Cellobionic acid → Lactobionic Acid

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Reaction Steps

In one example, a gel matrix can be formed when aqueous solution comprising an oligosaccharide aldonic acid is evaporated at room temperature. The transparent gel thus obtained retains certain amount of water forming a clear gel matrix. The amount of water retention depends on individual oligosaccharide aldonic acid. For example, maltobionic acid 1 g in a beaker was dissolved in water 1 ml, and the solution thus obtained was left at room temperature. Fifty percent of the original water had been evaporated at the end of 24 hours, and 57% at the end of 48 hours, and 60% at the end of 72 hours, and no more or minimal evaporation of water could be detected after 72 hours. A clear gel film thus obtained contained 29% water complexed with maltobionic acid molecules. In the same manner, lactobionic acid formed a clear gel matrix with 14% water molecules and cellobionic acid formed a transparent gel with 7% water molecules. The formation of a gel matrix between an oligosaccharide aldonic acid and water has been found to have soothing, healing and slow-release effects in addition to other various beneficial effects to skin, mucous membrane, hair and nail.

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