Naringenin, the predominant flavanone in grapefruit, mainly occurs as glycosides such as naringenin-7- rhamnoglucoside or naringenin-7-glucoside. This study compared kinetics of absorption of naringenin and its glycosides in rats either after a single flavanone-containing meal or after adaptation to a diet for 14 days. Regardless of the diet, circulating metabolites were glucurono- and sulfocon...

Four apigenin glycosides were isolated from the ethyl acetate extract of the leaves of Mayodendron igneum Fam.Bignoniaceae. They were identified as apigenin 7-O-glucoside; 6-methoxy apigenin-7-O-glucoside; 6-methoxy apigenin-7-O-rhamnoglucoside and 6-hydroxy apigenin-7-O-rhamnoglucoside. In addition an isoflavone glycoside was isolated, and identified as genistin 5,4'-methyl ether. Ethanol (80%...

Whereas many reports now exist on flavonoids of liverworts only few publications are concerned with the flavonoid pattern of mosses [1—5]. The detection of an apigenin 7-O-rhamnoglucoside from H yloco­ mium splendens was reported [6]. Screening chroma­ tograms of samples of H. splendens collected at about 20 different localities showed however a much richer flavonoid pattern as supposed previou...

The antioxidant activity of the aqueous ethanolic extract of Doum leaves, Hyphaene thebaica L. (Palmae), was studied. Data obtained showed that the extract scavenged superoxide anion radicals (IC50=1602 μg/ml) in a dose dependant manner using xanthine/hypoxanthine oxidase assay. Four major flvonoidal compounds were identified by LC/SEI as; Quercetin glucoside, Kaempferol rhamnoglucoside, Dimeth...

BACKGROUND In recent years, flavonoids have been revealed to be helpful in the treatment of many diseases. Rutin (3,3',4',5,7-pentahydroxyflavone-3-rhamnoglucoside) is an important flavonoid that is consumed in the daily diet. It is also known as vitamin P and quercetin-3-O-rutinoside. In addition, it is found in many food items, vegetables, and beverages. The cytoprotective effects of rutin, i...

Hesperetin (3',5,7-trihydroxy 4'-methoxyflavanone) and its glycoside hesperidin (hesperetin 7-rhamnoglucoside) in oranges have been reported to possess pharmacological effects related to anti-obesity. However, hesperetin and hesperidin have not been studied on suppressive effects on appetite. This study examined that hesperetin and hesperidin can stimulate the release of cholecystokinin (CCK), ...

background: the genus lomatopodium fisch. & c.a.mey., belongs to apiaceae family and contains one herbaceous species growing wildly in iran. there are only a few papers about the chemical constituents of these plants. here, we focused on the isolation and identification of the main flavonoid glycosides and sterols from the aerial parts of l. staurophyllum, which has not been previously reported...

Plants contain a flavonoid called naringin, which has variety of medicinal uses. Tomatoes, grapefruits, and other citrus fruits the flavanone glycoside known as 4′,5,7-trihydroxyflavanone-7-rhamnoglucoside. There are seven enzyme-catalyzed stages in phenylpropanoid route, runs from phenylalanine to prunin. Naringin possesses anti-inflammatory, anti-tumor, antioxidant effects. been shown have im...

Fig fruit has been a typical component in the health-promoting Mediterranean diet for millennia. To study the potential health-promoting constituents of fig fruits, six commercial fig varieties differing in color (black, red, yellow, and green) were analyzed for total polyphenols, total flavonoids, antioxidant capacity, and amount and profile of anthocyanins. Using reversed-phase liquid chromat...

Rutin belongs to a class of plant secondary metabolites called flavonoids. Rutin is believed to be a vital nourishing supplement as it is able to make the capillaries stronger. But when administered orally it shows poor absorption because of less lipophilicity. To overcome this limitation, the present study was aimed to develop Rutinphospholipid complex in different ratio to improve the lipophi...