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Method for removing 5-hydroxymethyl furfural (5-HMF) in high-fructose corn syrup (HFCS)

A technology of hydroxymethylfurfural and fructose syrup, which is applied in the field of removing 5-hydroxymethylfurfural in fructose syrup and food processing, can solve the problems of reducing the content of 5-hydroxymethylfurfural, and achieve low production cost, The effect of high light transmittance and simple process flow

Active Publication Date: 2012-01-25
SHANDONG SCENTS JIANYUAN BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country's current national standards have no requirements for 5-hydroxymethylfurfural. At present, most manufacturers mainly rely on controlling the temperature and pH value of the fructose syrup production process to reduce the production of 5-hydroxymethylfurfural in order to reduce the production of fructose syrup. 5-HMF content in fructose syrup without any process steps to remove 5-HMF

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Pretreatment of feed liquid: 5.0 tons of fructose syrup with a mass concentration of 25.5% after isomerization and chromatographic separation are stored in the feed tank. After testing, the content of 5-hydroxymethylfurfural in the fructose syrup is 100mg / kg. Pass the fructose syrup stored in the feed tank into the activated carbon decolorization tank for decolorization, control the temperature of the fructose syrup at 50-55°C during the decolorization process, and control the chroma of the fructose syrup discharged from the activated carbon decolorization tank at Below 30RBU; In this step, when the color of the fructose syrup discharged from the activated carbon decolorization tank is greater than 30RBU, it is necessary to replace the activated carbon in the decolorization tank or add activated carbon to the decolorization tank to make the color of the discharged fructose syrup The temperature drops below 30RBU.

[0026] (2) Adsorption: The fructose syrup pretreat...

Embodiment 2

[0033] (1) Pretreatment of feed liquid: 5.0 tons of fructose syrup with a mass concentration of 29.5% after isomerization and chromatographic separation are stored in the feed tank. After testing, the content of 5-hydroxymethylfurfural in the fructose syrup is 180mg / kg. Pass the fructose syrup stored in the feed tank into the activated carbon decolorization tank for decolorization, control the temperature of the fructose syrup at 55-60°C during the decolorization process, and control the chroma of the fructose syrup discharged from the activated carbon decolorization tank at Below 30RBU; In this step, when the color of the fructose syrup discharged from the activated carbon decolorization tank is greater than 30RBU, it is necessary to replace the activated carbon in the decolorization tank or add activated carbon to the decolorization tank to make the color of the discharged fructose syrup The temperature drops below 30RBU.

[0034](2) Adsorption: The fructose syrup pretreate...

Embodiment 3

[0041] (1) Pretreatment of feed liquid: 5.0 tons of fructose syrup with a mass concentration of 30.5% after isomerization and chromatographic separation are stored in the feed tank. After testing, the content of 5-hydroxymethylfurfural in the fructose syrup is 236mg / kg. Pass the fructose syrup stored in the feed tank into the activated carbon decolorization tank for decolorization, control the temperature of the fructose syrup at 60-70°C during the decolorization process, and control the chroma of the fructose syrup discharged from the activated carbon decolorization tank at Below 30RBU; In this step, when the color of the fructose syrup discharged from the activated carbon decolorization tank is greater than 30RBU, it is necessary to replace the activated carbon in the decolorization tank or add activated carbon to the decolorization tank to make the color of the discharged fructose syrup The temperature drops below 30RBU.

[0042] (2) Adsorption: The fructose syrup pretreat...

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Abstract

The invention relates to the food processing technology, in particular relates to a method for removing 5-hydroxymethyl furfural (5-HMF) in high-fructose corn syrup (HFCS), and belongs to the technical field of food chemistry. The method comprises the following steps: (1) feed liquid pretreatment: the chromaticity of the HFCS is controlled at below 30RBU; (2) adsorption: the 5-HMF content in the HFCS discharged from an adsorption column is less than 5mg / kg; (3) ion exchange: the electrical conductivity of the HFCS discharged from an ion exchange column is less than 5mu s / cm, and the PH value of the HFCS is 3-8; (4) deodorization: the chromaticity of the HFCS is less than 5RBU, and the light transmittance of the HFCS is more than 99%; and (5) concentration: the deodorized HFCS is evaporated by an evaporator so as to obtain the finished product of the HFCS with the mass concentration of 75-78%. The method has the advantages of simple process flow, low production cost and obvious removal effect of the 5-HMF (the content is less than 5mg / kg), and the adopted adsorbent can be reused after treatment.

Description

technical field [0001] The invention relates to a food processing technology, in particular to a method for removing 5-hydroxymethylfurfural in fructose syrup, and belongs to the technical field of food chemical industry. Background technique [0002] 5-Hydroxymethyl furfural (5-HMF for short) is an aldehyde compound produced by the dehydration of monosaccharide compounds such as fructose and glucose under high temperature or weak acid conditions. The compound has poor stability and is easily decomposed into acetylpropane Acid and formic acid, or polymerization. A certain amount of 5-hydroxymethylfurfural is inevitably produced in the production process of fructose syrup. With the continuous improvement of people's living standards and the improvement of food quality requirements, fructose syrup, as a food additive, has gradually attracted the attention of consumers. my country's current national standards have no requirements for 5-hydroxymethylfurfural. At present, most ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/09A23L1/015A23L5/20
Inventor 刘连民马士昌赵春德阮毅白玉国常书强康玉民
Owner SHANDONG SCENTS JIANYUAN BIO TECH
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