This invention provides an isomaltooligosaccharide (IMO) composite and the method to manufacture. According to this invention, isomaltooligosaccharide with a high level of sweetness can be provided without an additional process of adding fructose.

The present application relates to a fructose-4-epimerase variant exhibiting tagatose conversion activity and a method for preparing tagatose using the same.

The present application relates to a fructose-4-epimerase variant exhibiting tagatose conversion activity and a method for preparing tagatose using the same.

The present disclosure relates to novel fructose-C4-epimerase and a method of preparing tagatose using the same.

The present disclosure relates to novel fructose-C4-epimerase and a method of preparing tagatose using the same.

The present disclosure relates to an epimerase protein of fructose-6-phosphate, nucleic acid molecule encoding the epimerase protein, a recombinant vector and a transgenic microorganism which comprise the nucleic acid molecule, and a composition for producing allulose by using them.

The present disclosure relates to an epimerase protein of fructose-6-phosphate, nucleic acid molecule encoding the epimerase protein, a recombinant vector and a transgenic microorganism which comprise the nucleic acid molecule, and a composition for producing allulose by using them.

The present invention provides: a novel allulose epimerase variant in which an amino acid residue present at a specific position of an amino acid sequence of a wild-type D-allulose 3-epimerase derived from Flavonifractor plautii is substituted with another amino acid residue; and various uses of the novel allulose epimerase variant. The novel allulose epimerase variant according to the present invention has a higher conversion rate of fructose to allulose compared to that of the wild-type D-allulose 3-epimerase derived from Flavonifractor plautii, and has excellent thermal stability especially under high temperature conditions of 60° C. or higher, and thus can prevent contamination during an industrial-scale enzymatic conversion reaction for the mass production of allulose, shorten production time, and reduce production costs.

The present invention provides: a novel allulose epimerase variant in which an amino acid residue present at a specific position of an amino acid sequence of a wild-type D-allulose 3-epimerase derived from Flavonifractor plautii is substituted with another amino acid residue; and various uses of the novel allulose epimerase variant. The novel allulose epimerase variant according to the present invention has a higher conversion rate of fructose to allulose compared to that of the wild-type D-allulose 3-epimerase derived from Flavonifractor plautii, and has excellent thermal stability especially under high temperature conditions of 60° C. or higher, and thus can prevent contamination during an industrial-scale enzymatic conversion reaction for the mass production of allulose, shorten production time, and reduce production costs.

The present disclosure relates to novel D-psicose 3-epimerase and a method for producing psicose using the same.