Cellobionic acid → Lactobionic Acid

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.

1. customis evaporated at room temperature
2. customThe transparent gel thus obtained
3. customthe solution thus obtained
4. waitwas left at room temperature
5. customFifty 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
6. customno more or minimal evaporation of water
7. customA clear gel film thus obtained

ORD record

ord-f7368d4a1e7a46dabe1962ff654c4406

Source dataset

uspto-grants-2004_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06740327B2