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China Surfactant Detergent & Cosmetics ›› 2015, Vol. 45 ›› Issue (2): 94-98.doi: 10.13218/j.cnki.csdc.2015.02.008

• Developmentandapplicatio • Previous Articles     Next Articles

Molecular weight,hygroscopicity and moisturizing performance of polysaccharide from Rhizoma Bletillae

KONG Ling-shan1, YU Ling1, HU Guo-sheng2, CUI Shu-mei1, WANG Yi-li1   

  1. 1.School of Perfume and Aroma Technology,Shanghai Institute of Technology,Shanghai 201418,China;
    2.Shanghai INOHERB Cosmetics Co.,Ltd.,Shanghai 201900,China
  • Online:2015-02-22 Published:2019-04-02

Abstract: Crude polysaccharide was prepared by hot water extraction from Rhizoma Bletillae followed by settlement in ethanol aqueous solution.The crude polysaccharide was purified with chromatograph columns Sephadex G-200 and Sephadex G-25.Chemical structure and molecular weight of the purified polysaccharide was analyzed and detected by FTIR analysis and molecular weight test using High Performance Size Exclusion Chromatography Multi-angle Laser Light Scattering method.Hygroscopicity and moisturizing performance of the polysaccharide product were studied.Skin moisturizing test was evaluated by adding the polysaccharide product to cosmetic cream formulations.FTIR showed that the polysaccharide product belongs to pyranose type and contains mannose.Mw and Mn of the polysaccharide product were measured as 9.545×104 g/mol and 7.297×104 g/mol respectively.Under atmospheric condition of RH 43%,maximum hygroscopicity of the polysaccharide product achieves 6.0%,and its moisturizing ratio achieves 88.8%.Under atmospheric condition of RH 81%,maximum hygroscopicity of the polysaccharide product reaches 99.0%,and its moisturizing ratio reaches 105.5%.The results of skin moisture test showed that the polysaccharide product has good moisturizing effect.

Key words: additives of cosmetics, polysaccharide from Rhizoma Bletillae, molecular weight, hygroscopicity, moisturizing performance

CLC Number: 

  • TQ658