Process for production of a solid material containing isomaltulose crystals and trehalulose

A process for producing a solid material comprising isomaltulose crystals and trehalulose, the process comprising:

• A) contacting an enzyme complex with a sucrose-comprising solution, wherein the enzyme complex is capable of catalyzing a reaction of converting sucrose to isomaltulose and trehalulose;
• B) isomerizing at least a part of the sucrose in the sucrose-comprising solution to isomaltulose and trehalulose;
• C) separating off the enzyme complex, thereby obtaining a solution comprising isomaltulose, trehalulose and water;
• D) partially removing the water from the solution by evaporation at a first temperature, thereby obtaining a concentrated solution with a solid content of 86 wt % to 92 wt %, based on a total weight of the concentrated solution;
• and
• E) bringing the concentrated solution to a second temperature, which is within a temperature range of 55° C. to 60° C. and is different from the first temperature, and subsequently inducing isomaltulose crystallization in the temperature range of 55° C. to 60° C. followed by cooling, thereby obtaining the solid material comprising isomaltulose crystals and trehalulose.