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High-yield method for co-producing resistant dextrin, beta-cyclodextrin and F42 HFCS (high fructose corn syrup)

A technology of resistant dextrin and fructose syrup, applied in ion exchange regeneration, ion exchange, selective adsorption, etc., can solve the problems of high raw material consumption, waste of glucose syrup, low purity of resistant dextrin, etc., and achieve the improvement of raw material Utilization and yield, reducing the difficulty of refining process, reducing the effect of non-functional components

Inactive Publication Date: 2013-04-17
BAOLINGBAO BIOLOGY
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AI Technical Summary

Problems solved by technology

The disadvantage of this method is that, on the one hand, the purity of resistant dextrin produced by this method is low, and after enzymatic hydrolysis, the content of digestible oligosaccharides and glucose is high, which is not conducive to the later refining treatment, which limits its use in people such as diabetics, The application in health food for obese patients greatly limits the application field of resistant dextrin; on the other hand, there are also related patents where the glucose syrup produced after enzymatic hydrolysis is fermented by yeast and eaten, or separated and sold as low-priced feed , the purity of resistant dextrin produced by this method can be improved, but a large amount of glucose syrup is wasted by microorganisms or sold at a low price, resulting in high production costs, high raw material consumption, small output, and high prices, which cannot meet market needs in large quantities Waiting for unfavorable situation

Method used

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  • High-yield method for co-producing resistant dextrin, beta-cyclodextrin and F42 HFCS (high fructose corn syrup)

Examples

Experimental program
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Embodiment

[0021] 1 Charcoal gelatinization reaction: Add cornstarch to a heating device with a mixer, spray 1% hydrochloric acid while stirring, then mix well, heat slowly, and heat up to 150°C for 60 minutes to obtain pyrodextrin.

[0022] 2. Liquefaction: Make a 20% solution of pyrodextrin, adjust the pH to 5.8, add 0.5 L / ton of dry starch high-temperature α-amylase, and hydrolyze it at 105°C for 20 minutes to obtain crude resistant dextrin.

[0023] 3 Transformation: Cool down the temperature of the liquefied liquid to 58°C, the pH value is 7.0, add cyclodextrin glucosyltransferase at a concentration of 7 enzyme activity units per gram of starch, add 1% toluene, carry out stirring reaction for 64 hours, and then carry out vacuum Filter the insoluble compound, recover toluene, concentrate and refine, crystallize and dry to obtain the β-cyclodextrin product.

[0024] 4 Saccharification, chromatographic separation: after vacuum filtration, the solution is adjusted to pH 4.23, 0.9L / ton (...

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Abstract

The invention discloses a high-yield method for co-producing the resistant dextrin, the beta-cyclodextrin and the F42 HFCS. According to the process, corn starch serves as a raw material, digestible dextrin is converted into the beta-cyclodextrin through burning, liquefaction and addition of cyclodextrin glucoxyltransferase, and composite insoluble substances are obtained through toluene composition and filtered, toluene is recycled and the beta-cyclodextrin is obtained; the surplus solution is subjected to composite saccharifying enzyme saccharification, chromatographic separation and refining, and resistant dextrin and corn syrup are obtained; and the corn syrup is subjected to isomerization and fining, and the F42 HFCS is obtained. According to the method, the high-purity resistant dextrin can be produced, the application field of the resistant dextrin is expanded, the surplus digestible mother solution is effectively used to produce the beta-cyclodextrin and the F42 HFCS, the production cost is greatly reduced, and the material usage rate and the yield are improved apparently.

Description

technical field [0001] The invention belongs to the technical field of preparing resistant dextrin from starch, in particular to a method for co-producing resistant dextrin, beta-cyclodextrin and F42 fructose syrup with high yield. Background technique [0002] Resistant dextrin, also known as indigestible dextrin, can become an integral part of a balanced diet, has the common function of water-soluble dietary fiber, and also plays an important role in regulating the physiological functions of the human body, such as reducing blood sugar, blood lipid response and improving intestinal tract health etc. Its digestive tolerance threshold is also very prominent, making the amount it digests optimally suited to achieve the desired benign changes in the gut ecosystem. Resistant dextrin is recognized as dietary fiber in Europe, the United States, Japan, China and other countries, and can be used in unlimited quantities as food and food accessories. Now it has been used in beverag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/14C12P19/18C12P19/24B01D15/08
Inventor 刘宗利王乃强王彩梅王明珠尹月玲张姝李方华
Owner BAOLINGBAO BIOLOGY
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