Yin Win Khin,Choon Peng Teng,Michelle Dela Cruz Regulacio,Si Yin Tee,Leng Duei Koh,Michelle Low,Xian Jun Loh,Ming Yong Han
申请号：
US16469118
公开号：
US20200016064A1
申请日:
2017.12.20
申请国别(地区):
US
年份:
2020
代理人:
摘要：
In the present invention, a method of producing a colourant-incorporated silk fibroin is provided. In a preferred embodiment, the method comprises the steps of: i) decrystallizing a degummed silk fibroin in the presence of an acidic solution or a metal salt solution (i.e. lithium bromide)； ii) mixing one or more colourants with the decrystallized silk fibroin and iii) recrystallizing the decrystallized silk fibroin containing the colourants such that it forms a recrystallized region encapsulating the colourants, thereby obtaining the colourant-incorporated silk fibroin. In addition, a cosmetic product comprising the colourant-incorporated silk fibroin is provided.
