CN107536060A - A kind of method that low pressure humid heat treatment prepares amino acid modified corn slow-digestion starch - Google Patents
A kind of method that low pressure humid heat treatment prepares amino acid modified corn slow-digestion starch Download PDFInfo
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Abstract
The invention belongs to converted starch preparing technical field, is related to a kind of method that low pressure humid heat treatment prepares amino acid modified corn slow-digestion starch.The present invention adds lysine or asparatate using cornstarch as raw material, and after being well mixed, under conditions of moisture 30%, low pressure handles the modified corn starch for preparing different slow digestion characteristics for 2 hours.The present invention can destroy the relatively compact structure of starch using low pressure humid heat treatment, change the crystalline texture of starch, be a kind of ideal green method of modifying for changing the properties such as starch granules particle diameter, crystallinity.Product nutritive value is high, healthcare function is good, slow-digestion starch content improves 76.7%, has good stability, functional, the defects of low yield in existing slow-digestion starch production technology, stability are poor and cost is high is overcome, the processing for cornstarch resource provides new approaches.
Description
Technical field
The invention belongs to converted starch preparing technical field, is related to the preparation method of slow-digestion starch, particularly a kind of low
The method that pressure humid heat treatment prepares corn slow-digestion starch.
Background technology
The close phase of generation of the chronic diseases such as blood sugar for human body and insulin level and fat, diabetes and angiocardiopathy
Close.If blood sugar in diabetic patients controls bad for a long time, the severe complications such as eye, nerve, angiocardiopathy and infection can occur.
Control blood glucose there is no effect method, the mainly aggregate measures such as diet control, kinesiatrics and hypoglycemic medicine application at present, and close
Reason is kept on a diet and is the key that blood glucose is effectively controlled.Slow-digestion starch can produce relatively stable, lasting blood glucose
Level, increasing concern is caused in recent years.On the preparation of slow-digestion starch, at present mainly using autoclave process, enzyme process,
Acid system etc..Up to the present, use cornstarch ripe for the technology of raw material production slow-digestion starch, but with cornstarch
For raw material, there is not been reported with the damp and hot method for preparing slow-digestion starch of amino acid blending low pressure.
The content of the invention
The preparation method of slow-digestion starch is prepared with amino acid blending low pressure present invention aims at a kind of starch of offer, is adopted
The converted starch prepared with this method has good slowly digestible energy.
The present invention adds lysine or asparatate using cornstarch as raw material, after being well mixed, contains in moisture
Under conditions of amount 30%, low pressure handles the modified corn starch for preparing different slow digestion characteristics for 2 hours.
The technical proposal of the invention is realized in this way：A kind of method that low pressure prepares corn slow-digestion starch, specific bag
Include following steps：
(1) cornstarch is dissolved in the water, stirred at room temperature, corn starch milk is made；
(2) lysine or asparatate are added into corn starch milk, 30~40min is stirred at room temperature, in 35~50
DEG C dry to moisture be less than 10%, crush；
(3) water content of product is to 30% after regulating step (2) crushes；121 DEG C, 103.4KPa processing in autoclave
2h, then it is crushed in 40 DEG C of drying, obtain slow-digestion starch.
Further, the moisture of corn starch milk is 80% in the step (1).
Further, lysine or the asparatate concentration in corn starch milk are not higher than 6% in the step (2).
Compared with prior art, the inventive method is a kind of physical modification method of safety and environmental protection, simple production process.It is raw
Toxic chemical is not used during production, and is generated without any noxious material and byproduct.The present invention is damp and hot using low pressure
Processing can destroy the relatively compact structure of starch, change the crystalline texture of starch, be a kind of ideal change starch granules
The green method of modifying of the properties such as particle diameter, crystallinity.Product nutritive value is high, healthcare function is good, and slow-digestion starch content improves
76.7%, there is good stability, functional, overcome low yield in existing slow-digestion starch production technology, stably
Property difference and cost it is high the defects of, the processing for cornstarch resource provides new approaches.
Embodiment
Present disclosure is described in detail below by embodiment, but is not used in and limits the scope of the invention, such as nothing
Specified otherwise, experimental drug involved in the present invention and raw material are commercially available, cornstarch lot number used in the present invention
Hylon, it is purchased from National Starch company；Lysine product article No. L5501, asparagine acid product article No. A9256, are purchased from
Sigma companies.
Embodiment 1
Cornstarch is dissolved in the water, stirred at room temperature, the water content of adjusting corn starch is to 30%, in autoclave
121 DEG C, after 103.4KPa processing 2h, the drying of 40 DEG C of sample crushes, both slow-digestion starch.Measurement slow-digestion starch contains
Amount, while using cornstarch as raw material, prepare slow-digestion starch according to existing processing method, carry out the comparing result such as institute of table 1
Show, find the slow-digestion starch content height obtained using low pressure humid heat treatment method.
The damp and hot method of the low pressure of table 1 and conventional process cornstarch experimental data
| Sample | Fast digestible starch (%) | Slow-digestion starch (%) | Resistant starch (%) |
| Cornstarch | 21.03±0.4 | 17.91±0.6 | 61.06±0.5 |
| Low pressure handles cornstarch | 38.77±0.3 | 26.51±0.5 | 34.72±0.6 |
Embodiment 2
Take 9.7g starch to be dissolved in 40ml water, stir 10min at room temperature, the moisture of corn starch milk is 80%.So
0.3g lysines or asparatate are added afterwards, stirs 30min at room temperature, are dried in 40 DEG C to moisture below 10%,
Crush；Then the water content of milling product is adjusted to 30%, 121 DEG C in autoclave, after 103.4KPa processing 2h, by sample 40
DEG C drying, crush, both slow-digestion starch.Content of starch is as shown in table 2.
The different disposal method of table 2 prepares the content of slow-digestion starch
| Sample | Fast digestible starch (%) | Slow-digestion starch (%) | Resistant starch (%) |
| Cornstarch and lysine mixture | 22.08±0.4 | 21.21±0.6 | 56.71±0.4 |
| Low pressure handles cornstarch and lysine mixture | 29.90±0.5 | 31.64±0.4 | 38.46±0.4 |
| Cornstarch and asparagine acid blend | 21.90±0.2 | 20.86±0.4 | 57.24±0.3 |
| Low pressure handles cornstarch and asparagine acid blend | 35.75±0.3 | 31.56±0.5 | 32.69±0.3 |
Embodiment 3
Take 9.7g starch to be dissolved in 40ml water, stir 10min at room temperature, the moisture of corn starch milk is 80%.So
0.3g lysines or asparatate are added afterwards, stirs 40min at room temperature, are dried in 50 DEG C to moisture below 10%,
Crush；Then the water content of milling product is adjusted to 30%, 121 DEG C in autoclave, after 103.4KPa processing 2h, by sample 40
DEG C drying, crush, both slow-digestion starch.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope of present disclosure, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (3)
1. a kind of method that low pressure humid heat treatment prepares amino acid modified corn slow-digestion starch, it is characterised in that including following
Step：
(1) cornstarch is dissolved in the water, stirred at room temperature, corn starch milk is made；
(2) lysine or asparatate are added into corn starch milk, stirs 30~40min at room temperature, it is dry in 35~50 DEG C
It is dry to be less than 10% to moisture, crush；
(3) water content of product is to 30% after regulating step (2) crushes；121 DEG C in autoclave, 103.4KPa processing 2h, then
By it in 40 DEG C of drying, crush, obtain slow-digestion starch.
2. the method that low pressure humid heat treatment according to claim 1 prepares amino acid modified corn slow-digestion starch, it is special
Sign is that the moisture of corn starch milk is 80% in the step (1).
3. the method that low pressure humid heat treatment according to claim 1 prepares amino acid modified corn slow-digestion starch, it is special
Sign is that lysine or the asparatate concentration in corn starch milk are not higher than 6% in the step (2).
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| CN201710842248.6A CN107536060A (en) | 2017-09-18 | 2017-09-18 | A kind of method that low pressure humid heat treatment prepares amino acid modified corn slow-digestion starch |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108477612A (en) * | 2018-02-06 | 2018-09-04 | 刘利勇 | A kind of dendrobium nobile nutritive powder and preparation method including dendrobium candidum purified extract |
| CN110499347A (en) * | 2019-09-30 | 2019-11-26 | 大连民族大学 | A kind of preparation method of the coralliform starch of surface negative charge distribution |
| CN110522033A (en) * | 2019-09-30 | 2019-12-03 | 大连民族大学 | The method that annealing prepares functional starch is blended in a kind of corn oil and amino acid |
| CN111264840A (en) * | 2020-02-26 | 2020-06-12 | 江南大学 | Preparation method of slowly digestible starch |
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| CN106579351A (en) * | 2016-12-26 | 2017-04-26 | 大连民族大学 | Method for producing slowly digestible corn starch through heat-moisture treatment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108477612A (en) * | 2018-02-06 | 2018-09-04 | 刘利勇 | A kind of dendrobium nobile nutritive powder and preparation method including dendrobium candidum purified extract |
| CN110499347A (en) * | 2019-09-30 | 2019-11-26 | 大连民族大学 | A kind of preparation method of the coralliform starch of surface negative charge distribution |
| CN110522033A (en) * | 2019-09-30 | 2019-12-03 | 大连民族大学 | The method that annealing prepares functional starch is blended in a kind of corn oil and amino acid |
| CN110499347B (en) * | 2019-09-30 | 2022-09-23 | 大连民族大学 | Preparation method of coral-shaped starch with negative surface charge distribution |
| CN111264840A (en) * | 2020-02-26 | 2020-06-12 | 江南大学 | Preparation method of slowly digestible starch |
| CN111264840B (en) * | 2020-02-26 | 2022-09-27 | 江南大学 | Preparation method of slowly digestible starch |
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