Abstract: The keratin of chicken feather was extracted by reduction-C method. The influence of reaction time and temperature on the yield and the viscosity of the keratin were discussed，and the extractive was analyzed by FTIR. Then the moisture retention and UV-resistance of the dialyzed keratin on the hair were investigated. The results indicated that the keratin solution with ideal yield and viscosity could be obtained at 70 ℃and the reaction time for 4 h. The infra-red spectrogram showed β-sheet structure in the extractive of keratin. Hair conditioned with keratin protein had good moisture retention. The keratin solution with concentration of 6.7 g/L could absorb ultraviolet in 200～350 nm.

Key words: chicken feathers, keratin, reduction-C method, hair care

摘要： 采用还原C法提取了鸡毛角蛋白，考察了反应时间和温度对角蛋白产率和黏度影响。采用傅里叶变换红外光谱仪对提取物进行了表征。利用透析得到的角蛋白对头发进行处理，考察了其保湿及抗紫外线的效果。结果表明：当温度70 ℃、时间4 h时能够制得产率和黏度均较为理想的角蛋白溶液。红外谱图表明提取物为β-折叠结构的角蛋白。经角蛋白处理后的头发具有较好的保湿性，紫外谱图表明浓度6.7 g/L的羽毛角蛋白溶液对波长200～350 nm的紫外线有较好的吸收作用。

关键词: 鸡毛, 角蛋白, 还原C法, 护发