Trehalulose

Trehalulose is a disaccharide made up of a molecule of fructose bound to a molecule of glucose. Like isomaltulose, it is a structural isomer of sucrose that is present in small quantities in honey. It makes up 50% of sugars in the honeydew of silverleaf whiteflies and is synthesised from sucrose by some bacteria, such as Protaminombacter rubrum. Because the anomeric carbon of the fructose moiety is not involved in the glycosidic bond, it is a reducing sugar.

Trehalulose
Names
IUPAC name
1-O-α-D-Glucopyranosyl-D-fructose
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.051.967
EC Number
  • 257-183-7
KEGG
UNII
  • InChI=1S/C12H22O11/c13-1-4(15)7(17)8(18)5(16)3-22-12-11(21)10(20)9(19)6(2-14)23-12/h4,6-15,17-21H,1-3H2/t4-,6-,7-,8-,9-,10+,11-,12+/m1/s1 Y
    Key: NMELTECMHKKXLF-DGQJZECASA-N
  • C(C1C(C(C(C(O1)OCC(=O)C(C(C(CO)O)O)O)O)O)O)O
Properties
C12H22O11
Molar mass 342.297 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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