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Trisaccharide

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Title: Trisaccharide  
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Subject: Raffinose, Maltotriose, Melezitose, Inulin, Semen cryopreservation
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Trisaccharide

Trisaccharides are oligosaccharides composed of three monosaccharides with two glycosidic bonds connecting them. Similar to the disaccharides, each glycosidic bond can be formed between any hydroxyl group on the component monosaccharides. Even if all three component sugars are the same (e.g., glucose), different bond combinations (regiochemistry) and stereochemistry (alpha- or beta-) result in triaccharides that are diastereoisomers with different chemical and physical properties

Examples

Trisaccharide Unit 1 Bond Unit 2 Bond Unit 3
Isomaltotriose glucose α(1→6) glucose α(1→6) glucose
Nigerotriose glucose α(1→3) glucose α(1→3) glucose
Maltotriose glucose α(1→4) glucose α(1→4) glucose
Melezitose glucose α(1→2) fructose α(1→3) glucose
Maltotriulose glucose α(1→4) glucose α(1→4) fructose
Raffinose galactose α(1→6) glucose β(1→2) fructose
Kestose glucose α(1↔2) fructose β(1←2) fructose

References

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