Orientated growth of crystalline anhydrous maltitol (4-O-alpha-D-glucopyranosyl-D-glucitol).
In the industrial crystallisation process of maltitol (C(12)H(24)O(11)), the presence of maltotriitol (C(18)H(34)O(16)) in the maltose syrup is responsible for a change of the crystal morphology. Two different crystal forms of maltitol were obtained: a prismatic one and a 'bipyramidal' one. IR and X-ray diffraction experiments (single crystal and powder) were performed to identify both crystal parameters. It is concluded that a structural polymorphism has to be ruled out. Close coincidences in some of the crystal cell parameters of maltitol and maltotriitol allow to assume the process through which maltotriitol affects the morphology of maltitol crystals.
Capet
F
F
Laboratoire de Dynamique et Structure des Matériaux Moléculaires, U.M.R. CNRS no. 8024, Université de Lille I, F-59655 Villeneuve d'Ascq, France. frederic.capet@univ.lille1.fr
Comini
S
S
Odou
G
G
Looten
P
P
Descamps
M
M
D002236:Carbohydrate Conformation; D003460:Crystallization; D018360:Crystallography, X-Ray; D008320:Maltose / Q000031:analogs & derivatives* / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D008956:Models, Chemical; D008958:Models, Molecular; D013012:Sorbitol / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D017550:Spectroscopy, Fourier Transform Infrared; D013402:Sugar Alcohols / Q000737:chemistry*; D014961:X-Ray Diffraction
D013402:Sugar Alcohols; D013012:Sorbitol; D008320:Maltose; C010745:maltitol