Flavonol glucuronides from red raspberry, Rubus ideaeus (Rosaceae)

Ryan, John J.; Coffin, D E

doi:10.1016/0031-9422(71)85048-3

Cited by 16 publications

(10 citation statements)

References 11 publications

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“…Quercetin-glucuronide has been reported in raspberries and strawberries (Maatta-Riihinen et al, 2004;Ryan & Coffin, 1971), although Maatta-Riihinen et al (2004), only detected kaempferol-glucuronide in strawberries. The pharmacokinetics of flavonols in humans is reported to differ significantly between food sources depending on the type of glycosides that they contain (Manach & Donovan, 2004).…”

Section: Anthocyaninsmentioning

confidence: 97%

Identification of phenolic compounds in strawberries by liquid chromatography electrospray ionization mass spectroscopy

et al. 2006

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Strawberry (Fragaria x ananassa Duch.) fruits contain phenolic compounds that have antioxidant, anticancer, antiatherosclerotic and anti-neurodegenerative properties. Identification of food phenolics is necessary since their nature, size, solubility, degree and position of glycosylation and conjugation influence their absorption, distribution, metabolism and excretion in humans. Freezedried whole strawberry fruit powder and strawberry fruit extracts were analyzed by liquid chromatography electrospray ionization mass spectrometry (LC-ESI-MS) methods. Phenolics were identified as ellagic acid (EA), EA-glycosides, ellagitannins, gallotannins, anthocyanins, flavonols, flavanols and coumaroyl glycosides. The anthocyanidins were pelargonidin and cyanidin, found predominantly as their glucosides and rutinosides. The major flavonol aglycons were quercetin and kaempferol found as their glucuronides and glucosides. LC-ESI-MS/MS methods differentiated EA from quercetin conjugates since both aglycons have identical molecular weights (302 g/mol). The identification of strawberry phenolics is necessary to generate standardized materials for in vitro and in vivo studies and for the authentication of strawberry-based food products.

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Section: Anthocyaninsmentioning

confidence: 97%

Identification of phenolic compounds in strawberries by liquid chromatography electrospray ionization mass spectroscopy

et al. 2006

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“…On the other hand, Rommel and Wrolstad (1993b) found that total content of flavonols in 55 samples of experimental and commercial red raspberry juices ranges from 15.7 to 286 µg/kg. Several flavonol glycosides have been identified by Ryan and Coffin (1971), Henning (1981) and Mullen et al (2002a) in fresh raspberry fruits: quercetin 3-glucuronide, quercetin 3-glucoside, quercetin 3-xylosylglucuronide, quercetin 3-galactoside, methylquercetin-pentoside (probably xyloside) and kaempferol 3-glucoside. Later, Rommel and Wrolstad (1993a) detected more quercetin and kaempferol derivatives, but did not attempt to characterize them.…”

Section: Raspberriesmentioning

confidence: 99%

Phenolics in Food and Nutraceuticals

Shahidi¹,

Naczk

2003

618

426

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has reached the highest academic level, university research professor, in the department of biochemistry at Memorial University of Newfoundland (MUN). He is also cross-appointed to the department of biology, ocean sciences centre and the aquaculture program at MUN. Dr. Shahidi is the author of nearly 500 research papers and book chapters and has authored or edited over 30 books and made over 300 presentations at scientific conferences. His research contributions have led to several industrial developments around the globe. Dr. Shahidi's current research interests include different areas of nutraceuticals and functional foods as well as marine foods and natural antioxidants.Dr. Shahidi serves as the editor-in-chief of the Journal of Food Lipids and is an editorial board member of

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“…The non-anthocyanin flavonoids present in red raspberries are mainly flavonols (3hydroxyflavones; Figure 1), catechins, and trace amounts of flavones (Henning, 1981;Herrmann, 1974Herrmann, ,1976Mosel and Herrmann, 1974; Ryan and Coffin, 1971). Flavonols are apparently present as 3-glycosides (i.e., glucuronides, glucosides, galactosides, xylosylglucuronides, xylosylglucosides) of the flavonols quercetin and kaempferol (Henning, 1981;Herrmann, 1974Herrmann, ,1976; Ryan and Coffin, 1971). Only fresh raspberries and a few European cultivars have been investigated in these studies, and there is little or no * Author to whom correspondence should be addressed [phone (503) 737-3591; fax (503) .…”

Section: Introductionmentioning

confidence: 99%