Hydrogenated oligosaccharide and preparation method thereof
An oligosaccharide and hydrogenation technology, which is applied in the preparation of sugar derivatives, chemical instruments and methods, and the preparation of hydroxyl compounds, etc., can solve the problems that sugar alcohols cannot meet the market demand, sugar alcohols have small molecular weight, high sweetness, etc., and achieve the taste Mild, low sweetness, acid resistance improvement effect
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Embodiment 1
[0035] A method for preparing hydrogenated oligosaccharides, comprising the steps of:
[0036] (1) Use corn starch as raw material, adjust the starch milk to 17 degrees Baume, add high-temperature α-liquefying enzyme at a ratio of 10 U per gram of corn starch dry basis raw material, and use the second injection to liquefy, and the first injection liquefaction temperature is 100°C , the liquefaction temperature of the second injection is 140°C, and then add a medium-temperature amylase at a ratio of 20 U per gram of corn starch dry basis raw material, and saccharify for 5 hours at 50°C to obtain oligosaccharides;
[0037] (2) the oligosaccharide that step (1) makes adds the mass percent content of two-stage reverse osmosis water-adjusted syrup to be 60%, is warming up to 60 ℃, uses calcium-type cationic resin as separating resin, uses two-stage reverse osmosis water As an eluent, the volume ratio of material to water is 1:1.25 (volume ratio of the same unit), separated by colum...
Embodiment 2
[0044] A method for preparing hydrogenated oligosaccharides, comprising the steps of:
[0045] (1) Using corn starch as raw material, adjust starch milk 17 Baume, add high-temperature α liquefaction enzyme at a ratio of 15 U per gram of corn starch dry basis raw material, and use the second injection to liquefy. The first injection liquefaction temperature is 110 ° C, the second injection The liquefaction temperature of the second injection is 130°C, and then add a medium-temperature amylase at a ratio of 18U per gram of corn starch dry basis raw material, and saccharify at 60°C for 6 hours to obtain oligosaccharides;
[0046](2) the oligosaccharide that step (1) makes adds the mass percent content of two-stage reverse osmosis water-adjusted syrup to be 55%, is warming up to 65 ℃, uses calcium-type cationic resin as separating resin, uses two-stage reverse osmosis water As an eluent, the volume ratio of material to water is 1:1.25, separated by column to obtain purified oligos...
Embodiment 3
[0053] A method for preparing hydrogenated oligosaccharides, comprising the steps of:
[0054] (1) Use corn starch as raw material, adjust starch milk 16 Baume, add high-temperature α-liquefying enzyme at a ratio of 20 U per gram of corn starch dry basis raw material, use the second injection to liquefy, and the first injection liquefaction temperature is 105 ° C, The liquefaction temperature of the second injection is 130°C, and then a medium-temperature amylase is added at a ratio of 24U per gram of corn starch dry basis raw material, and saccharified at 80°C for 8 hours to obtain oligosaccharides;
[0055] (2) the oligosaccharide that step (1) is made adds the mass percentage content of the two-stage reverse osmosis water-adjusted syrup to be 65%, is warming up to 55 ℃, uses calcium-type cationic resin as separating resin, uses two-stage reverse osmosis water As an eluent, the volume ratio of material to water is 1:1.25, separated by column to obtain purified oligosaccharid...
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