Provided are ribulose-phosphate 3-epimerase, a microorganism and a composition, each including the ribulose-phosphate 3-epimerase, and a method of producing psicose-6-phosphate or psicose using the same.

Provided are ribulose-phosphate 3-epimerase, a microorganism and a composition, each including the ribulose-phosphate 3-epimerase, and a method of producing psicose-6-phosphate or psicose using the same.

The present disclosure relates to a composition for tagatose production and a method for preparing tagatose using the same.

The present disclosure relates to a composition for tagatose production and a method for preparing tagatose using the same.

A process for producing a solid material comprising isomaltulose crystals and trehalulose, including: A) contacting an enzyme complex with a sucrose-containing solution; B) isomerizing at least a part of the sucrose to isomaltulose and trehalulose; C) separating off the enzyme complex to obatin a solution including isomaltulose, trehalulose and water; D) partially removing the water by evaporation to obtain a concentrated solution; E) bringing the concentrated solution to a temperature range of 30° C. to 63° C. and subsequently inducing isomaltulose crystallization in this temperature range followed by cooling, thereby obtaining a solid material including isomaltulose crystals and trehalulose.

A process for producing a solid material comprising isomaltulose crystals and trehalulose, including: A) contacting an enzyme complex with a sucrose-containing solution; B) isomerizing at least a part of the sucrose to isomaltulose and trehalulose; C) separating off the enzyme complex to obatin a solution including isomaltulose, trehalulose and water; D) partially removing the water by evaporation to obtain a concentrated solution; E) bringing the concentrated solution to a temperature range of 30° C. to 63° C. and subsequently inducing isomaltulose crystallization in this temperature range followed by cooling, thereby obtaining a solid material including isomaltulose crystals and trehalulose.

The present disclosure relates to D-xylulose 4-epimerase, mutants thereof, and uses thereof. Specifically, the present disclosure relates to a polypeptide having D-xylulose 4-epimerase activity, a method for preparing said polypeptide, and use of said polypeptide in the preparation of L-pentose using D-xylose or D-xylulose as a raw material. Compared with the traditional preparation method in the prior art, the new method for preparing L-pentose discovered in the present disclosure has simpler production process and reduces the cost of producing L-pentose.

The present disclosure relates to D-xylulose 4-epimerase, mutants thereof, and uses thereof. Specifically, the present disclosure relates to a polypeptide having D-xylulose 4-epimerase activity, a method for preparing said polypeptide, and use of said polypeptide in the preparation of L-pentose using D-xylose or D-xylulose as a raw material. Compared with the traditional preparation method in the prior art, the new method for preparing L-pentose discovered in the present disclosure has simpler production process and reduces the cost of producing L-pentose.

The present disclosure relates to cell immobilized beads and a method for preparing the same and, more specifically, to cell-immobilized beads wherein the conversion activity of cells contained in the immobilized beads is excellent and wherein the conversion activity is maintained even during distribution and storage processes, a method for preparing the cell-immobilized beads, and a use of the conversion activity of the beads.

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.