CN102443069B - Corn processing method - Google Patents
Corn processing method Download PDFInfo
- Publication number
- CN102443069B CN102443069B CN 201010511910 CN201010511910A CN102443069B CN 102443069 B CN102443069 B CN 102443069B CN 201010511910 CN201010511910 CN 201010511910 CN 201010511910 A CN201010511910 A CN 201010511910A CN 102443069 B CN102443069 B CN 102443069B
- Authority
- CN
- China
- Prior art keywords
- corn
- particle
- plumule
- treatment process
- process according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The invention discloses a corn processing method, comprising the following steps of: (1) soaking dry corn granules in a soaking solution for 12-16 hours and obtaining the pretreated corn granules; (2) removing germs of the pretreated corn granules to obtain the corn granules without germs; (3) introducing the corn granules without germs to a sulphurous acid solution, soaking for 20-28 hours and then performing solid-liquid separation; (4) grinding a solid component obtained by the solid-liquid separation, obtaining slurry and removing fibrous residues in the slurry; and (5) centrifuging the component without fibrous residues and removing a supernatant liquor containing proteins to obtain starch milk. According to the corn processing method, by means of the manner of removing germs and then soaking, the corns are crushed while the germs are removed; the crushed corns are soaked and the penetrating capability of the sulphurous acid solution is improved, so that protein meshes can be dispersed rapidly, the starch adhered to the fibers is reduced and the yielding rate of the starch is improved.
Description
Technical field
The present invention relates to the corn deep processing field, relate to particularly a kind for the treatment of process of corn.
Background technology
W-Gum is the raw material that is widely used in the corn deep processing industries such as feed, β-amylose, and China is starch and β-amylose big producing country, and wherein the β-amylose annual production exceedes 6,000,000 tons, and production technique adopts wet method to soak mostly.The length of soaking quality, the soak time of effect directly affects yield and quality and the production cost of finished product of starch and other byproducts in processing.
Traditional technique for soaking corn adopts sulfurous acid at the temperature of 45-55 ℃, dried corn particle to be soaked, after soaking end, soaked corn particle is taken off embryo, the corn particle that will take off afterwards after embryo grinds, and obtains soup compound, and removes the fibrous residue in this soup compound; To remove afterwards the component that obtains after the fibrous residue and carry out centrifugally, remove the supernatant liquid phase that contains protein, obtain starch milk.But the shortcoming of this treatment process is starch can not be extracted fully, and the rate of loss of starch is high, thereby causes the yield of starch lower.
Therefore, in the urgent need to developing a kind of method of the novel processing corn that can fully the starch isolation in corn be gone out.
Summary of the invention
The object of the invention is to overcome the existing extraction starch that exists for the treatment of the method for corn insufficient, cause the high defective of starch rate of loss, providing a kind of can go out the starch isolation in corn effectively, thereby effectively reduces the corn processing methods of the rate of loss of starch.
The present inventor has carried out careful research to the treating processes of corn, discovery is in traditional corn soaking process, sulfurous acid solution to the penetrating power of corn a little less than, cause in corn most protein net fully not opened, cause taking away a large amount of starch when separated fiber.
Based on this discovery, the invention provides a kind for the treatment of process of corn, wherein, the method comprises:
(1) dried corn particle is placed in soak solution and soaked 12-16 hour, obtain pretreated corn particle;
(2) remove the plumule of pretreated corn particle, obtained removing the corn particle of plumule;
The corn particle that has removed plumule that (3) will obtain is incorporated into to soak after 20-28 hour in sulfurous acid solution and carries out solid-liquid separation;
(4) solid components that above-mentioned solid-liquid separation is obtained grinds, and obtains soup compound, and removes the fibrous residue in this soup compound;
(5) will remove the component that obtains after the fibrous residue and carry out centrifugally, remove the supernatant liquid phase that contains protein, obtain starch milk.
In corn processing methods provided by the invention, by the mode of going to soak again after embryo, when taking off plumule, pulverized corn, corn after pulverizing is soaked again, improved the penetrating power of sulfurous acid solution, thus rapid dispersion protein net, and reduced the starch that sticks on fiber, thereby improved the yield of starch.
Embodiment
The invention provides a kind for the treatment of process of corn, wherein, the method comprises:
(1) dried corn particle is placed in soak solution and soaked 12-16 hour, obtain pretreated corn particle;
(2) remove the plumule of pretreated corn particle, obtained removing the corn particle of plumule;
The corn particle that has removed plumule that (3) will obtain is incorporated into to soak after 20-28 hour in sulfurous acid solution and carries out solid-liquid separation;
(4) solid components that above-mentioned solid-liquid separation is obtained grinds, and obtains soup compound, and removes the fibrous residue in this soup compound;
(5) will remove the component that obtains after the fibrous residue and carry out centrifugally, remove the supernatant liquid phase that contains protein, obtain starch milk.
According to the present invention, the water content of described dried corn particle can in very large range change, and under preferable case, the water content of described dried corn particle is the 14-16 % by weight.
According to the present invention, dried corn particle is placed in the condition that soak solution soaks can in very large range be changed, but under preferable case, the temperature of soaking can be 40-60 ℃, ratio between the amount of described soak solution and dried corn particle has no particular limits, as long as dried corn particle is fully soaked, but under preferable case, the liquid level of described soak solution is higher than at least 10 centimetres of dried corn particles.Described soak solution can be the sulfurous acid solution of 0.15-0.25 % by weight concentration, can be also water, because corn approximately is being in the water-swelling phase about 0-16 hour, the effect that sulfurous acid solution plays is little, therefore preferably make water as soak solution, can reduce like this consumption of sulfurous acid solution.According to the present invention, it is conventionally known to one of skill in the art soaking the equipment that adopts, and for example, can soak corn in steeping tank.
According to the present invention, the described method that removes the plumule of pretreated corn particle can be taken off for various corns the method for embryo, for example, the method can comprise: pretreated corn particle is once ground, the condition of once grinding makes corn particle be broken into average particle diameter can be the particle of 2-5 millimeter, and removes the plumule under grinding; Carry out afterwards regrind, the condition of regrind makes the average particle diameter of the particle that obtains can be the 1-1.5 millimeter, and removes the plumule under grinding.
In the present invention, with removing of obtaining the corn particle of plumule be incorporated into soak in sulfurous acid solution condition can in very large range change, but under preferable case, the temperature of described immersion can be 40-60 ℃, more preferably 45-55 ℃, the amount of the described sulfurous acid aqueous solution and the ratio that has removed between the amount of corn particle of plumule have no particular limits, fully soak as long as can carry out the corn particle that has removed plumule, under preferable case, the liquid level of the described sulfurous acid aqueous solution can be higher than at least 10 centimetres of corn particles.The concentration of the described sulfurous acid aqueous solution can be 0.15-0.25 % by weight, more preferably 0.2-0.25 % by weight.According to the present invention, it is conventionally known to one of skill in the art soaking the equipment that adopts, and for example, can soak corn in steeping tank.
According to the present invention, described method of removing fibrous residue is conventionally known to one of skill in the art, for example, described soup compound can be incorporated in pressure curved sieve and sieve, the compass screen surface radian of bent sieve is 100-120 °, and the sieve seam width of bent sieve is the 50-75 micron, and feed pressure is 0.2-0.4MPa.Described pressure curved sieve can be commercially available, for example the DZQ50 type pressure curved sieve of Yixing starch instrument factory production.
In the present invention, described centrifugal equipment and condition are conventionally known to one of skill in the art, for example, can carry out centrifugal, centrifugal rotating speed and can be 2000-3000rpm in whizzer, and the centrifugal time can be 10-20 second.
Below by specific embodiment, the present invention is described in more details.
Embodiment 1
(1) 10 tons of dried corns (water content is 15 % by weight) are placed in steeping tank, and introduce water corn is soaked, the temperature of immersion is 50 ℃, and the time of immersion is 16 hours, and the introducing amount of water makes liquid level higher than 10 centimetres of corn particles;
(2) corn after soaking in step (1) connects in the degerming mill machine that water is transported to the DTMT-80 type together and takes off embryo, and being milled to average particle diameter through the corn particle of the draining screen in germ separator is the particle of 3 millimeters; Afterwards with this particle together with water under draining screen, be transported in swirler, to remove the plumule under grinding; Afterwards, to remove the corn particle of the plumule under grinding and water in swirler is incorporated into together and proceeds in DTMT-80 type degerming mill machine to grind, obtain average particle diameter after grinding and be the particle of 1.5 millimeters, afterwards with this particle together with water under draining screen, be delivered in swirler, to remove the plumule under grinding;
The corn particle that (3) will remove plumule is incorporated in the sulfurous acid solution that concentration is 0.25 % by weight, soaks 24 hours at the temperature of 50 ℃, carries out afterwards solid-liquid separation;
(4) solid components that above-mentioned solid-liquid separation is obtained is incorporated in the impact grinding of LZM685-NA type and grinds, obtain soup compound, and described soup compound is incorporated into pressure curved sieve (Yixing starch instrument factory, DZQ50) sieve in, so that the fibrous residue in this soup compound is removed, wherein, the compass screen surface radian of pressure curved sieve is 120 °, the sieve seam width of pressure curved sieve is 75 microns, and feed pressure is 0.2MPa;
(5) will remove the component that obtains after the fibrous residue be incorporated into Wei Si cut down carry out in Leah SDA130 type whizzer centrifugal, and will have the supernatant liquid of protein to get rid of mutually, wherein, centrifugal rotating speed is 2000rpm, the centrifugal time is 20 seconds, obtains starch milk A1.
Comparative Examples 1
Prepare reference starch milk CA1 according to the method identical with embodiment 1, difference is, 10 tons of dried corns (water content is 15 % by weight) are placed in steeping tank, and to introduce concentration be that the sulfurous acid solution of 0.25% % by weight soaks corn, the temperature of soaking is 50 ℃, the time of soaking is 40 hours, and the introducing amount of sulfurous acid solution makes liquid level higher than 10 centimetres of corn particles; Take off again afterwards embryo, except the step of fiber and albumen, obtain reference starch milk CA1.
Embodiment 2
(1) 10 tons of dried corns (water content is 15 % by weight) are placed in steeping tank, and introduce water corn is soaked, the temperature of immersion is 45 ℃, and the time of immersion is 12 hours, and the introducing amount of water makes liquid level higher than 10 centimetres of corn particles;
(2) corn after soaking in step (1) connects in the degerming mill machine that water is transported to the DTMT-80 type together and takes off embryo, and being milled to average particle diameter through the corn particle of the draining screen in germ separator is the particle of 2 millimeters; Afterwards with this particle together with water under draining screen, be transported in swirler, to remove the plumule under grinding; Afterwards, to remove the corn particle of the plumule under grinding and water in swirler is incorporated into together and proceeds in DTMT-80 type degerming mill machine to grind, obtain average particle diameter after grinding and be the particle of 1 millimeter, afterwards with this particle together with water under draining screen, be delivered in swirler, to remove the plumule under grinding;
The corn particle that (3) will remove plumule is incorporated in the sulfurous acid solution that concentration is 0.2 % by weight, soaks 26 hours at the temperature of 55 ℃, carries out afterwards solid-liquid separation;
(4) solid components that above-mentioned solid-liquid separation is obtained is incorporated in the impact grinding of LZM685-NA type and grinds, obtain soup compound, and described soup compound is incorporated into pressure curved sieve (Yixing starch instrument factory, DZQ50) sieve in, so that the fibrous residue in this soup compound is removed, wherein, the compass screen surface radian of pressure curved sieve is 120 °, the sieve seam width of pressure curved sieve is 75 microns, and feed pressure is 0.2MPa;
(5) will remove the component that obtains after the fibrous residue be incorporated into Wei Si cut down carry out in Leah SDA130 type whizzer centrifugal, and will have the supernatant liquid of protein to get rid of mutually, wherein, centrifugal rotating speed is 2500rpm, the centrifugal time is 15 seconds, obtains starch milk A2.
Embodiment 3
(1) 10 tons of dried corns (water content is 15 % by weight) are placed in steeping tank, and introduce water corn is soaked, the temperature of immersion is 55 ℃, and the time of immersion is 14 hours, and the introducing amount of water makes liquid level higher than 10 centimetres of corn particles;
(2) corn after soaking in step (1) connects water and is transported to together in DTMT-80 type degerming mill machine and takes off embryo, and being milled to average particle diameter through the corn particle of the draining screen in germ separator is the particle of 2.5 millimeters; Afterwards with this particle together with water under draining screen, be transported in swirler, to remove the plumule under grinding; Afterwards, to remove the corn particle of the plumule under grinding and water in swirler is incorporated into together and proceeds in DTMT-80 type degerming mill machine to grind, obtain average particle diameter after grinding and be the particle of 1 millimeter, afterwards with this particle together with water under draining screen, be delivered in swirler, to remove the plumule under grinding;
The corn particle that (3) will remove plumule is incorporated in the sulfurous acid solution that concentration is 0.15 % by weight, soaks 22 hours at the temperature of 50 ℃, carries out afterwards solid-liquid separation;
(4) solid components that above-mentioned solid-liquid separation is obtained is incorporated in the impact grinding of LZM685-NA type and grinds, obtain soup compound, and described soup compound is incorporated into pressure curved sieve (Yixing starch instrument factory, DZQ50) sieve in, so that the fibrous residue in this soup compound is removed, wherein, the compass screen surface radian of pressure curved sieve is 120 °, the sieve seam width of pressure curved sieve is 75 microns, and feed pressure is 0.2MPa;
(5) will remove the component that obtains after the fibrous residue be incorporated into Wei Si cut down carry out in Leah SDA130 type whizzer centrifugal, and will have the supernatant liquid of protein to get rid of mutually, wherein, centrifugal rotating speed is 3000rpm, the centrifugal time is 10 seconds, obtains starch milk A3.
Embodiment 4-6
Record total reducing sugar, starch content=0.9 * total reducing sugar by GBT 15038-2006 total reducing sugar direct titrimetric method respectively.Detect the content that soaks starch in the starch milk A1-A3 that obtains after end in embodiment 1-3 in step (4), the content of described starch refers to that starch consolidating in corn contains the weight percent in thing, and result is as shown in table 1.
Comparative Examples 2
According to the method identical with embodiment 4-6, detect the content of starch in the reference starch milk CA1 that obtains in Comparative Examples 1, result is as shown in table 1.
Table 1
| The embodiment numbering | The starch milk numbering | Starch content | Total soak time |
| Embodiment 4 | A1 | 72.1 % by weight | 40 hours |
| Comparative Examples 2 | CA1 | 64.2 % by weight | 40 hours |
| Embodiment 5 | A2 | 72.8 % by weight | 38 hours |
| Embodiment 6 | A3 | 72.2 % by weight | 36 hours |
In the data of upper table, compare with the starch content of the reference starch milk CA1 that detects in Comparative Examples 2, the starch content of the starch milk A1-A3 that embodiment of the present invention 4-6 detects significantly improves, and this shows, by the mode of going to soak again after embryo, when taking off plumule, pulverized corn, the corn after pulverizing is soaked again, improved the penetrating power of sulfurous acid solution, thereby rapid dispersion protein net, and reduced the starch that sticks on fiber, thus improved the yield of starch.
Claims (9)
1. the treatment process of a corn, wherein, the method comprises:
(1) dried corn particle is placed in soak solution and soaked 12-16 hour, obtain pretreated corn particle;
(2) remove the plumule of pretreated corn particle, obtained removing the corn particle of plumule;
The corn particle that has removed plumule that (3) will obtain is incorporated into to soak after 20-28 hour in sulfurous acid solution and carries out solid-liquid separation;
(4) solid components that above-mentioned solid-liquid separation is obtained grinds, and obtains soup compound, and removes the fibrous residue in this soup compound;
(5) will remove the component that obtains after the fibrous residue and carry out centrifugally, remove the supernatant liquid phase that contains protein, obtain starch milk.
2. treatment process according to claim 1, wherein, it is 40-60 ℃ that dried corn particle is placed in the soaking temperature that soak solution soaks, the liquid level of described soak solution is higher than at least 10 centimetres of dried corn particles.
3. treatment process according to claim 1 and 2, wherein, described soak solution is water.
4. treatment process according to claim 1, wherein, the method that removes the plumule of pretreated corn particle comprises: pretreated corn particle is once ground, the condition of once grinding makes corn particle be broken into the particle that average particle diameter is the 2-5 millimeter, and removes the plumule under grinding; Carry out afterwards regrind, it is the 1-1.5 millimeter that the condition of regrind makes the average particle diameter of the particle that obtains, and removes the plumule under grinding.
5. treatment process according to claim 1, wherein, with removing of obtaining the corn particle of plumule to be incorporated into the soaking temperature that soaks in sulfurous acid solution be 40-60 ℃, and the liquid level of described sulfurous acid solution is higher than at least 10 centimetres of corn particles.
6. treatment process according to claim 1 or 5, wherein, the concentration of described sulfurous acid solution is the 0.15-0.25 % by weight.
7. treatment process according to claim 1, wherein, the method for removing fibrous residue comprises: described soup compound is incorporated in pressure curved sieve sieves, the compass screen surface radian of bent sieve is 100-120 °, the sieve seam width of bent sieve is the 50-75 micron, and feed pressure is 0.2-0.4MPa.
8. treatment process according to claim 1, wherein, described centrifugal condition comprises: centrifugal rotating speed is 2000-3000rpm, the centrifugal time is 10-20 second.
9. treatment process according to claim 1, wherein, the water content of described dried corn particle is the 14-26 % by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010511910 CN102443069B (en) | 2010-10-13 | 2010-10-13 | Corn processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010511910 CN102443069B (en) | 2010-10-13 | 2010-10-13 | Corn processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102443069A CN102443069A (en) | 2012-05-09 |
| CN102443069B true CN102443069B (en) | 2013-06-19 |
Family
ID=46006038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010511910 Expired - Fee Related CN102443069B (en) | 2010-10-13 | 2010-10-13 | Corn processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102443069B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850460B (en) * | 2012-09-05 | 2014-12-17 | 施韧 | Sectional corn dipping method |
| CN102909109B (en) * | 2012-09-21 | 2015-03-04 | 安徽中粮生化燃料酒精有限公司 | Methods for degerming and pretreating corns and method for brewing alcohol by adopting corns |
| CN106519045B (en) * | 2016-11-11 | 2018-09-04 | 山东省科学院生物研究所 | A kind of method that lactic acid cooperates with soak extraction cornstarch with hydrogen peroxide |
| CN107877941A (en) * | 2017-11-15 | 2018-04-06 | 广东松炀再生资源股份有限公司 | A kind of high moisture high-strength corrugated paper and preparation method thereof |
| CN108559003A (en) * | 2018-05-15 | 2018-09-21 | 黑龙江省农业科学院食品加工研究所 | A kind of energy saving, emission reduction, efficient cornstarch processing method |
| FR3102176B1 (en) * | 2019-10-18 | 2021-10-15 | Roquette Freres | CORN STEEP SOLUBLE |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2546686B2 (en) * | 1987-09-09 | 1996-10-23 | 三和興産株式会社 | Purification method of starch emulsion |
| CN1149058A (en) * | 1995-10-25 | 1997-05-07 | 杜翎 | Process for producing corn starch by alkali immersion to remove seed-skin and wet milling |
| CN101824092A (en) * | 2009-06-30 | 2010-09-08 | 山东福田糖醇有限公司 | Soaking technology for preparing corn starch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6899910B2 (en) * | 2003-06-12 | 2005-05-31 | The United States Of America As Represented By The Secretary Of Agriculture | Processes for recovery of corn germ and optionally corn coarse fiber (pericarp) |
-
2010
- 2010-10-13 CN CN 201010511910 patent/CN102443069B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2546686B2 (en) * | 1987-09-09 | 1996-10-23 | 三和興産株式会社 | Purification method of starch emulsion |
| CN1149058A (en) * | 1995-10-25 | 1997-05-07 | 杜翎 | Process for producing corn starch by alkali immersion to remove seed-skin and wet milling |
| CN101824092A (en) * | 2009-06-30 | 2010-09-08 | 山东福田糖醇有限公司 | Soaking technology for preparing corn starch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102443069A (en) | 2012-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102443069B (en) | Corn processing method | |
| Kringel et al. | Methods for the extraction of roots, tubers, pulses, pseudocereals, and other unconventional starches sources: a review | |
| RU2717097C2 (en) | Method and apparatus for forming lignin fraction, lignin composition and use thereof | |
| CN106223094A (en) | Mixed pulp paper technology | |
| CN1494833A (en) | Method for extracting pea powder composition | |
| CN100340577C (en) | Method for extracting refinery edible starch from acron nuts | |
| CN104498560A (en) | Liquefaction process and liquefaction equipment of glucose syrup | |
| JP5112992B2 (en) | Method for producing rice starch | |
| CN109706768B (en) | Method for extracting papermaking fiber from vinasse | |
| CN100410445C (en) | Dry feed preparation method for grass material | |
| CN104098706A (en) | Corn starch preparation method | |
| CN108976304A (en) | A kind of acorn starch and its preparation method and application | |
| CN108559003A (en) | A kind of energy saving, emission reduction, efficient cornstarch processing method | |
| CN102453098B (en) | Preparation method of corn starch | |
| CN104098707A (en) | Manufacturing technology for corn starch | |
| CN103141789A (en) | Manufacturing method of konjaku flours | |
| CN103059145A (en) | Method for producing corn protein powder | |
| CN107619842A (en) | A kind of method of Production by Enzymes cornstarch | |
| US2556322A (en) | Method of producing starch | |
| CN108148142B (en) | Ultrasonic-assisted corn starch extraction method | |
| CN106632581A (en) | Multilayer separation and refining method for straw components | |
| CN104275219A (en) | Corn pre-processing method and method for preparing feed through corns | |
| CN102690360B (en) | Preparation method of corn starch | |
| CN112493496A (en) | Method for preparing dietary fiber by using bean dregs | |
| CN112745396A (en) | Fiber washing process for reducing powder content of fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20171013 |