PROCESS FOR THE CO-PRODUCTION OF CHITIN, ITS DERIVATIVES AND POLYMERS CONTAINING GLUCOSE, MANNOSE AND/OR GALACTOSE, BY THE FERMENTATION OF THE YEAST PICHIA PASTORIS DSMZ 70877

PROCESS FOR THE CO-PRODUCTION OF CHITIN, ITS DERIVATIVES AND POLYMERS CONTAINING GLUCOSE, MANNOSE AND/OR GALACTOSE, BY THE FERMENTATION OF THE YEAST PICHIA PASTORIS DSMZ 70877

This invention concerns a process for the co-production of glucosamine polymers (chitin, chitosan or any of its derivatives) and polymers containing glucose, mannose and/or galactose, by the high cell density fermentation of the yeast Pichia pastoris in a bioreactor under aerobic conditions, prefera...

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Bibliographische Detailangaben
Hauptverfasser: FREITAS OLIVEIRA, Rui Manuel, ANDRADE DE FREITAS, Maria Filomena, FERREIRA CHAGAS, Bárbara, CARVALHO FERNANDES DE MIRANDA REIS, Maria, PIO BARBOSA PEREIRA DA CUNHA, António Eduardo, BRAGA DA CRUZ, Ana Luísa, VAZÃO MANO CLEMENTE, João José
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BEER
BIOCHEMISTRY
CHEMISTRY
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
SPIRITS
VINEGAR
WINE
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Beschreibung
Zusammenfassung:This invention concerns a process for the co-production of glucosamine polymers (chitin, chitosan or any of its derivatives) and polymers containing glucose, mannose and/or galactose, by the high cell density fermentation of the yeast Pichia pastoris in a bioreactor under aerobic conditions, preferably using glycerol byproduct from the biodiesel industry as carbon source. Pure glycerol, pure methanol, glycerol-rich or methanol rich mixtures may also be used as carbon sources. The present invention also concerns P. pastoris fermentation process duly optimized for attaining high cell densities and high cell wall chitin content, as well as polymers containing glucose, mannose and/or galactose.