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Preparation method of low-calorie water-soluble dietary fiber resistant dextrin

A technology of resistant dextrin and dietary fiber, which is applied in the field of resistant dextrin, can solve the problems that the time cannot be adjusted freely, the reaction process is not easy to control, and the reaction yield is low, so as to achieve sufficient reaction time for dextrinization and avoid starch Agglomeration, the effect of increasing the specific surface area of ​​the reaction

Pending Publication Date: 2021-09-03
WENGYUAN GUANGYE QINGYI FOOD TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production process of resistant dextrin mainly adopts the acid-heat method, which has problems such as uneven reaction, high risk, and easy carbonization, resulting in low reaction yield and high production cost
CN105693871A discloses a method for preparing resistant dextrin, which uses a straight-pipe airflow drying device to prepare resistant dextrin, and its disadvantage is that the time cannot be adjusted freely, and it is difficult to control the reaction process
However, the reaction time is short, difficult to control, and it is a batch reaction with limited output

Method used

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  • Preparation method of low-calorie water-soluble dietary fiber resistant dextrin

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The embodiment provides a low-calorie soluble dietary fiber resistant dextrin embodiment the present preparation method, comprising the steps of:

[0042] (1) corn starch weighing 1kg, starch uniformly sprayed to 500mL aqueous solution containing 1.5g of hydrochloric acid, and stirred to obtain a uniform wet starch;

[0043] (2) figure 1 Tray dryer shown in FIG 1 to 5 disk layers dried, the inner temperature was raised to 170. disk HTF deg.] C, the top of the wet starch apparatus fed from feeder 2, the feeding amount is set to 8Hz, spindle speed 3 revolutions / minute, open the fan, the material to be discharged after the reaction product scorching Jingcu continuously through a tray dryer; acid vapors escaping during the reaction gas outlet means is discharged from a top outlet 7, after the dust has 3, a condenser 4 into the recovery reservoir tank 5;

[0044](3) dissolved in water Jingcu burnt product, dubbed a concentration of 30% (by scorching Jingcu product) solutions, ...

Embodiment 2

[0046] The embodiment provides a low-calorie soluble dietary fiber resistant dextrin embodiment the present preparation method, comprising the steps of:

[0047] (1) corn starch weighing 1kg, starch uniformly sprayed to 500mL aqueous solution containing 1.5g of sulfuric acid and stirred uniformly to obtain a wet starch;

[0048] (2) figure 1 Tray dryer shown in FIG 1 to 5 disk layers dried, the inner temperature was raised to 160. disk HTF deg.] C, the top of the wet starch apparatus fed from feeder 2, the feeding amount is set to 12Hz, spindle speed of 5 revolutions / minute, open the fan, the material to be discharged after the reaction product scorching Jingcu continuously through a tray dryer; acid vapors escaping during the reaction gas outlet means is discharged from a top outlet 7, after the dust has 3, a condenser 4 into the recovery reservoir tank 5;

[0049] (3) dissolved in water Jingcu burnt product, dubbed concentration of 40% (by scorching Jingcu product) solutions, ...

Embodiment 3

[0051] The embodiment provides a low-calorie soluble dietary fiber resistant dextrin embodiment the present preparation method, comprising the steps of:

[0052] (1) potato starch was weighed 1kg, starch uniformly sprayed to 500mL aqueous solution containing 1.5g of nitric acid, with stirring to give a uniform wet starch;

[0053] (2) figure 1 1 shown in a tray dryer set to a drying tray layer 4, the inner temperature was raised to HTF plate 180 ℃, the top of the wet starch apparatus fed from feeder 2, the feeding amount is set to 10Hz, spindle speed 2 revolutions / minute, open the fan, the material to be discharged after the reaction product scorching Jingcu continuously through a tray dryer; acid vapors escaping during the reaction gas outlet means is discharged from a top outlet 7, after the dust has 3, a condenser 4 into the recovery reservoir tank 5;

[0054] (3) dissolved in water Jingcu burnt product, dubbed a concentration of 30% (by scorching Jingcu product) solutions, i...

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Abstract

The invention discloses a preparation method of low-calorie water-soluble dietary fiber resistant dextrin, which comprises the steps of taking acid-treated wet starch as a raw material, continuously spraying the acid-treated wet starch on a heated drying tray through a feeder at the top of a tray dryer, and carrying out preliminary acid thermal reaction; in the reaction process, enabling a target arm to rotate to drive target blades to scrape materials to the next layer of drying tray, meanwhile, additionally arranging a rolling roller on each layer, and discharging a pyrodextrin crude product after layer-by-layer reaction; discharging acid steam escaped from the material, condensing and recycling; and refining the pyrodextrin crude product to obtain a resistant dextrin product. According to the method, the resistant dextrin is prepared by adopting the tray dryer, the starch is uniformly heated, the reaction time is controllable, the dextrinization reaction time is more sufficient, and the acid heat reaction efficiency is higher; meanwhile, continuous feeding can be achieved, and the yield is obviously increased; and the process is simple, the production cost is reduced, and the production capacity of preparing the resistant dextrin is effectively improved.

Description

Technical field [0001] The present invention belongs to the technical field dextrin resistance, particularly, to a low-calorie soluble dietary fiber resistant dextrin preparation. Background technique [0002] In recent years, due to the high calorie, high sugar intake leads to obesity, diabetes, coronary heart disease and other illnesses generally improved, low-sugar, low in calories and rich in dietary fiber foods began to receive more and more attention. Dietary fiber is known as the seventh largest impact of nutrients essential to human health, divided into soluble and insoluble dietary fiber. Among them, as a common resistant dextrin soluble dietary fiber, is widely used in food and beverages, dairy products, health care products and the like. Resistant dextrin is made from starch processing, low molecular weight water-soluble dietary fiber is a section through a glycosyltransferase reaction and degradation formed. Because of having a α-1,2 and α-1,3 glycosidic bonds, as wel...

Claims

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Application Information

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IPC IPC(8): C08B30/16
CPCC08B30/16
Inventor 靳福娅马梦垚卫娜徐勇李雄亮
Owner WENGYUAN GUANGYE QINGYI FOOD TECH
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