CRYSTAL OF AMINO ACID SALT OF 3-HYDROXYISOVALERIC ACID AND PRODUCTION METHOD THEREOF
申请人:KYOWA HAKKO BIO CO., LTD.
公开号:US20190210958A1
公开(公告)日:2019-07-11
An object of the present invention is to provide a crystal of an amino acid salt of HMB which is easy to handle and has high solubility, and to provide a method for producing the same. According to the present invention, the crystal of an amino acid salt of HMB can be precipitated by dissolving an amorphous amino acid salt of HMB in a solvent containing alcohol and stirring or allowing the solvent to left stand. In addition, the crystal of an amino acid salt of HMB can be precipitated by concentrating an aqueous HMB solution of an amino acid salt which has a pH of 2.5 to 11.0.
本发明的目的是提供一种易于处理且具有高溶解度的HMB氨基酸盐晶体,并提供其生产方法。根据本发明,通过将HMB氨基酸盐的非晶态晶体溶解在含有醇的溶剂中并搅拌或让溶剂静置,可以沉淀出HMB氨基酸盐的晶体。此外,通过浓缩具有pH值为2.5至11.0的氨基酸盐的水溶性HMB溶液,也可以沉淀出HMB氨基酸盐的晶体。