(19)
(11) EP 1 097 238 A1

(12)

(43) Date of publication:
09.05.2001 Bulletin 2001/19

(21) Application number: 99939986.8

(22) Date of filing: 01.07.1999
(51) International Patent Classification (IPC)7C12P 17/18, A61K 31/43, C12N 1/20, C07D 503/00
(86) International application number:
PCT/EP9904/702
(87) International publication number:
WO 0001/840 (13.01.2000 Gazette 2000/02)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 03.07.1998 EP 98202264

(71) Applicant: DSM N.V.
6411 TE Heerlen (NL)

(72) Inventors:
  • DE LAAT, Wilhelmus, Theodorus, Antonius, Maria
    NL-4817 KW Breda (NL)
  • KRABBEN, Preben
    NL-2624 KL Delft (NL)

(74) Representative: Matulewicz, Emil Rudolf Antonius et al
DSM- Patents & Trademarks (994-0760),P.O. Box 1
2600 MA Delft
2600 MA Delft (NL)

   


(54) FERMENTATION PROCESS TO PRODUCE CLAVULANIC ACID AT A LOW CONCENTRATION OF FREE AMINO ACIDS