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Method for improving extraction ratio of trehalose

A trehalose and maltose technology, applied in the field of sugar industry, can solve the problems of high production cost, low trehalose extraction yield, difficult separation of maltose and trehalose, etc., and achieve the effect of expanding the scope of application

Inactive Publication Date: 2008-07-30
FUTASTE PHARM CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for improving the extraction yield of trehalose, so as to solve the problems in the prior art that the separation of maltose and trehalose is difficult, the extraction yield of trehalose is low, and the production cost is high.

Method used

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Examples

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Embodiment

[0014] Example: Take 3810 g of trehalose solution with a refractive index concentration of 35%, and detect it with a high-performance liquid chromatograph. The retention time of trehalose is 9.63 minutes, and the content is 68.58%, and the retention time of maltose is 10.51 minutes, and the content is 22.95%. The retention time of glucose is 11.65 minutes, the content is 3.52%, and the content of maltotriose and other impurities is 4.95%. %Add 67 grams of catalyst, tighten the lid of the reaction kettle, control the stirring speed to 350 rpm, the temperature is 128°C, the pressure in the reaction kettle is between 8.0 and 10.0MPa, and catalytic hydrogenation is carried out. When the hydrogen absorption in the kettle stops, Stop heating and lower the temperature, settle for 20 minutes and discharge. After hydrogenation, measure the mixed solution with high performance liquid chromatography, find that there is a very large peak at the retention time of 9.63 minutes, and the cont...

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Abstract

The invention discloses a method of increasing the extraction yield of trehalose, which belongs to sugar industry technical field. Adopting the techniques of hydrogenation and chromatographic resolution, the microorganism or enzyme are used for transforming the starch and the trehalose obtained undergoes the hydrogenation reaction with the mixing solution of the maltose, glucose and maltotriose; therefore the impurity in the mixing solution produces the maltitol, sorbierite and maltotriitol; the trehalose has no reducibility, and is stable in the hydrogenation reaction; and the trehalose is separated from the maltitol, sorbierite and maltotriitol in the mixing solution by the chromatographic resolution technique simulating the moving bed; and the purity and extraction yield of the trehalose are largely increased; the trehalose is crystallized by cooling, and the trehalose product is finally obtained. Compared with the technique of producing the trehalose by adopting the original microorganism or enzyme method, the technique of the invention increases the extraction yield over 80 percent, the sub product maltitol has a comparatively high utilization value; and therefore the production cost for producing the trehalose and the market price are reduced, which makes sense for increasing the market competition of trehalose.

Description

technical field [0001] The invention belongs to the technical field of sugar industry, and relates to a method for increasing the yield of functional sugar. Background technique [0002] Trehalose is produced at home and abroad by converting starch into maltose and then into trehalose, followed by crystallization and separation. Its preparation includes the following steps: converting starch to produce maltose, then converting maltose into trehalose by maltose / trehalase produced by thermophilic bacteria, then adding powdered activated carbon to the trehalose solution, soaking and stirring, and then filtering with a plate and frame, passing ion Exchange and concentrate to obtain trehalose syrup with a sugar content of 80%, put it in a crystallization tank, after slow crystallization, redissolve in deionized water, recrystallize and dry, and finally obtain a finished product with a trehalose content of more than 98% . In this process, due to the influence of the enzyme conve...

Claims

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Application Information

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IPC IPC(8): C13K13/00
Inventor 王星云王成福田强王关斌曹玉华刘晓娟
Owner FUTASTE PHARM CO LTD
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