Abstract: 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.

Abstract: Disclosed is a novel marine microorganism which can metabolize 3,6-anhydro-L-galactose and use of the same. The novel marine microorganism belongs to Vibrio sp. which utilizes 3,6-anhydro-L-galactose (3,6-L-AHG) as a single carbon source to convert 3,6-L-AHG to ribose and 3,6-anhydrogalactonic acid.

Abstract: Disclosed is an image forming apparatus. The image forming apparatus includes a body frame, a support roller placed at one side of a movement path of a printing medium, a transfer roller assembly placed at the other side of the movement path of the printing medium at a position adjacent to the support roller, and a door to open or close the body frame so as to expose the movement path of the printing medium. The transfer roller assembly has a rotating axis kept at a fixed position of the body frame, and is moved away from the support roller in linkage with an opening operation of the door.