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China Surfactant Detergent & Cosmetics ›› 2022, Vol. 52 ›› Issue (12): 1307-1313.doi: 10.3969/j.issn.1001-1803.2022.12.007

• Development and application • Previous Articles     Next Articles

Effects of potassium cocoyl hydrolyzed oat protein on the performance of the amino acid facial cleanser

Guo Hua1,Xu Jin1,*(),He Yunping1,Xu Hujun2   

  1. 1. Wuxi Chaohui Daily Chemical Technology Co., Ltd., Wuxi, Jiangsu 214122, China
    2. School of Chemical & Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
  • Received:2022-01-06 Revised:2022-12-02 Online:2022-12-22 Published:2022-12-29
  • Contact: Jin Xu E-mail:xujin@gzchaohui.com.

Abstract:

Sodium cocoyl glycinate is a common amino acid surfactant with reasonable price. It is highly biodegradable, resistant to hard water, and has excellent foaming ability, which has been widely used in personal care amino acid cleansers. However, the amino acid cleansing cream prepared by using a surfactant alone (i.e., sodium cocoyl glycinate), has poor foaming performance and stability, so it is necessary to obtain amino acid cleansers with excellent foam performance, bright appearance and good stability by compounding other surfactants. Within a certain pH range, the effects of four mild surfactants on the crystalline amino acid facial cleanser prepared with sodium cocoyl glycinate as the main surfactant were studied. The crystallizing temperature, high-temperature stability, appearance, foaming performance and irritation were measured. Through comparative experiments, the results show that potassium cocoyl hydrolyzed oat protein can significantly improve the crystallizing temperature and high-temperature stability of the cleansing cream. The foam volume was tested by the Ross-Miles foam analyzer, and the results show that potassium cocoyl hydrolyzed oat protein can increase the foam volume of the cleansing cream and improve the foam stability. The results of the appearance of the cleansing cream as observed by a polarizing microscope show that, potassium cocoyl hydrolyzed oat protein has benefit in forming more uniform and fine crystals. The irritation of the cleansing cream was tested by zein test, and the results show that potassium cocoyl hydrolyzed oat protein can significantly reduce the irritation of the cleansing cream system, making the cleansing cream milder. In conclusion, potassium cocoyl hydrolyzed oat protein can improve the performance of crystalline amino acid cleansing cream with sodium cocoyl glycinate as the main surfactant. This work may contribute in developing stable amino acid cleansing cream for the personal care industry.

Key words: potassium cocoyl hydrolyzed oat protein, sodium cocoyl glycinate, amino acid cleanser, crystallizing temperature, stability, foam performance, irritation

CLC Number: 

  • TQ423