babylon, Iraq are a class of polyphenolic secondary metabol...
Phenolic compound can be described as compounds that contain a phenol moiety. Phenol itself is a benzene ring that is substituted with a hydroxyl group.Thus, its systematic name is hydroxybenzene (acidic) 1st IBCCEPR May 4-5, 2024 Babylon, Iraq are a class of polyphenolic secondary metabolites found in plants, and thus commonly consumed in the diets of humans.have general formula (C6—C3—C6) Is this stricture is flavonoids? 1st IBCCEPR May 4-5, 2024 Babylon, Iraq 1-Flavones They have a double bond between positions 2 and 3 and a ketone in position 4 of the C ring 2-Flavonol:Compared to flavones, they have a hydroxyl group in position 3 of the C ring, which may also be glycosylated 3-Flavanones, also called dihydro-flavones, have the C ring saturated; therefore, unlike flavones, the double bond between positions 2 and 3 is saturated and this is the only structural difference between the two subgroups of flavonoids Double bond 2-3 lost =an OH -3 = ol Ketone -4 = one 1st IBCCEPR May 4-5, 2024 Babylon, Iraq 4-Flavanonols: also called dihydroflavonols, are the 3-hydroxy derivatives of flavanones; they are an highly diversified and multisubstituted subgroup. 5-isoflavones are a subgroup of flavonoids in which the B ring is attached to position 3 of the C ring. They have structural similarities to estrogens, such as estradiol, and for this reason they are also called phytoestrogens 1st IBCCEPR May 4-5, 2024 Babylon, Iraq 6-Neoflavonoids are a class of polyphenolic compounds ▪ Ruta Graveolens 1st IBCCEPR May 4-5, 2024 Babylon, Iraq