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Crystalline glucose producing process based on whole membrane method

A technology for crystallized glucose and its manufacturing method, which is applied in the field of glucose, can solve the problems of not forming a crystallized glucose production process, and achieve the effects of saving equipment investment and operating costs, reducing production costs, and simplifying the process flow

Active Publication Date: 2006-08-02
SANDA FILM SCI & TECH XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While ensuring product quality, the membrane separation process has unique advantages in realizing automatic control, clean production, and reducing production costs. However, the

Method used

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  • Crystalline glucose producing process based on whole membrane method

Examples

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Embodiment 1

[0034] 1. Starch liquefaction: Mix 500Kg of raw starch with 1100Kg of water to prepare a 31% starch emulsion, then sterilize at 110-115°C to prepare a liquid starch emulsion for glucose production. Add α-high temperature liquefied amylase to the liquid starch material emulsion, and then hydrolyze it into a liquefied starch solution with a DE value (glucose value) of 14% to 25% (containing polysaccharides, dextrins, etc.).

[0035] 2. Saccharification: Cool the liquefied starch solution prepared in step 1 with a DE value (glucose value) between 14% and 25% to 35-38°C, then add compound glucoamylase and perform enzymatic hydrolysis under this temperature condition The liquefied starch solution was further enzymatically hydrolyzed into glucose. After 48 hours of enzymatic hydrolysis, the DE value of the saccharification solution was measured (or continuously measured) every 0.5 h. After 52 hours of enzymatic hydrolysis, when the DE value reached 98%, the enzymatic hydrolysis proc...

Embodiment 2

[0042] 1. Starch liquefaction: Mix 750Kg of raw starch with 1400Kg of water to prepare a 35% starch emulsion, then sterilize at 115°C to prepare a liquid starch emulsion for glucose production. Add α-high temperature liquefied amylase to the liquid starch material emulsion, and undergo a high-pressure injection of a liquefaction injector and a continuous liquefaction reaction with enzyme twice to hydrolyze it into polysaccharides and pastes with a DE value (glucose value) of 14% to 25%. Jing and so on.

[0043] 2. Saccharification: Cool the liquefied starch solution prepared in step 1 with a DE value (glucose value) between 14% and 25% to 40-42°C, then add compound glucoamylase and perform enzymatic hydrolysis under this temperature condition The liquefied starch solution was further enzymatically hydrolyzed into glucose. After 48 hours of enzymatic hydrolysis, the DE value of the saccharification solution was measured (or continuously measured) every 0.5 h. After 49 hours of ...

Embodiment 3

[0050] 1. Starch liquefaction: Mix 500Kg of raw starch with 1100Kg of water to prepare a 31% starch emulsion, then sterilize at 115°C to prepare a liquid starch emulsion for glucose production. Add high-temperature liquefied amylase to the liquid starch emulsion, and undergo a high-pressure injection of a liquefaction injector and a second continuous liquefaction reaction with enzymes to hydrolyze it into polysaccharides and dextrins with a DE value (glucose value) of 14% to 25%. Wait.

[0051] 2. Saccharification: Cool the liquefied starch solution prepared in step 1 with a DE value (glucose value) between 14% and 25% to 42-45°C, then add compound glucoamylase and perform enzymatic hydrolysis under this temperature condition The liquefied starch solution was further enzymatically hydrolyzed into glucose. After 48 hours of enzymatic hydrolysis, the DE value of the saccharification solution was measured (or continuously measured) every 0.5 h. After 61 hours, when the measured D...

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Abstract

The present invention relates to glucose production, and is one whole membrane method of producing high purity crystalline glucose in relatively low cost. The method includes the following steps: liquefying starch to obtain starch liquid with DE value of 14-25 %; cooling and adding compound amylase to enzymolyze into glucose liquid; microfiltering to obtain dialysate and filter residue; drying the filter residue to produce feed; ultrafiltering the dialysate to obtain ultrafiltrate and ultrafiltered concentrated liquid; nanofiltering the ultrafiltrate to obtain nanofiltrate and nanofiltered concentrated liquid; concentrating the nanofiltrate to obtain concentrated glucose liquid; and spray drying to obtain crystalline glucose product. The nanofiltrate has DX value higher than 99.5 % and the method has no crystallization step and 10 % raised glucose yield. The method can recover starch and polysaccharide and is environment friendly.

Description

technical field [0001] The invention relates to glucose, in particular to a method for producing crystalline glucose based on a full-membrane method. Background technique [0002] Glucose (C6H12O6), also known as dextrose, is an important nutrient, an important energy source for living organisms, the most common monosaccharide and an important basic chemical medicine, and a component of many sugar compounds. It is the carbohydrate raw material of various organic alcohols and antibiotics. The production of glucose has gone through the development process of acid method, acid enzyme method and double enzyme method. The production of crystalline glucose in aqueous solution by static crystallization method began in 1921, the production of kinematic crystallization method began in 1924, and the industrial production of oral sugar and crystalline glucose for injection began after 1942. In 1940, the United States began to combine saccharification with acid enzymes to produce high...

Claims

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Application Information

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IPC IPC(8): C13K3/00
Inventor 蓝伟光方富林洪昱斌
Owner SANDA FILM SCI & TECH XIAMEN
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