CN102372783A - Corn processing method - Google Patents
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- CN102372783A CN102372783A CN2010102559553A CN201010255955A CN102372783A CN 102372783 A CN102372783 A CN 102372783A CN 2010102559553 A CN2010102559553 A CN 2010102559553A CN 201010255955 A CN201010255955 A CN 201010255955A CN 102372783 A CN102372783 A CN 102372783A
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Abstract
The invention provides a corn processing method which comprises the following steps of: allowing dry corn grains to contact with water for 6-8 hours to obtain pretreated corn; (1) allowing the pretreated corn grains to contact with a sulfurous acid aqueous solution at the concentration of 0.1-0.5wt% for 4-6 hours to obtain a second solid component and a second liquid component after the contact with the pretreated corn; (2) allowing the dry corn grains to contact with the second liquid component for 6-8 hours to obtain a first solid component and a first liquid component after the contact with the dry corn grains; (3) allowing the second solid component obtained from step (1) to contact with the first liquid component for 20-24 hours, and carrying out solid-liquid separation to obtain a third solid component; and (4) replacing the pretreated corn obtained from step (1) with the first solid component obtained from step (2). The method provided by the invention requires short immersion time, therefore substantially raising the production efficiency.
Description
Technical field
The present invention relates to the corn deep processing field, relate to a kind of treatment process of corn particularly.
Background technology
W-Gum is the raw material that is widely used in corn deep processing industries such as feed, Dian Fentang, and China is starch and Dian Fentang big producing country, and wherein the Dian Fentang YO 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 influences yield and the quality and the production cost of finished product of starch and other sub products in the processing.
Traditional technique for soaking corn adopts sulfurous acid under 45-55 ℃ temperature; Mode with adverse current contacts immersion with corn; So-called " adverse current " is meant that corn soaks in a plurality of steeping tanks that are communicated with successively; Immersion degree (soak time) by the corn in each steeping tank of an end to the other end raises successively, and sulfurous acid is got into by the steeping tank of immersion degree the highest (soak time is the longest), flows to the steeping tank that the immersion degree reduces successively; Up to the steeping tank that is used to soak fresh corn (soak time is 0), the problem that this immersion way exists is that soak time is grown (more than 56 hours).
Therefore, press for the method for the short processing corn of a kind of soak time of exploitation.
Summary of the invention
The objective of the invention is to overcome the long defective of soak time that the existing method that is used to handle corn exists, a kind of corn processing methods that can shorten soak time effectively is provided.
Contriver of the present invention has carried out careful research to the treating processes of corn; Be in the water-swelling phase in about 0-8 hour that the discovery corn soaks in immersion process; Interior during this period of time sulfurous acid is little to the influence of corn soaking, and sulfurous acid plays very big influence to immersion in about 8-12 hour soaking, after during this period of time; The effect of sulfurous acid weakens gradually, and the lactic acid that soaking corn is produced after soaking about 12 hours plays very important effect in immersion.And existing corn soaking method employing is the mode of adverse current; Soak solution when fresh corn closes to an end with immersion contacts (sulfurous acid of lower aq and the lactic acid of high level), and is about to soak the corn of end and fresh soak solution (sulfurous acid of high level contains lactic acid hardly) contact; In this case; The action time of sulfurous acid and lactic acid, not corresponding with the soak time of corn, thus cause soaking the effect long soaking time.
Based on this discovery, the invention provides a kind of immersion process of corn, wherein, this method comprises: dried corn particle is contacted 6-8 hour with water, carry out solid-liquid separation, obtain through pretreated corn;
(1) will be that the sulfurous acid aqueous solution of 0.1-0.5 weight % contacts 4-6 hour through pretreated corn particle and concentration, obtain second solid ingredient, and obtain and second liquid ingredient after pretreated corn contacts;
(2) dried corn particle is contacted 6-8 hour with second liquid ingredient, obtain first solid ingredient, and obtain and first liquid ingredient after dried corn particle contacts;
(3) step (1) gained second solid ingredient is contacted 20-32 hour with first liquid ingredient, obtain the 3rd solid ingredient;
(4) with in the first solid ingredient replacement step (1) in the step (2) through pretreated corn.
In the corn processing methods provided by the invention; Because in the contact process of corn and soak solution; Through controlling sulfurous acid and the content of lactic acid in the different soak time sections place soak solution; Make the impregnation stage of sulfurous acid and lactic acid action time and corn adapt, thereby shortened the time that corn is handled greatly.
Embodiment
The invention provides a kind of immersion process of corn, wherein, this method comprises: dried corn particle is contacted 6-8 hour with water, obtain through pretreated corn;
(1) will be that the sulfurous acid aqueous solution of 0.1-0.5 weight % contacts 4-6 hour through pretreated corn particle and concentration, obtain second solid ingredient, and obtain and second liquid ingredient after pretreated corn contacts;
(2) dried corn particle is contacted 6-8 hour with second liquid ingredient, obtain first solid ingredient, and obtain and first liquid ingredient after dried corn particle contacts;
(3) step (1) gained second solid ingredient is contacted 20-32 hour with first liquid ingredient, obtain the 3rd solid ingredient;
(4) with in the first solid ingredient replacement step (1) in the step (2) through pretreated corn.
A kind of preferred embodiment in, said method comprises that also repeating step (1) is to (4).
According to the present invention, the water cut of said dried corn particle can in very large range change, and under the preferable case, the water cut of said dried corn particle is 14-16 weight %.
Among the present invention; Dried corn particle can contact with water; Because corn is in the water-swelling phase about about 0-8 hour, sulfurous acid is considered the cycling use of water of technical process to the corn restraining effect that absorbed water; Can use second liquid ingredient (sulfurous acid concentration is lower, and is less to the restraining effect of water) replacement water so that dried corn is handled.
In a kind of preferred implementation of the present invention; The said mode that dried corn particle is contacted with water is for soaking, and the condition of said immersion can in very large range change, preferably; The temperature of soaking can be 45-55 ℃, and the liquid level of water is higher than at least 10 centimetres of dried corn particles.
In another kind of preferred implementation of the present invention; The way of contact in the said step (1) is for soaking, and the condition of said immersion can in very large range change, preferably; The temperature of soaking is 45-55 ℃, and the liquid level of the said sulfurous acid aqueous solution is higher than at least 10 centimetres of corn particles.Preferably, method of the present invention also comprises: in the process that step (1) is soaked, additional concentration is that the sulfurous acid aqueous solution of 0.1-0.5 weight % is to keep liquid level.
In another kind of preferred implementation of the present invention; The way of contact in the said step (2) is for soaking, and the condition of said immersion can in very large range change, preferably; The temperature of soaking is 45-55 ℃, and the liquid level of said second liquid ingredient is higher than at least 10 centimetres of corn particles.Preferably, method of the present invention also comprises: in the process that step (2) is soaked, second liquid ingredient in the step (1) is incorporated in the step (2), to keep liquid level.
In another kind of preferred implementation of the present invention; The way of contact in the said step (3) is for soaking, and the condition of said immersion can in very large range change, preferably; The temperature of soaking is 45-55 ℃, and the liquid level of said first liquid ingredient is higher than at least 10 centimetres of second solid ingredients.Preferably, method of the present invention also comprises: in the process that step (3) is soaked, first liquid ingredient in the step (2) is incorporated in the step (3), to keep liquid level.
According to the present invention, the equipment that soaking corn adopted is conventionally known to one of skill in the art, for example; Can in a plurality of steeping tanks, soak corn; After soaking end, the liquid in the steeping tank is discharged, according to the concrete steps of method provided by the invention; Can optionally the soak solution of discharging be transferred in the used steeping tank of next soaking step the final immersion of accomplishing corn.
Through concrete embodiment the present invention is described in more details below.
Embodiment 1
(1) 10 tons of dried corns (water cut is 15 weight %) are placed steeping tank A, and introduce water corn is soaked, the temperature of immersion is 50 ℃, and the time of immersion is 8 hours, and the introducing amount of water makes liquid level be higher than 10 centimetres of corn particles;
(2) in steeping tank A, introducing concentration is the sulfurous acid aqueous solution of 0.1 weight %; With the water that is used to soak in the displacement step (1); Corn among the steeping tank A (through pretreated corn) is soaked; The temperature of soaking is 50 ℃, and the time of immersion is 4 hours, and the introducing amount of the sulfurous acid aqueous solution of 0.1 weight % makes liquid level be higher than 10 centimetres of corn particles (water that is used to soak in the step (1) is by displacement fully); In immersion process, constantly replenishing concentration is the sulfurous acid aqueous solution of 0.1 weight %, and to keep liquid level, immersion obtains second solid ingredient after finishing;
(3) 10 tons of dried corns (water cut is 15 weight %) are placed steeping tank B; And second liquid ingredient of introducing steeping tank A discharge soaks corn; The temperature of soaking is 50 ℃, and the time of immersion is 8 hours, and the introducing amount of second liquid ingredient makes liquid level be higher than 10 centimetres of corn particles; In immersion process, constantly replenish from the soak solution (second liquid ingredient) among the steeping tank A in the step (2), to keep liquid level;
(4) soak solution among the steeping tank B (first liquid ingredient) is incorporated among the steeping tank A that accomplishes immersion in the step (2),, the corn among the steeping tank A (second solid ingredient) is soaked to replace second liquid ingredient; The temperature of soaking is 50 ℃; The time of soaking is 24 hours, and the introducing amount of first liquid ingredient makes liquid level be higher than 10 centimetres of corn particles (second liquid ingredient that is used to soak in the step (2) is by displacement fully), in immersion process, constantly replenishes from the soak solution (first liquid ingredient) among the steeping tank B in the step (3); To keep liquid level; After soaking end, discharge soak solution, obtain soaked corn (the 3rd solid ingredient) A1.
Comparative Examples 1
Add 10 tons of dried corns (water cut is 15 weight %) respectively in totally 9 steeping tanks at steeping tank A-I, wherein, steeping tank A-I series connection is communicated with successively; Corn in each steeping tank carries out the immersion in 9 cycles; In each cycle, the time of immersion is 8 hours, and the temperature of immersion is 50 ℃; The liquid level of soak solution is higher than 10 centimetres of corn particles, and concrete steps are:
(1) in steeping tank A, introduces soak solution (the sulfurous acid aqueous solution of 0.1 weight %), and the dried corn among the steeping tank A is carried out 8 hours immersion;
(2) first soak cycle among the steeping tank A finishes back (8 hours); The sulfurous acid aqueous solution of in steeping tank A, introducing 0.1 weight % is with the soak solution after first soak cycle finishes among the displacement steeping tank A; Thereby make steeping tank A enter into second soak cycle (8 hours); Simultaneously the mid-soak solution that swaps out of steeping tank A is incorporated among the steeping tank B, the corn among the steeping tank B is carried out the immersion in first cycle;
(3) second soak cycle among the steeping tank A finishes back (8 hours); The sulfurous acid aqueous solution of in steeping tank A, introducing 0.1 weight % is with the soak solution after second soak cycle finishes among the displacement steeping tank A; Thereby make steeping tank A enter into the 3rd soak cycle (8 hours); Simultaneously the mid-soak solution that swaps out of steeping tank A is incorporated among the steeping tank B; Corn among the steeping tank B is carried out the immersion of second period, simultaneously the mid-soak solution that swaps out of steeping tank B is incorporated among the steeping tank C, the corn among the steeping tank C is carried out the immersion in first cycle;
(4) the 3rd soak cycle among the steeping tank A finishes back (8 hours); The sulfurous acid aqueous solution of in steeping tank A, introducing 0.1 weight % is with the soak solution after the 3rd soak cycle finishes among the displacement steeping tank A; Thereby make steeping tank A enter into the 4th soak cycle (8 hours); Simultaneously the mid-soak solution that swaps out of steeping tank A is incorporated among the steeping tank B; Corn among the steeping tank B is carried out the immersion in the 3rd cycle, simultaneously the mid-soak solution that swaps out of steeping tank B is incorporated among the steeping tank C, the corn among the steeping tank C is carried out the immersion of second period; Simultaneously the mid-soak solution that swaps out of steeping tank C is incorporated among the steeping tank D, the corn among the steeping tank D is carried out the immersion in first cycle;
(5) the 4th soak cycle among the steeping tank A finishes back (8 hours); The sulfurous acid aqueous solution of in steeping tank A, introducing 0.1 weight % is with the soak solution after the 4th soak cycle finishes among the displacement steeping tank A; Thereby make steeping tank A enter into the 5th soak cycle (8 hours); Simultaneously the mid-soak solution that swaps out of steeping tank A is incorporated among the steeping tank B; Corn among the steeping tank B is carried out the immersion in the 4th cycle, simultaneously the mid-soak solution that swaps out of steeping tank B is incorporated among the steeping tank C, the corn among the steeping tank C is carried out the immersion in the 3rd cycle; Simultaneously the mid-soak solution that swaps out of steeping tank C is incorporated among the steeping tank D, the corn among the steeping tank D is carried out the immersion of second period; Simultaneously the mid-soak solution that swaps out of steeping tank D is incorporated among the steeping tank E, the corn among the steeping tank E is carried out the immersion in first cycle;
(6) the 5th soak cycle among the steeping tank A finishes back (8 hours); The sulfurous acid aqueous solution of in steeping tank A, introducing 0.1 weight % is with the soak solution after the 5th soak cycle finishes among the displacement steeping tank A; Thereby make steeping tank A enter into the 6th soak cycle (8 hours); Simultaneously the mid-soak solution that swaps out of steeping tank A is incorporated among the steeping tank B; Corn among the steeping tank B is carried out the immersion in the 5th cycle, simultaneously the mid-soak solution that swaps out of steeping tank B is incorporated among the steeping tank C, the corn among the steeping tank C is carried out the immersion in the 4th cycle; Simultaneously the mid-soak solution that swaps out of steeping tank C is incorporated among the steeping tank D, the corn among the steeping tank D is carried out the immersion in the 3rd cycle; Simultaneously the mid-soak solution that swaps out of steeping tank D is incorporated among the steeping tank E, the corn among the steeping tank E is carried out the immersion of second period; Simultaneously the mid-soak solution that swaps out of steeping tank E is incorporated among the steeping tank F, the corn among the steeping tank F is carried out the immersion in first cycle;
(7) the 6th soak cycle among the steeping tank A finishes back (8 hours); The sulfurous acid aqueous solution of in steeping tank A, introducing 0.1 weight % is with the soak solution after the 6th soak cycle finishes among the displacement steeping tank A; Thereby make steeping tank A enter into the 7th soak cycle (8 hours); Simultaneously the mid-soak solution that swaps out of steeping tank A is incorporated among the steeping tank B; Corn among the steeping tank B is carried out the immersion in the 6th cycle, simultaneously the mid-soak solution that swaps out of steeping tank B is incorporated among the steeping tank C, the corn among the steeping tank C is carried out the immersion in the 5th cycle; Simultaneously the mid-soak solution that swaps out of steeping tank C is incorporated among the steeping tank D, the corn among the steeping tank D is carried out the immersion in the 4th cycle; Simultaneously the mid-soak solution that swaps out of steeping tank D is incorporated among the steeping tank E, the corn among the steeping tank E is carried out the immersion in the 3rd cycle; Simultaneously the mid-soak solution that swaps out of steeping tank E is incorporated among the steeping tank F, the corn among the steeping tank F is carried out the immersion of second period; Simultaneously the mid-soak solution that swaps out of steeping tank F is incorporated among the steeping tank G, the corn among the steeping tank G is carried out the immersion in first cycle;
(8) the 7th soak cycle among the steeping tank A finishes back (8 hours); The sulfurous acid aqueous solution of in steeping tank A, introducing 0.1 weight % is with the soak solution after the 7th soak cycle finishes among the displacement steeping tank A; Thereby make steeping tank A enter into the 8th soak cycle (8 hours); Simultaneously the mid-soak solution that swaps out of steeping tank A is incorporated among the steeping tank B; Corn among the steeping tank B is carried out the immersion in the 7th cycle, simultaneously the mid-soak solution that swaps out of steeping tank B is incorporated among the steeping tank C, the corn among the steeping tank C is carried out the immersion in the 6th cycle; Simultaneously the mid-soak solution that swaps out of steeping tank C is incorporated among the steeping tank D, the corn among the steeping tank D is carried out the immersion in the 5th cycle; Simultaneously the mid-soak solution that swaps out of steeping tank D is incorporated among the steeping tank E, the corn among the steeping tank E is carried out the immersion in the 4th cycle; Simultaneously the mid-soak solution that swaps out of steeping tank E is incorporated among the steeping tank F, the corn among the steeping tank F is carried out the immersion in the 3rd cycle; Simultaneously the mid-soak solution that swaps out of steeping tank G is incorporated among the steeping tank F, the corn among the steeping tank G is carried out the immersion of second period; Simultaneously the mid-soak solution that swaps out of steeping tank G is incorporated among the steeping tank H, the corn among the steeping tank H is carried out the immersion in first cycle;
(9) the 8th soak cycle among the steeping tank A finishes back (8 hours); The sulfurous acid aqueous solution of in steeping tank A, introducing 0.1 weight % is with the soak solution after the 8th soak cycle finishes among the displacement steeping tank A; Thereby make steeping tank A enter into the 9th soak cycle (8 hours); Simultaneously the mid-soak solution that swaps out of steeping tank A is incorporated among the steeping tank B; Corn among the steeping tank B is carried out the immersion in the 8th cycle, simultaneously the mid-soak solution that swaps out of steeping tank B is incorporated among the steeping tank C, the corn among the steeping tank C is carried out the immersion in the 7th cycle; Simultaneously the mid-soak solution that swaps out of steeping tank C is incorporated among the steeping tank D, the corn among the steeping tank D is carried out the immersion in the 5th cycle; Simultaneously the mid-soak solution that swaps out of steeping tank D is incorporated among the steeping tank E, the corn among the steeping tank E is carried out the immersion in the 4th cycle; Simultaneously the mid-soak solution that swaps out of steeping tank E is incorporated among the steeping tank F, the corn among the steeping tank F is carried out the immersion in the 3rd cycle; Simultaneously the mid-soak solution that swaps out of steeping tank F is incorporated among the steeping tank G, the corn among the steeping tank G is carried out the immersion of second period; Simultaneously the mid-soak solution that swaps out of steeping tank H is incorporated among the steeping tank I, the corn among the steeping tank I is carried out the immersion in first cycle;
(10) after steeping tank A accomplishes the immersion in 9 cycles; Solid-liquid separation obtains soaked corn C A1; The sulfurous acid aqueous solution that directly in steeping tank B, adds 0.1 weight % afterwards is as soak solution, and the immersion with the 9th cycle of accomplishing steeping tank B obtains soaked corn C A2 after the solid-liquid separation; And the soak solution after the 9th cycle among the steeping tank B soaked is incorporated among the steeping tank C, to accomplish the 8th soak cycle among the steeping tank C; By that analogy; Accomplish the immersion in whole 9 cycles when previous steeping tank after; The sulfurous acid aqueous solution that directly adds 0.1 weight % in the steeping tank backward is as soak solution, thereby makes the corn among the steeping tank C-I all accomplish the immersion in 9 cycles, obtains soaked corn C A3-CA9 respectively.
Comparative Examples 2
Add 10 tons of dried corns (water cut is 15 weight %) respectively in totally 8 steeping tanks at steeping tank A-H, wherein, steeping tank A-I series connection is communicated with successively; Corn in each steeping tank carries out the immersion in 8 cycles, and in each cycle in cycle, the time of immersion is 8 hours; The temperature of soaking is 50 ℃; The liquid level of soak solution is higher than 10 centimetres of corn particles, and concrete steps are identical with Comparative Examples 1 with condition, obtain soaked corn C A10-CA17.
Embodiment 2
(1) 10 tons of dried corns (water cut is 15 weight %) are placed steeping tank A, and introduce water corn is soaked, the temperature of immersion is 55 ℃, and the time of immersion is 7 hours, and the introducing amount of water makes liquid level be higher than 15 centimetres of corn particles;
(2) in steeping tank A, introducing concentration is the sulfurous acid aqueous solution of 0.2 weight %; With the water that is used to soak in the displacement step (1); Corn among the steeping tank A (through pretreated corn) is soaked; The temperature of soaking is 55 ℃, and the time of immersion is 5 hours, and the introducing amount of the sulfurous acid aqueous solution of 0.2 weight % makes liquid level be higher than 15 centimetres of corn particles (water that is used to soak in the step (1) is by displacement fully); In immersion process, constantly replenishing concentration is the sulfurous acid aqueous solution of 0.2 weight %, and to keep liquid level, immersion obtains second solid ingredient after finishing;
(3) 10 tons of dried corns (water cut is 15 weight %) are placed steeping tank B; And second liquid ingredient of introducing steeping tank A discharge soaks corn; The temperature of soaking is 55 ℃, and the time of immersion is 7 hours, and the introducing amount of second liquid ingredient makes liquid level be higher than 15 centimetres of corn particles; In immersion process, constantly replenish from the soak solution (second liquid ingredient) among the steeping tank A in the step (2), to keep liquid level;
(4) soak solution among the steeping tank B (first liquid ingredient) is incorporated among the steeping tank A that accomplishes immersion in the step (2),, the corn among the steeping tank A (second solid ingredient) is soaked to replace second liquid ingredient; The temperature of soaking is 55 ℃; The time of soaking is 32 hours, and the introducing amount of first liquid ingredient makes liquid level be higher than 15 centimetres of corn particles (second liquid ingredient that is used to soak in the step (2) is by displacement fully), in immersion process, constantly replenishes from the soak solution (first liquid ingredient) among the steeping tank B in the step (3); To keep liquid level; After soaking end, discharge soak solution, obtain soaked corn (the 3rd solid ingredient) A2.
Embodiment 3
(1) 10 tons of dried corns (water cut is 15 weight %) are placed steeping tank A, and introduce water corn is soaked, the temperature of immersion is 45 ℃, and the time of immersion is 6 hours, and the introducing amount of water makes liquid level be higher than 12 centimetres of corn particles;
(2) in steeping tank A, introducing concentration is the sulfurous acid aqueous solution of 0.3 weight %; With the water that is used to soak in the displacement step (1); Corn among the steeping tank A (through pretreated corn) is soaked; The temperature of soaking is 45 ℃, and the time of immersion is 4 hours, and the introducing amount of the sulfurous acid aqueous solution of 0.3 weight % makes liquid level be higher than 12 centimetres of corn particles (water that is used to soak in the step (1) is by displacement fully); In immersion process, constantly replenishing concentration is the sulfurous acid aqueous solution of 0.3 weight %, and to keep liquid level, immersion obtains second solid ingredient after finishing;
(3) 10 tons of dried corns (water cut is 15 weight %) are placed steeping tank B; And second liquid ingredient of introducing steeping tank A discharge soaks corn; The temperature of soaking is 45 ℃, and the time of immersion is 8 hours, and the introducing amount of second liquid ingredient makes liquid level be higher than 12 centimetres of corn particles; In immersion process, constantly replenish from the soak solution (second liquid ingredient) among the steeping tank A in the step (2), to keep liquid level;
(4) soak solution among the steeping tank B (first liquid ingredient) is incorporated among the steeping tank A that accomplishes immersion in the step (2),, the corn among the steeping tank A (second solid ingredient) is soaked to replace second liquid ingredient; The temperature of soaking is 45 ℃; The time of soaking is 28 hours, and the introducing amount of first liquid ingredient makes liquid level be higher than 12 centimetres of corn particles (second liquid ingredient that is used to soak in the step (2) is by displacement fully), in immersion process, constantly replenishes from the soak solution (first liquid ingredient) among the steeping tank B in the step (3); To keep liquid level; After soaking end, discharge soak solution, obtain soaked corn (the 3rd solid ingredient) A3.
Embodiment 4-6
Record total reducing sugar, starch content=0.9 * total reducing sugar through GBT 15038-2006 total reducing sugar direct titrimetric method respectively.Detect and soak contents of starch among the soaked corn A1-A3 that obtains after the end among the embodiment 1-3 in the step (4), said contents of starch is meant that starch consolidating in corn contains the weight percent in the thing, and the result is as shown in table 1.
Comparative Examples 3-4
According to the method identical with embodiment 4-6, contents of starch among the soaked reference corn C A1-CA17 in the detection Comparative Examples 1 and 2, the result is as shown in table 1.
Table 1
Can find out from the data of last table; Guaranteeing to make under the starch content condition with higher of soaked corn (about 70 weight %); The treatment process of corn provided by the invention can reduce the time that corn soaking is handled significantly; Thereby improved production efficiency significantly, this can cut down the consumption of energy in suitability for industrialized production significantly, has important economic value.
Claims (10)
1. the treatment process of a corn, wherein, this method comprises: dried corn particle is contacted 6-8 hour with water, obtain through pretreated corn;
(1) will be that the sulfurous acid aqueous solution of 0.1-0.5 weight % contacts 4-6 hour through pretreated corn particle and concentration, obtain second solid ingredient, and obtain and second liquid ingredient after pretreated corn contacts;
(2) dried corn particle is contacted 6-8 hour with second liquid ingredient, obtain first solid ingredient, and obtain and first liquid ingredient after dried corn particle contacts;
(3) step (1) gained second solid ingredient is contacted 20-32 hour with first liquid ingredient, obtain the 3rd solid ingredient;
(4) with in the first solid ingredient replacement step (1) in the step (2) through pretreated corn.
2. treatment process according to claim 1, wherein, repeating step (1) is to (4).
3. treatment process according to claim 1, wherein, the said mode that dried corn particle is contacted with water is for soaking, and the temperature of immersion is 45-55 ℃, and the liquid level of water is higher than at least 10 centimetres of dried corn particles.
4. treatment process according to claim 1, wherein, the way of contact in the said step (1) is for soaking, and the temperature of immersion is 45-55 ℃, and the liquid level of the said sulfurous acid aqueous solution is higher than at least 10 centimetres of corn particles.
5. treatment process according to claim 4, wherein, this method also comprises: in the process that step (1) is soaked, additional concentration is that the sulfurous acid aqueous solution of 0.1-0.5 weight % is to keep liquid level.
6. treatment process according to claim 1, wherein, the way of contact in the said step (2) is for soaking, and the temperature of immersion is 45-55 ℃, and the liquid level of said second liquid ingredient is higher than at least 10 centimetres of corn particles.
7. treatment process according to claim 6, wherein, this method also comprises: in the process that step (2) is soaked, second liquid ingredient in the step (1) is incorporated in the step (2), to keep the liquid level in the step (2).
8. treatment process according to claim 1, wherein, the way of contact in the said step (3) is for soaking, and the temperature of immersion is 45-55 ℃, and the liquid level of said first liquid ingredient is higher than at least 10 centimetres of second solid ingredients.
9. treatment process according to claim 8, wherein, this method also comprises: in the process that step (3) is soaked, first liquid ingredient in the step (2) is incorporated in the step (3), to keep the liquid level in the step (3).
10. treatment process according to claim 1, wherein, the water cut of said dried corn particle is 14-26 weight %.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010255955 CN102372783B (en) | 2010-08-13 | 2010-08-13 | Corn processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010255955 CN102372783B (en) | 2010-08-13 | 2010-08-13 | Corn processing method |
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| CN102372783A true CN102372783A (en) | 2012-03-14 |
| CN102372783B CN102372783B (en) | 2013-04-03 |
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| CN 201010255955 Active CN102372783B (en) | 2010-08-13 | 2010-08-13 | Corn processing method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044234A (en) * | 1989-01-17 | 1990-08-01 | 多尔-奥利费公司 | Corn steeping process and equipment |
| EP1405864A1 (en) * | 2002-09-27 | 2004-04-07 | Corn Products International, Inc. | Process for decreasing the reducing sugars content of light steepwater |
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2010
- 2010-08-13 CN CN 201010255955 patent/CN102372783B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044234A (en) * | 1989-01-17 | 1990-08-01 | 多尔-奥利费公司 | Corn steeping process and equipment |
| EP1405864A1 (en) * | 2002-09-27 | 2004-04-07 | Corn Products International, Inc. | Process for decreasing the reducing sugars content of light steepwater |
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| CN102372783B (en) | 2013-04-03 |
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