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Method for preparing isomalto-oligosaccharide from glucose BD liquor

A technology of isomaltooligosaccharide and glucose mother liquor, which is applied in fermentation and other directions, can solve the problems of resource waste and low resource utilization rate, and achieve the effects of saving investment, good economic and social benefits, and improving resource utilization rate

Active Publication Date: 2015-04-29
河南飞天生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the BD liquid separated by chromatography is discharged again as the waste of chromatography separation, and some resources are still wasted, resulting in low utilization rate of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] In this example, the method for preparing isomaltose oligosaccharides using glucose BD liquid includes the following steps: (1) Preparation of glucose BD liquid: pump the glucose mother liquor discharged after crystallized glucose separation into the chromatographic separation system, and the glucose in the chromatographic separation system The volume ratio of mother liquor to deionized water is 1:0.6, and the mass percent concentration of glucose mother liquor is 50%. Diameter) * 1800 mm (effective height), the column temperature of the chromatographic separation column is 60°C, the feeding pressure of the glucose mother liquor is 0.28 MPa, and the pressure of the mobile phase is 0.28 MPa, so that the glucose mother liquor can be separated continuously and evenly, and separated by chromatography Glucose AD liquid and glucose BD liquid are obtained, and the prepared glucose AD liquid is returned to the glucose production system, and the glucose BD liquid is used as a raw...

Embodiment 2

[0014] In this example, the method for preparing isomaltose oligosaccharides using glucose BD liquid includes the following steps: (1) Preparation of glucose BD liquid: pump the glucose mother liquor discharged after crystallized glucose separation into the chromatographic separation system, and the glucose in the chromatographic separation system The volume ratio of mother liquor to deionized water is 1:07, and the mass percentage concentration of glucose mother liquor is 50.8%. Diameter)*1800 mm (effective height), the column temperature of the chromatographic separation column is 60-65°C, the feeding pressure of the glucose mother liquor is 0.28 MPa, and the pressure of the mobile phase is 0.28 MPa, so that the glucose mother liquor can be separated continuously and evenly. Glucose AD liquid and glucose BD liquid are prepared by chromatographic separation, and the prepared glucose AD liquid is returned to the glucose production system, and the glucose BD liquid is used as a ...

Embodiment 3

[0016]In this example, the method for preparing isomaltose oligosaccharides using glucose BD liquid includes the following steps: (1) Preparation of glucose BD liquid: pump the glucose mother liquor discharged after crystallized glucose separation into the chromatographic separation system, and the glucose in the chromatographic separation system The volume ratio of mother liquor to deionized water is 1:0.8, and the mass percent concentration of glucose mother liquor is 52%. diameter)*1800 mm (effective height), the column temperature of the chromatographic separation column is 65°C, the pressure of the glucose mother liquid feed is 0.28 MPa, and the pressure of the mobile phase is 0.28 MPa. By adjusting the process parameters in the chromatographic separation process, the glucose The mother liquor is continuously and uniformly separated, and the glucose AD liquid and the glucose BD liquid are obtained through chromatographic separation, and the prepared glucose AD liquid is re...

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Abstract

The invention discloses a method for preparing isomalto-oligosaccharide from glucose BD liquor. The method comprises the following steps: (1) glucose BD liquor preparation,(2) decolorization and filtration, (3) ion exchange, (4) glucoside conversion, (5) enzyme deactivation, (6) filtration, (7) decolorization, (8) ion exchange and (9) steaming: a discharged material after ion exchange in the step (8) is pumped into a five-effect falling-film evaporator for evaporation and concentration until the mass percent concentration of the material is 70-75% to prepare isomalto-oligosaccharide, wherein the discharge temperature ranges from 80 DEG C to 85 DEG C. Compared with the prior art, the method has the benefits that waste liquor (BD liquor) after chromatographic separation of glucose mother liquor in a crystal glucose production process is taken as a raw material, so that local materials are used, wastes are turned into wealth, and the glucose mother liquor in the crystal glucose production process is comprehensively utilized by 100%; the effects of no pollution and zero emission are achieved; the added value of a product is increased.

Description

technical field [0001] The invention belongs to the field of isomaltooligosaccharide production, and in particular relates to a method for preparing isomaltooligosaccharide by utilizing glucose BD liquid. Background technique [0002] During the crystallization process of the crystallized glucose production line, a part of the mother liquor that cannot be crystallized is separated by a centrifuge and discharged. The mother liquor discharged after the crystallized glucose is separated is analyzed by liquid chromatography. The data of the contents of each component are: DP1: 76.06%, DP2: 17.82%, DP3: 3.55%, DP4: 2.57%, because the glucose (DP1) content in the mother liquor is too low to constitute the conditions for glucose recrystallization, direct production of isomaltooligosaccharide, and the glucose content is too high, which increases the α- The consumption of glucosidase can't reach the products we need. [0003] In the actual production process, the mother liquid of gl...

Claims

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Application Information

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IPC IPC(8): C12P19/18
Inventor 李林海董得平陈金强赵桂强程汝群刘永亮
Owner 河南飞天生物科技股份有限公司
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