(19)

(11)

EP 0 154 647 A1

(12)

(43) Date of publication: 18.09.1985 Bulletin 1985/38 (21) Application number: 84903316.0 (22) Date of filing: 17.08.1984

(51) International Patent Classification (IPC):  A23C 21/ 02( . ) C12N 1/ 16( . ) C12M 1/ 12( . ) (86) International application number: PCT/US1984/001345 (87) International publication number: WO 1985/001064 (14.03.1985 Gazette 1985/07)

(84) Designated Contracting States: AT BE CH DE FR GB LI NL SE (30) Priority: 25.08.1983 US 19830526437 (71) Applicants: CHERYAN, Munir Urbana, IL 61801 (US) MEHAIA, Mohamed Abd El-Fattach Savoy, IL 61874 (US)	(72) Inventors: CHERYAN, Munir Urbana, IL 61801 (US) MEHAIA, Mohamed Abd El-Fattach Savoy, IL 61874 (US) (74) Representative: Allam, Peter Clerk  LLOYD WISE, TREGEAR & CO. Norman House 105-109 Strand London WC2R 0AE London WC2R 0AE (GB)