title: Solubility of carbohydrates in heavy water.
abstract: The solubility of several mono-(glucose and xylose), di-(sucrose and maltose), tri-(raffinose) and cyclic (α-cyclodextrin) saccharides in H(2)O and in D(2)O were measured over a range of temperatures. The solution enthalpies for the different carbohydrates in the two solvents were determined using the vant' Hoff equation and the values in D(2)O are presented here for the first time. Our findings indicate that the replacement of H(2)O by D(2)O remarkably decreases the solubilities of the less soluble carbohydrates, such as maltose, raffinose and α-cyclodextrin. On the other hand, the more soluble saccharides, glucose, xylose, and sucrose, are practically insensitive to the H/D replacement in water.
authors.affiliation: Department of Physical Chemistry, Institute of Chemistry, University of Campinas-UNICAMP, PO Box 6154, 13084-862 Campinas, SP, Brazil.
authors.forename: Marcus V C
authors.initials: MV
authors.lastname: Cardoso
authors.forename: Larissa V C
authors.initials: LV
authors.lastname: Carvalho
authors.forename: Edvaldo
authors.initials: E
authors.lastname: Sabadini
mesh_terms: D002241:Carbohydrates / Q000737:chemistry*; D017666:Deuterium Oxide / Q000737:chemistry*; D005947:Glucose / Q000737:chemistry; D012995:Solubility; D013395:Sucrose / Q000737:chemistry; D014867:Water / Q000737:chemistry; D014994:Xylose / Q000737:chemistry
chemical_list: D002241:Carbohydrates; D014867:Water; D013395:Sucrose; D014994:Xylose; D005947:Glucose; D017666:Deuterium Oxide