【摘要】 将蚕丝脱胶后的丝胶溶液经过脱色、酶解、离子交换纯化、浓缩、喷雾干燥等加工得到水溶性丝胶粉。对制得的丝胶粉进行了氨基酸组分分析和分子质量测定,并对其进行了抑制酪氨酸酶活性及对皮肤的保湿和吸湿性能考察。结果表明:丝胶粉中主要含有16种氨基酸;丝胶粉分子质量大小不同其应用体系亦不同;丝胶粉质量分数为1%时对皮肤黑色素生成的抑制率可达52.39%;电镜观察显示丝胶粉对头发有很好的护理和修复效果。更多还原

【Abstract】 Water soluble sericin powder product was prepared with sericin solutions obtained from degumming of silk by processing including decolorization,enzymatic hydrolysis,ion exchange purification,concentration,and spray drying et al. Amino acid composition analysis,molecular mass determination,inhibition effect of tyrosinase activity,skin moisturizing as well as hygroscopic performance of the sericin powder product were investigated. Results showed that,the sericin powder product mainly contains 16 kinds of amino acid; sericin powder products with separate molecular mass were suitable for different application fields; when mass fraction of the sericin powder product is 1%,the inhibition ratio on skin melanin achieves 52. 39%. Electron microscope observation showed that the sericin powder product displays good nursing and restoring effect on human hair.更多还原