A method for preparing high-purity fructo-oligosaccharides using molecular sieve-simulated moving bed

A technology for simulating moving bed and fructooligosaccharides, applied in the preparation of oligosaccharides and sugar derivatives, chemical instruments and methods, etc., to achieve the effects of preventing hydrolysis, strong adsorption capacity and low cost

Active Publication Date: 2019-04-23
广西轻工业科学技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at the problems existing in the existing preparation process of fructo-oligosaccharide, and provides a method for preparing high-purity fructo-oligosaccharide by using molecular sieve-simulated moving bed

Method used

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  • A method for preparing high-purity fructo-oligosaccharides using molecular sieve-simulated moving bed
  • A method for preparing high-purity fructo-oligosaccharides using molecular sieve-simulated moving bed
  • A method for preparing high-purity fructo-oligosaccharides using molecular sieve-simulated moving bed

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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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Abstract

The invention discloses a method for preparing high-purity fructo-oligosaccharide by utilizing a molecular sieve-simulated moving bed. The method comprises the following steps: taking common fructo-oligosaccharide solution as a raw material and diluting with pure water; adding a compound adsorbent composed of activated carbon and polyaluminium sulfate into the diluted liquid fructo-oligosaccharide; stirring, filtering and taking filtrate; separating and purifying the filtrate through the simulated moving bed, thereby acquiring a high-purity fructo-oligosaccharide solution; and reducing pressure and concentrating the fructo-oligosaccharide solution under ultra-low temperature vacuum, thereby acquiring the fructo-oligosaccharide. According to the method provided by the invention, the continuous efficient separation of fructo-oligosaccharide and monosaccharide and disaccharide can be realized, the high-purity fructo-oligosaccharide can be acquired, the micro-functional sweetening agent is generated by recycling residual components and the comprehensive utilization of the sugaring resource is realized. The method has the advantages of simple operation, high production efficiency, controllable technical index of production process, no pollution, environmental protection and low cost. The industrial production is easily realized.

Description

technical field [0001] The invention relates to the technical field of functional sugar preparation, in particular to a method for preparing high-purity fructo-oligosaccharides by using a molecular sieve-simulated moving bed. Background technique [0002] Fructose oligosaccharides (fructooligosaccharides, FOS), also known as fructooligosaccharides, oligofructose or sucrose trisaccharide oligosaccharides, are composed of sucrose and 1~3 fructosyl groups and sucrose through β-1,2 glycosidic bonds. Kestose (GF 2 ), kestose (GF 3 ) and Cane Fruit Wutang (GF 4 ) and other carbohydrates. Fructose-oligosaccharide is an internationally recognized prebiotic. In recent years, fructo-oligosaccharide products have become popular in Japan, Europe, America and other health care product markets. The proliferation of antibiotics in today's society has caused many negative effects, and fructooligosaccharides have the function of improving immunity and can reduce the use of antibiotics. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07H3/06C07H1/06A23L27/30
CPCA23V2002/00C07H1/06C07H3/06A23V2250/60
Inventor 曹敏米运宏雷光鸿罗左青王元春黄忠华蓝伯广梁智韦武林覃红梅韦艳君姜毅
Owner 广西轻工业科学技术研究院有限公司
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