Cj Cheiljedang Corporation

Samyang Corporation

Deok-Kun Oh

Jung-Hoon Kim

Seong-bo Kim

Seung-Won Park

Seung-won Park

Taek-bum Kim

Soon-chul Kim

Hye-jung Kim

Yong-Joo Lee

Seon-Hwa Lee

Sang-Hoon Song

Seung-Hye Hong

This disclosure relates to aldolase, an aldolase mutant, and a method and a composition for producing tagatose by using the same. The feature of the disclosure is environment-friendly due to the use of an enzyme acquired from microorganisms, requires only a simple process of enzyme immobilization, uses a low-cost substrate in a substrate compared with a conventional method for producing tagatose and has a remarkably high yield, thereby greatly reducing production costs and maximizing production effects.

Aldolase, aldolase mutant, and method and composition for producing tagatose by using same

Provided is a method of producing D-psicose using a D-psicose epimerase derived from. Provided are a protein having an amino acid sequence of SEQ ID NO:1 and having a psicose 3-epimerase activity, a gene encoding the protein, a recombinant expression vector containing the gene, and a method of producing D-psicose by reacting the protein produced on a mass scale with D-fructose. The method of producing D-psicose is an environmentally friendly method using a new enzyme, in which an inexpensive substrate is used, and the activity of the enzyme can be retained for a prolonged time period. Thus, the method can be efficiently used for the mass production of D-psicose.

D-psicose production method by D-psicose epimerase

Provided is a process for continuously producing xylitol in high yield and productivity using a vacuum microfiltration bioreactor containing a fermentation medium for a strain of the genus, which includes: 5 300 g/l of xylose, 1 10 g/l of urea, 1 10 g/l of potassium diphosphate, 0.01 1 g/l of magnesium sulfate, 0.1-10 mg/l of MnSO.4HO, 0.1 10 mg/l of CoCl.6HO, 0.1 10 mg/l of NaMoO.2HO, 0.1 10 mg/l of ZnSO.7HO, 0.1 10 mg/l of AlCl.6HO, 0.1 10 mg/l of CuCl.2HO, 0.01-5 mg/l of HBO, 1-100 mg/l of FeSO7HO, 0.1-10 mg/l of ascorbic acid, 1-100 mg/l of biotin, 1-100 mg of choline, 1-200 mg/l of folic acid, 1-100 mg/l of inositol, 1-100 mg/l of nicotinic acid, 0.1-10 mg/l of p-aminobezoic acid, 1-100 mg/l of pantothenic acid, 0.1-10 mg/l of pyridoxine, 10-1,000 mg/l of riboflavin, and 1-100 mg/l of thiamine.

Method for preparing xylitol with high yield using recycling microorganism

Growing community of inventors

Gwacheon-si, South Korea

Deok-Kun Oh