Cj Cheiljedang Corporation

Sang-hoon Song

Kang-Pyo Lee

Seong-bo Kim

Jung-Hoon Kim

Seung-won Park

Young-Mi Lee

Dong-Hoon Lee

Seung-Won Park

Hye-Jin Choi

Taek-beom Kim

Seung-bae Ji

Joo-hang Lee

Deok-kun Oh

Hye-jung Kim

Kang-deug Lee

Hye-won Kim

Byoung-chul Lim

The present invention relates to a thermophilic arabinose isomerase and a method of manufacturing tagatose using the same, and more precisely, a gene encoding arabinose isomerase originating from the thermophileDSM 5068, a recombinant expression vector containing the gene, a method of preparing a food grade thermophilic arabinose isomerase from the recombinant GRAS (Generally Recognized As Safe) strain transformed with the said expression vector, and a method of preparing tagatose from galactose using the said enzyme.

[object Object]

The present invention relates to a manufacturing method of tagatose using galactose isomerization of high yield, more particularly a method to enhance conversion rate of isomerization by adding borate which binds specifically to tagatose and a manufacturing method of tagatose using the same.

Manufacturing method of tagatose using galactose isomerization of high yield

Disclosed is a method of producing xylitol using a hydrolysate containing xylose and arabinose prepared from byproducts of tropical fruit biomass and more precisely, a method of producing xylitol which includes the steps of producing xylose and arabinose by the pretreatment of tropical fruit biomass byproducts including coconut shell, palm shell and oil palm empty fruit bunch (OPEFB) via acid (0.2-5%) hydrolysis and an electrodialysis and an ionic purification; and producing xylitol with high yield based on repeated batch fermentation using a hydrolysate containing xylose and arabinose as a carbon source. In addition, the present invention relates to an active carbon produced by carbonization and activation of a hydrolysate remainder of a tropical fruit shell, the byproduct of xylose and arabinose production, at a certain temperature and a preparation method of the same.

Method of producing xylitol using hydrolysate containing xylose and arabinose prepared from byproduct of tropical fruit biomass

The present invention relates to a recombinant GRAS (Generally Recognized As Safe) strains expressing thermophilic arabinose isomerase as an active form and method of food grade tagatose by using the same, and more precisely, a gene encoding arabinose isomerase originating from the thermophilicDSM22 and, a recombinant expression vector containing the gene, a recombinant GRAS strains expressing the thermophilic arabinose isomerase as an active form by transformed with the expression vector, and a method of preparing food grade tagatose from galactose by using the same.

Recombinant GRAS strains expressing thermophilic arabinose isomerase as an active form and method of preparing food grade tagatose by using the same

Growing community of inventors

Incheon, South Korea

Sang-hoon Song