Extracting and purifying method for tyrosine derivatives

• Main Authors: HE LIANSHUN, ZHANG YUFENG, MI ZAOJI, MA JING, LI BINSHUI
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2017
• Subjects: CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PEPTIDES

The invention relates to the technical field of preparation of tyrosine derivatives and particularly discloses an extracting and purifying method for the tyrosine derivatives. The extracting and purifying method comprises the following steps: carrying out visible impurity separation by a ceramic membrane, activated carbon decoloration, electrodialysis desalination, polymer protein impurity separation by a polymer ultrafiltration membrane, vacuum concentration, activated carbon decoloration and crystallization on transformation liquid obtained by the tyrosine derivatives produced by a microbial enzyme transformation method in sequence to obtain tyrosine derivative coarse powder. According to the method disclosed by the invention, the transformation liquid can be quickly treated to obtain a tyrosine derivative crude product, and the content of impurities in a product is reduced; the quality and the yield of the product are improved; the extracting and purifying method has the advantages of being low in cost, si