| 1. | The glycosylation of ouabagenin to add the rhamnose moiety produced ouabain.
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| 2. | This enzyme hydrolyzes the glycoside quercitrin to release quercetin and L-rhamnose.
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| 3. | Rhamnose occurs in nature in its D-form.
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| 4. | Rhamnose is also produced by microalgae belonging to class Bacillariophyceae ( diatoms ).
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| 5. | Rhamnose is commonly bound to other sugars in nature.
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| 6. | Quercetin forms the glycosides quercitrin and rutin together with rhamnose and rutinose, respectively.
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| 7. | Additionally, the mammalian metabolism of rhamnose, the sugar component of ouabain, is unusual.
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| 8. | They ferment D-glucose and also ferment D-mannitol, L-rhamnose and cellobiose.
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| 9. | Chemically, gum karaya is an acid polysaccharide composed of the sugars galactose, rhamnose and galacturonic acid.
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| 10. | Exceptions are the methyl pentoses L-fucose and L-rhamnose and the pentose L-arabinose.
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