Method for preparing high-purity fructo-oligosaccharide by utilizing molecular sieve-simulated moving bed
A technology of simulating moving bed and fructooligosaccharides, which is applied in the preparation of oligosaccharides and sugar derivatives, chemical instruments and methods, etc., to achieve the effects of high production efficiency, strong adsorption capacity, continuous and efficient separation
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Embodiment 1
[0029] A method utilizing molecular sieve-simulated moving bed to prepare high-purity fructo-oligosaccharides, comprising the following steps:
[0030] (1) Dilution: Take the FOS60 type fructooligosaccharide mother liquor obtained after the fructosyltransferase acts on the sucrose solution, in which the total content of monosaccharide and disaccharide is 40.64%, the total content of fructooligosaccharide is 59.36%, and the hammer is 70° Ordinary grade fructooligosaccharide solution (FOS50) of Bx is used as the raw material, and the raw material is diluted with pure water to a Brix of 50°Bx to obtain dilute sugar solution;
[0031] (2) Decolorization and impurity removal: add 1.5% composite adsorbent of ordinary grade fructo-oligosaccharide liquid raw material weight to the dilute sugar solution, heat to 40°C, stir at a speed of 70r / min for 30min, filter while hot, and take the filtrate; The composite adsorbent is made up of activated carbon and polyaluminum sulfate with a weig...
Embodiment 2
[0044] A method utilizing molecular sieve-simulated moving bed to prepare high-purity fructo-oligosaccharides, comprising the following steps:
[0045] (1) Dilution: Take the FOS55 type fructooligosaccharide mother liquor obtained after the fructosyltransferase acts on the sucrose solution, in which the total content of monosaccharide and disaccharide is 44.78%, the total content of fructooligosaccharide is 55.22%, and the hammer is 75° The ordinary grade fructo-oligosaccharide liquid of Bx is raw material, and raw material is diluted to brix with pure water and is 45 ° of Bx, obtains dilute sugar liquid;
[0046] (2) Decolorization and impurity removal: Add 2.5% composite adsorbent by weight of ordinary grade fructooligosaccharide liquid raw material to the dilute sugar solution, heat to 45°C, stir at a speed of 80r / min for 25min, filter while hot, and take the filtrate; The composite adsorbent is made up of activated carbon and polyaluminum sulfate with a weight ratio of 1:1...
Embodiment 3
[0051] A method utilizing molecular sieve-simulated moving bed to prepare high-purity fructo-oligosaccharides, comprising the following steps:
[0052] (1) Dilution: Take the FOS60 fructooligosaccharide mother liquor obtained after the fructosyltransferase acts on the sucrose solution, in which the total content of monosaccharide and disaccharide is 41.94%, the total content of fructooligosaccharide is 59.06%, and the Brix is 78°Bx The common grade fructo-oligosaccharide liquid is raw material, and raw material is diluted to brix with pure water and is 50 ° of Bx, obtains dilute sugar liquid;
[0053] (2) Decolorization and impurity removal: Add 3.0% of the weight of ordinary grade fructooligosaccharide liquid composite adsorbent to the dilute sugar solution, heat to 45°C, stir at a speed of 75r / min for 20min, filter while it is hot, and take the filtrate; The composite adsorbent is made up of activated carbon and polyaluminum sulfate in a weight ratio of 3:1;
[0054] (3) ...
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