Three Regioselectively Acylated Flavonoid Aglycone Derivatives in Equimolar Yield at One Blow

2018 ◽  
Vol 3 (18) ◽  
pp. 5207-5211 ◽  
Author(s):  
Eleni Kyriakou ◽  
Androniki D. Kostagianni ◽  
Tahsin F. Kellici ◽  
Efstathia Giannopoulou ◽  
Konstantinos E. Siatis ◽  
...  
Keyword(s):  
Flavonoid Aglycone

Nomenclature of flavonoids (IUPAC Recommendations 2017)

2018 ◽  
Vol 90 (9) ◽  
pp. 1429-1486 ◽  
Author(s):  
Amélia P. Rauter ◽  
Marcus Ennis ◽  
Karl-Heinz Hellwich ◽  
Bernardo J. Herold ◽  
Derek Horton ◽  
...  
Keyword(s):  
Working Party ◽  
Flavonoid Aglycone

Abstract Flavonoid structures, found in nature or obtained by synthesis, may be very complex. These Recommendations provide a guide for flavonoid aglycone names. This will also allow the construction of the names for their polyglycosylated species with clarity and conciseness. A joint working party of IUPAC/IUBMB members has prepared these recommendations, which establish rules for the general nomenclature of flavonoids, providing examples of acceptable trivial names, and names derived from trivial names, together with semi-systematic and fully systematic names that follow the published IUPAC recommendations.

Leaf flavonoid aglycone patterns in the species of Dipterocarpaceae in Sri Lanka

2004 ◽  
Vol 32 (3) ◽  
pp. 329-336 ◽  
Author(s):  
Kunjani Joshi ◽  
G.Indrani Seneviratne ◽  
S.Priyangani Senanayake
Keyword(s):  
Sri Lanka ◽  
Flavonoid Aglycone

β-Glucosidase from tartary buckwheat immobilization on bifunctionalized nano-magnetic iron oxide and its application in tea soup for aroma and flavonoid aglycone enhancement

2019 ◽  
Vol 10 (9) ◽  
pp. 5461-5472 ◽  
Author(s):  
Xilian Yang ◽  
Yanli Ma ◽  
Lirong Li
Keyword(s):  
Iron Oxide ◽  
Tartary Buckwheat ◽  
Magnetic Iron Oxide ◽  
Amine Groups ◽  
Flavonoid Aglycone

β-Glucosidase (BG) was immobilized on the surface of bifunctionalized nano-magnetic iron oxide with silica and amine groups (Fe3O4@SiO2-NH2).

New Flavonoids from the Exudate of Baccharis bigelovii (Asteraceae)

1986 ◽  
Vol 41 (9-10) ◽  
pp. 946-948 ◽  
Author(s):  
Francisco J. Arriaga-Giner ◽  
Eckhard Wollenweber ◽  
Dagmar Hradetzky
Keyword(s):  
Heterocyclic Ring ◽  
Aromatic Acid ◽  
The Novel ◽  
Flavonoid Aglycone

Abstract Four flavonoids have been identified from the leaf and stem resin produced by Baccharis bigelovii (Asteraceae) in addition to twelve previously described aglycones. A flavonol (alnusin) and a dihydroflavonol (alnustinol) with 3,5,7-trihydroxy substitution had both been reported only twice before. The novel compound 2β,5,7-trihydroxy-flavanone is remarkable for its 2β-substitution at the heterocyclic ring. 7-Benzoyl-chrysin is the first flavone aglycone found as ester and the first flavonoid aglycone at all that is esterified with an aromatic acid.

Improvement of flavonoid aglycone and biological activity of mulberry leaves by solid-state fermentation

2020 ◽  
Vol 148 ◽  
pp. 112287 ◽  
Author(s):  
Na Guo ◽  
Ya-Wei Zhu ◽  
Yi-Wei Jiang ◽  
Hong-Kun Li ◽  
Zhi-Ming Liu ◽  
...  
Keyword(s):  
Biological Activity ◽  
Solid State ◽  
Solid State Fermentation ◽  
Mulberry Leaves ◽  
Flavonoid Aglycone

scholarly journals Preparation of a Lemon Flavonoid Aglycone and its Suppressive Effect on the Susceptibility of LDL to Oxidation Following Human Ingestion

2009 ◽  
Vol 15 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Yoshiaki MIYAKE ◽  
Chika SAKURAI ◽  
Mika USUDA ◽  
Masanori HIRAMITSU ◽  
Kazuo KONDO
Keyword(s):  
Suppressive Effect ◽  
Flavonoid Aglycone

The Presence of 5,7-Dihydroxyisoflavone in Peanuts by High Performance Liquid Chromatography Analyses

1985 ◽  
Vol 12 (2) ◽  
pp. 60-62 ◽  
Author(s):  
D. J Daigle ◽  
R. L Ory ◽  
W. D Branch
Keyword(s):  
High Pressure ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Arachis Hypogaea ◽  
High Performance ◽  
Aqueous Methanol ◽  
Uv Spectrum ◽  
Tentative Identification ◽  
Arachis Hypogaea L ◽  
Flavonoid Aglycone

Abstract The defatted flours of 43 colored and one white testa peanut (Arachis hypogaea L.) genotypes were analyzed for flavonoids. Flavonoids were extracted from the flours with aqueous methanol, hydrolyzed, and the resulting aglycones analyzed by high pressure liquid chromatography with a variable wavelenth detector. The UV spectrum and retention time coupled with those of standards allowed for the tentative identification of the principal flavonoid aglycone as 5,7-dihydroxyisoflavone (DHI).

Naringenin ameliorates renal and platelet purinergic signalling alterations in high-cholesterol fed rats through the suppression of ROS and NF-κB signaling pathways

2016 ◽  
Vol 7 (1) ◽  
pp. 183-193 ◽  
Author(s):  
Yassine Chtourou ◽  
Zeineb Kamoun ◽  
Wissem Zarrouk ◽  
Mohammed Kebieche ◽  
Choumous Kallel ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Protective Effect ◽  
Mitochondrial Dysfunction ◽  
Renal Tissue ◽  
Purinergic Signalling ◽  
High Cholesterol ◽  
Cholesterol Levels ◽  
Flavonoid Aglycone ◽  
And Oxidative Stress

The in vivo protective effect of Naringenin (NGEN), a natural flavonoid aglycone of naringin, against the mitochondrial dysfunction and oxidative stress induced by high cholesterol levels in the renal tissue.

scholarly journals Determination of Phenolic Compounds in Saussurea salicifolia (L.) DC. by HPLC

2009 ◽  
Vol 27 (Special Issue 1) ◽  
pp. S259-S261 ◽  
Author(s):  
G. Chunsriimyatav ◽  
I. Hoza ◽  
P. Valášek ◽  
S. Skrovanková ◽  
D. Banzragch ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Ethyl Acetate ◽  
Flow Rate ◽  
Mobile Phase ◽  
Hplc Analysis ◽  
Ethyl Acetate Fraction ◽  
Flavonoid Aglycones ◽  
Calibration Curves ◽  
Flavonoid Aglycone

The flavonoid aglycone content of ethyl acetate fraction of <I>Saussurea salicifolia</I> (L.) DC was analysed by the HPLC “Agilent” 1100 with Alltech C18 &mu;m column, UV254 detector, flow rate: 1 ml/min, mobile phase: acetonitrile: water:acetic acid (36:65:1). Eleven flavonoid aglycones in the ethyl acetate fraction of <I>Saussurea salicifolia</I> were detected by HPLC analysis. The quantification of each compound was done according to the peak area measurements which were reported in calibration curves of the corresponding standards. The result revealed that <I>Saussurea salicifolia</I> consists of flavonoid aglycones of quercetin (28.62%) and kaempferol (3.01%).

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