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A disaccharide of d-glucose and l-rhamnose, and a component of rutin.
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The poorly digestible carbohydrates, such as nonstarch polysaccharides, resistant starch, nondigestible oligosaccharides (NDOs), and polyphenols, are source of various sugars including glucose, galactose, rhamnose, and rutinose. The carbohydratehydrolyzing enzymes of colonic microbiota promote the fermentation of prebiotics, and these produce hydrogen, methane, carbon dioxide, and SCFAs.
A fragment ion at m/z 447 was more obvious in peak 10 (8%) than in peak 11, which implied that the disaccharide was deduced to be neohesperidose in peak 10 and rutinose in peak 11, respectively.
Quercetin and one of its glucosides, quercetin-3-0 rutinose (rutin), are among the most abundant flavonoids in vegetables and fruits (Aherne and O'Brien.
Rutin, a flavonoid composed of flavonol quercetin and disaccharide rutinose, has anti-inflammatory, hypotensive effect.
Rutin, comprising quercetin and disaccharide rutinose, is a member of flavonoids also called vitamin P present in Herba Leonuri.
A cianidina 3-rutinosideo (pico 2) apresentou ion molecular a m/z 595 e dois fragmentos a 287 e 449 u, o primeiro fragmento correspondendo a aglicona cianidina, como resultado da perda de rutinose (308 u), e o fragmento a m/z 449 correspondendo a aglicona cianidina mais uma molecula de hexose, como o resultado da perda de uma desoxi-hexose [[M-146].sup.+].
Other sugars involved are glucose, rhamnose, xylose, arabinose and the disaccharide rutinose. Unlike other flavonoids, flavan-3-ols are generally found in the free rather than in the glycosylated forms.
The compound in fescue eluting at RT = 19.5 min was isolated as described above and on acid hydrolysis yielded rhamnose, glucose, rutinose, and quercetin as determined by GC and HPLC co-elution with authentic standards indicating the compound as rutin.
Rutin is a flavonol glycoside composed of quercetin and the disaccharide rutinose (Figure 1).
Rutin (also known as vitamin P or rutoside) is a flavonol glycoside found in many plants and fruits [237], resulting from the combination of the flavonol quercetin and the disaccharide rutinose. Indeed, upon oral administration, the disaccharide is cleaved, and quercetin is liberated, so that rutin's anti-inflammatory actions appear to be due to the quercetin-mediated effects via the inhibition of the proinflammatory chain triggered by TNF-[alpha]-induced NF-[kappa]B activation [238].