Patent ID: 8227217

Claim:
A method for combined production of 1,3-propanediol (PDO), 2,3-butanediol (BDO), and Polyhydroxypropionic acid (PHP) by fermentation, comprising culturing a genetically engineered micro-organism characterized in that: compared with corresponding wild-type starting micro-organism, the D-lactate dehydrogenase gene in the genetically engineered micro-organism is deleted or functionally inactivated, and the genetically engineered micro-organism comprises a heterogenous polynucleotide encoding the Coenzyme A-dependent Aldehyde dehydrogenase and a heterogenous polynucleotide encoding the Polyhydroxyalkanoate synthase, under conditions suitable for the genetically engineered micro-organism to grow and produce PDO, BDO and PHP, and isolating the produced PDO, BDO and PHP.