Binary water-carbohydrate mixtures

We present here coarse grain simulation results of two simple binary water-carbohydrate mixtures that shed light on the mechanism of water diffusion in the supercooled and glassy state, the coupling of water mobility in the glass to the sub-Tg dynamics of the matrix, and the effect of the internal modes of the saccharide on the decoupling of water motion from carbohydrate translation. 

Time domain reflectometry has been used to study the hydration of L-xylo- and D-orohuto-ascorbic add solutions in water and water ethanol mixtures, differential scanning calorimetry and thermogravimetric analysis have been used to study hydration of a-maltose and amylose, a new physical chemical model describes the thermodynamic properties of binary water-carbohydrate... 

Carbohydrates are eluted in the order of increasing polarity, and retention decreases when water content increases. With an aminopropyl silica column, Koizumi et al. [54] showed the resolution of d-glycooligosaccharides up to a degree of polymerization of 30-35 under isocratic conditions, with a binary mixture of acetonitrile/water. Similarly, with the use of a polyamine polymer resin-bonded silica or an amino-bonded silica, separation of maltooligosac-charides up to a degree of polymerization of 28 was achieved [55],... 

Siebert, H.-C., Andre, S., Vliegenthart, J.F.G., Gabius, H.-J., and Minch, M.J. 2003. Suitability of binary mixtures of water with aprotic solvents to turn hydroxyl protons of carbohydrate ligands into conformational sensors in NOE and transferred NOE experiments. J. Biomolec. NMR 25 197-215. 

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