Advanced Effects of Tuberose Polysaccharide(TPS) as a Cosmetic Raw Material.

概要

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A new polysaccharide (TPS; Tuborose Polysaccharide) was secreted by callus cells induced by a petal from Polianthes tuberosa. It was found that TPS is useful in cosmetics because it provides protection from external stimuli, which are potentially harmful to the stratum corneum.When applied on skin, TPS formed a long lasting smooth film. Observation of the TPS film on the stratum corneum cell by electromicroscopy revealed that the flim formed a polymeric fine network structure, covered the rough cell surface perfectly resulting in a new smooth surface. Flexibility and volume of the film were insensitive to different humidity conditions.When investigating the cosmetic benefits of TPS, it was found that scaling disappeared after application of 0.5% TPS solution on fraky skin. In addition, 0.5% TPS solution seemed to protect the stratum corneum from recurring mechanical stimuli. The application of TPS lotion on the face protected the stratum corneum from dryness during the winter time. The protective effect of the TPS lotion on skin was proven when tested at a ski resort under cold, dry air conditions. These results suggested that TPS is a very useful raw material for skin care cosmetics.
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