Eriocitrin flavanone

Different extracts of Citrus were subjected to SPE on Cig cartridges to remove polar components. The retained flavonoids (mainly flavanones) were eluted with methanol-dimethyl sulfoxide, which enhanced solubility of hesperidin, diosmin, and diosmetin. Recoveries of eriocitrin, naringin, hesperidin, and tangeretin from spiked samples of mesocarp tissue exceeded 96%. Flavones were relatively abundant in the leaves. ... 

Dilute citrus juice (5 ml) with dimethylformamide (DMF, 10 ml) and 50 mM ammonium oxalate (10 ml), and then steam-bath for 10 min at 90°C. Cooling, adjust the volume to 50 ml with water, centrifuge (10 min at 2500 g), and then filter (Acrodisc, 5 and 0.45 /nm) the clarified juice. For standard preparation, prepare hesperidin (20 ppm) in DMF-water (2 1) solution and other flavanone glycosides (neohesperidin, eriocitrin, neoeriocitrin, naringin, and narirutin, 10 ppm) in the mobile phase. 

Eriocitrin (= 5,7,3, 4 - Tetrahydroxyflavanone-7-O- rutinoside) (flavanone O-glycoside) Mentha piperita (Lamiaceae), Myoporum tenuifolium (Myoporaceae), Citrus spp. (Rutaceae) ACE (28% inhibition at 300 pM) [76]... 

Eriodictyoi (= 5,7,3, 4 -Tetrahydroxyflavanone) (flavanone) Eriodictyon californicum (Hydrophyllaceae) Asteraceae, Fabaceae, Lamiaceae as 7-rhamnoside (Eriocitrin) Citrus spp. (Rubiaceae) AROM (0.6) (EST-R)... 

Flavanon glycosides eriocitrin, naringin, hesperidiii (see Aurantii pericarpiuni)... 

Since the very beginning, citrus flavonoids have awakened the interest of chemists. Thus, hesperidin was reported for the first time by Lebreton in 1928 [10], Nowadays it is widely accepted that hesperidin, neohesperidin, and eriocitrin are the major flavonoids in citrus fruits. Other flavanones that may be found, although in lower percentages, are isonaringin and isosakuranetin. Likewise, other compounds that occur as... 

Flavanone glycosides Naringenin (39) containing C-0 bound glucose at C-4 and rutinose at C-7 exhibits strong hypotensive effect. Also compounds 40 and 41 exhibit weak hypotensive effects, but poncirin (42) and eriocitrin (43) exhibit almost no hypotensive effect, other components (44-47) do not exhibit hypotensive effect at all. The hypotensive effects of 48-51 have not been determined, because of their poor solubility in water. 

Flavanone-7-O-glycosides (naringin, prunin, narirutin, hesperidin, neohesperidin, and eriocitrin) in lemon juice DL-Lactic acid yoghurts, and beverages (wine, sake, beer, and a soft drink)... 

Six flavanone glycosides (eriocitrin, naiirutin, hesperidin, neoeriocitrin, naringin, neohesperidin) were extracted from citrus Juices and resolved on a Cjg column... 

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