Fiber-rich maltooligosaccharides having low glucose bioavailability, method of manufacture thereof and use thereof in human food and animal feed

A method for manufacturing maltooligosaccharides having a content of α-1,4-bonds of between 65% and 83% of the total number of 1,4-glycosidic bonds a ratio of the total number of 1,4-glycosidic bonds to the total number of 1,6-glycosidic bonds of greater than 1 and lower to 2.50 and a content of α-1,6-bonds of between 35% and 58% of the total number of 1,6-glycosidic bonds, comprising the steps consisting of:

• a) providing an aqueous solution of at least two carbohydrates, characterized in that 40% to 95% of the dry weight of said solution consists of maltose,
• b) placing the aqueous solution resulting from step a) in contact with at least one polyol and at least one inorganic or organic acid,
• c) optionally increasing the solids content of the aqueous solution resulting from step b) up to at least 75% by weight of the total weight thereof, and
• d) carrying out a heat treatment on the aqueous solution resulting from step b) or optionally from step c), at a temperature of between 140° C. and 300° C. under a negative pressure of between 50 and 500 mbar.