Title:
リボフラビンの精製方法
Document Type and Number:
Japanese Patent JP2006528150
Kind Code:
A
Abstract:
The invention relates to a process for the purification of riboflavin comprising the steps of (a) precipitating a first crystalline form of riboflavin, (b) isolating the first crystalline form of riboflavin, (c) transforming the first crystalline form of riboflavin into a second crystalline form of riboflavin under conditions that decompose diluted DNA, and (d) isolating the second crystalline form of riboflavin, provided that at ambient temperature the first crystalline form of riboflavin is thermodynamically less stable than the second crystalline form of riboflavin.
More Like This:
| JPS6121096 | METHOD FOR OBTAINING RIBOFLAVIN |
Inventors:
Groll, Arnold
Application Number:
JP2006520776A
Publication Date:
December 14, 2006
Filing Date:
July 20, 2004
Export Citation:
Assignee:
DSM IP ASSETS B.V.
International Classes:
C07D475/14; B01D9/02
Domestic Patent References:
| JPH08256786A | 1996-10-08 | |||
| JPH06192261A | 1994-07-12 | |||
| JPH0665244A | 1994-03-08 | |||
| JPH01102079A | 1989-04-19 | |||
| JPS6398399A | 1988-04-28 | |||
| JPS6121096A | 1986-01-29 | |||
| JPS59122489A | 1984-07-14 | |||
| JP2000128880A | 2000-05-09 | |||
| JPH04261176A | 1992-09-17 |
Foreign References:
| US2324800A | 1943-07-20 | |||
| US2603633A | 1952-07-15 | |||
| EP0137226A2 | 1985-04-17 | |||
| US2797215A | 1957-06-25 |
Attorney, Agent or Firm:
Hajime Tsukuni
Fumio Shinoda
Fumio Shinoda