Korea University Research and Business Foundation

Gwangju Institute of Science and Technology

In-Geol Choi

Kyoung Heon Kim

Eun-Ju Yun

Hee Taek Kim

Jung Hyun Kim

Hee Jin Lee

In Seop Chang

Sora Yu

Sae Young Lee

Eun Ju Yun

Kyung-mun Cho

Jiyeong Jeong

In Jung Kim

Saeyoung Lee

Shinyoung Park

Chan Hyoung Lee

Ah-Reum Lee

Byeonghyeok Park

The present invention relates to a transformed strain having ethanol production potential, constructed by introducing a foreign gene for ethanol production into a non-ethanol producing acetogenand a method for producing ethanol, using the strain. According to the present invention,which is a conventional acetogen lacking ethanol production potential is used to produce ethanol, which is a high value-added product, as a single product from carbon monoxide contained in waste gas.

Method for converting non-ethanol producing, acetogenic strain to ethanol-producing strain and method for producing ethanol from same ethanol-producing strain by using carbon monoxide

The present invention relates to a novel method for purifying 3,6-anhydro-L-galactose by using microorganisms and provides an effect of improving the production yield of 3,6-anhydro-L-galactose by using microorganisms during purification after enzymatic hydrolysis of agarose or agar.

Method for purifying and obtaining 3,6-anhydro-L-galactose using microorganisms

The present invention relates to a heat-resistant agarase and a monosaccharide production method using same. More particularly, in the present invention, a heat-resistant agarase may be used to produce galactose and 3,6-anhydro-L-galactose at high yield by efficiently breaking down agarose or agar without a chemical pretreatment, a neutralization process, or an agarotriose hydrolase treatment process.

Heat-resistant agarase and monosaccharide production method using same

The present invention relates to a use of 3,6-anhydro-L-galactose for preventing dental caries. More specifically, 3,6-anhydro-L-galactose inhibits the growth of oral microorganisms and exhibits anti-caries activity to inhibit the production of acids caused by the consumption of a carbon source by the oral microorganisms. Thus, 3,6-anhydro-L-galactose can be used in pharmaceuticals, food products, oral hygiene preparations, etc. for preventing, ameliorating or treating oral diseases caused by oral microorganisms, such as dental caries, gingivitis, periodontitis, oral mucosal ulcer, halitosis or xerostomia.

Use of 3,6-anhydro-L-galactose for preventing dental caries

The present invention relates to agarooligosaccharide hydrolase and a method for producing 3,6-anhydro-L-galactose and galactose from agarose by using the same. More specifically, the production yield of 3,6-anhydro-L-galactose and galactose from agarose, that is, the saccharification yield, is improved by using &#x3b2;-agarooligosaccharide hydrolase having an agarotriose hydrolytic activity.

Agarooligosaccharide hydrolase and method for producing 3,6-anhydro-L-galactose and galactose from agarose by using same

The present invention relates to a recombinant microorganism metabolizing 3,6-anhydro-L-galactose and a use thereof, and, more particularly, can produce ethanol from a recombinant microorganism expressing an enzyme group involved in a metabolic pathway of 3,6-AHG.

Recombinant microorganism metabolizing 3,6-anhydride-L-galactose and a use thereof

The present invention provides-derived recombinant cellulase and a use thereof. The recombinant cellulase according to the present invention has a high stability at a high temperature and an optimized activity at a neutral pH, and therefore has a high availability in a process. Also, since the cellulase according to the present invention has an exoglucanase activity as well as an endoglucanase activity, a monosaccharide can be produced during decomposition of cellulose and an additional treatment required in a fermentation process is not needed, and therefore a cost may be reduced. Such an enzyme activity is advantageous to a fermentation or thermal treatment condition for producing a biofuel, and therefore industrial profits may be achieved.

Recombinant cellulase and use thereof

The present invention relates to a novel 3,6-anhydro-L-galactose dehydrogenase and to a novel compound produced therefrom. More specifically, provided is a 3,6-anhydro-L-galactose dehydrogenase which can produce 3,6-anhydrogalactonic acid of a novel type by metabolizing 3,6-anhydro-L-galactose.

Growing community of inventors

Seoul, South Korea

In-Geol Choi