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Urinary polyanions recovered from the urine samples of kidney stone-formers and normal controls were subjected to preparative agarose gel electrophoresis, which yielded fractions 1–5 in a decreasing order of mobility. In both groups, chondroitin sulfates were identified in the fast-moving fractions and heparan sulfates in the slow-moving fractions. Furthermore, two types of heparan sulfates were identified...
Amorphous lactose, whey-permeate and whey powders have been converted to their crystalline forms by exposure to air at various temperatures and relative humidities. The total time required for sorption, induction and crystallization of these powders was observed by following the time-dependent mass change of the powders during treatment. These experiments have shown that higher temperatures and relative...
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