CN102372783B - Corn processing method - Google Patents
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- CN102372783B CN102372783B CN 201010255955 CN201010255955A CN102372783B CN 102372783 B CN102372783 B CN 102372783B CN 201010255955 CN201010255955 CN 201010255955 CN 201010255955 A CN201010255955 A CN 201010255955A CN 102372783 B CN102372783 B CN 102372783B
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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 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 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 " refers to that corn soaks in a plurality of steeping tanks that are communicated with successively, immersion degree (soak time) by the corn of an end to each steeping tank of the other end raises successively, sulfurous acid is entered by the steeping tank of immersion degree the highest (soak time is the longest), flow to the steeping tank that the immersion degree reduces successively, until be used for soaking the steeping tank (soak time is 0) of fresh corn, the problem that this immersion way exists is that soak time is grown (more than 56 hours).
Therefore, in the urgent need to developing the method for the short processing corn of a kind of soak time.
Summary of the invention
The object of the invention is to overcome the existing long defective of soak time that exists for the treatment of the method for corn, a kind of corn processing methods that can effectively shorten soak time is provided.
The present inventor 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 sulfurous acid is little on the impact of corn soaking during this period of time, and sulfurous acid plays very large impact to immersion in about 8-12 hour soaking, after surpassing during this period of time, the effect of sulfurous acid weakens gradually, and the lactic acid that soaking corn produces 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 the corn that soon immersion finishes and the fresh soak solution (sulfurous acid of high level, contain hardly lactic acid) 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, the method comprises: dried corn particle is contacted 6-8 hour with water, carry out solid-liquid separation, obtain pretreated corn;
(1) is that the sulfurous acid aqueous solution of 0.1-0.5 % by weight contacts 4-6 hour with pretreated corn particle and concentration, obtains the second solid ingredient, and obtain and second liquid component after pretreated corn contacts;
(2) dried corn particle is contacted 6-8 hour with the second liquid component, obtain the first solid ingredient, and obtain and first liquid component after dried corn particle contacts;
(3) step (1) gained the second solid ingredient is contacted 20-32 hour with the first liquid component, obtain the 3rd solid ingredient;
(4) with pretreated corn in the first solid ingredient replacement step (1) in the step (2).
In the corn processing methods provided by the invention, because in the contact process of corn and soak solution, by controlling sulfurous acid in the different soak time sections place soak solution and the content of lactic acid, so that the impregnation stage of sulfurous acid and lactic acid action time and corn adapts, thereby greatly shortened the time that corn is processed.
Embodiment
The invention provides a kind of immersion process of corn, wherein, the method comprises: dried corn particle is contacted 6-8 hour with water, obtain pretreated corn;
(1) is that the sulfurous acid aqueous solution of 0.1-0.5 % by weight contacts 4-6 hour with pretreated corn particle and concentration, obtains the second solid ingredient, and obtain and second liquid component after pretreated corn contacts;
(2) dried corn particle is contacted 6-8 hour with the second liquid component, obtain the first solid ingredient, and obtain and first liquid component after dried corn particle contacts;
(3) step (1) gained the second solid ingredient is contacted 20-32 hour with the first liquid component, obtain the 3rd solid ingredient;
(4) with pretreated corn in the first solid ingredient replacement step (1) in the step (2).
A kind of preferred embodiment in, described method comprises that also repeating step (1) is to (4).
According to the present invention, the water content of described dried corn particle can in very large range change, and under the preferable case, the water content of described dried corn particle is the 14-16 % by 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 to the corn restraining effect that absorbed water, consider the cycling use of water of technical process, can use second liquid component (sulfurous acid concentration is lower, and is less to the restraining effect of water) to replace water so that dried corn is processed.
In a kind of preferred implementation of the present invention, the described mode that dried corn particle is contacted with water is for soaking, and the condition of described 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 described step (1) is for soaking, and the condition of described immersion can in very large range change, preferably, the temperature of soaking is 45-55 ℃, and the liquid level of the described 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 % by weight is to keep liquid level.
In another kind of preferred implementation of the present invention, the way of contact in the described step (2) is for soaking, and the condition of described immersion can in very large range change, preferably, the temperature of soaking is 45-55 ℃, and the liquid level of described second liquid component 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, the second liquid component 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 described step (3) is for soaking, and the condition of described immersion can in very large range change, preferably, the temperature of soaking is 45-55 ℃, and the liquid level of described first liquid component is higher than at least 10 centimetres of the second solid ingredients.Preferably, method of the present invention also comprises: in the process that step (3) is soaked, the first liquid component in the step (2) is incorporated in the step (3), to keep liquid level.
According to the present invention, the equipment that soaking corn adopts 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, finally finish the immersion to corn.
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 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) introducing concentration in the steeping tank A is the sulfurous acid aqueous solution of 0.1 % by weight, with the water that is used in the displacement step (1) soaking, corn among the steeping tank A (pretreated corn) is soaked, the temperature of soaking is 50 ℃, the time of soaking is 4 hours, and the introducing amount of the sulfurous acid aqueous solution of 0.1 % by weight makes liquid level be higher than 10 centimetres of corn particles (water that is used in the step (1) soaking is replaced fully); Constantly replenishing concentration in immersion process is the sulfurous acid aqueous solution of 0.1 % by weight, and to keep liquid level, immersion obtains the second solid ingredient after finishing;
(3) 10 tons of dried corns (water content is 15 % by weight) are placed steeping tank B, and the second liquid component of introducing steeping tank A discharge is soaked corn, the temperature of soaking is 50 ℃, the time of soaking is 8 hours, the introducing amount of second liquid component makes liquid level be higher than 10 centimetres of corn particles, in immersion process, constantly replenish from the soak solution (second liquid component) among the steeping tank A in the step (2), to keep liquid level;
(4) soak solution among the steeping tank B (first liquid component) is incorporated among the steeping tank A that finishes immersion in the step (2), with displacement second liquid component, corn among the steeping tank A (the second solid ingredient) is soaked, the temperature of soaking is 50 ℃, the time of soaking is 24 hours, the introducing amount of first liquid component makes liquid level be higher than 10 centimetres of corn particles (the second liquid component that is used in the step (2) soaking is replaced fully), in immersion process, constantly replenish from the soak solution (first liquid component) 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 respectively 10 tons of dried corns (water content is 15 % by weight) 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 % by weight), and the dried corn among the steeping tank A is carried out 8 hours immersion;
(2) after first soak cycle among the steeping tank A finishes (8 hours), in steeping tank A, introduce the sulfurous acid aqueous solution of 0.1 % by weight 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), soak solution with steeping tank A displacing is incorporated among the steeping tank B simultaneously, the corn among the steeping tank B is carried out the immersion in first cycle;
(3) after second soak cycle among the steeping tank A finishes (8 hours), in steeping tank A, introduce the sulfurous acid aqueous solution of 0.1 % by weight 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), soak solution with steeping tank A displacing is incorporated among the steeping tank B simultaneously, corn among the steeping tank B is carried out the immersion of second period, soak solution with steeping tank B displacing is incorporated among the steeping tank C simultaneously, the corn among the steeping tank C is carried out the immersion in first cycle;
(4) after the 3rd soak cycle among the steeping tank A finishes (8 hours), in steeping tank A, introduce the sulfurous acid aqueous solution of 0.1 % by weight 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), soak solution with steeping tank A displacing is incorporated among the steeping tank B simultaneously, corn among the steeping tank B is carried out the immersion in the 3rd cycle, soak solution with steeping tank B displacing is incorporated among the steeping tank C simultaneously, the corn among the steeping tank C is carried out the immersion of second period; Soak solution with steeping tank C displacing is incorporated among the steeping tank D simultaneously, the corn among the steeping tank D is carried out the immersion in first cycle;
(5) after the 4th soak cycle among the steeping tank A finishes (8 hours), in steeping tank A, introduce the sulfurous acid aqueous solution of 0.1 % by weight 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), soak solution with steeping tank A displacing is incorporated among the steeping tank B simultaneously, corn among the steeping tank B is carried out the immersion in the 4th cycle, soak solution with steeping tank B displacing is incorporated among the steeping tank C simultaneously, the corn among the steeping tank C is carried out the immersion in the 3rd cycle; Soak solution with steeping tank C displacing is incorporated among the steeping tank D simultaneously, the corn among the steeping tank D is carried out the immersion of second period; Soak solution with steeping tank D displacing is incorporated among the steeping tank E simultaneously, the corn among the steeping tank E is carried out the immersion in first cycle;
(6) after the 5th soak cycle among the steeping tank A finishes (8 hours), in steeping tank A, introduce the sulfurous acid aqueous solution of 0.1 % by weight 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), soak solution with steeping tank A displacing is incorporated among the steeping tank B simultaneously, corn among the steeping tank B is carried out the immersion in the 5th cycle, soak solution with steeping tank B displacing is incorporated among the steeping tank C simultaneously, the corn among the steeping tank C is carried out the immersion in the 4th cycle; Soak solution with steeping tank C displacing is incorporated among the steeping tank D simultaneously, the corn among the steeping tank D is carried out the immersion in the 3rd cycle; Soak solution with steeping tank D displacing is incorporated among the steeping tank E simultaneously, the corn among the steeping tank E is carried out the immersion of second period; Soak solution with steeping tank E displacing is incorporated among the steeping tank F simultaneously, the corn among the steeping tank F is carried out the immersion in first cycle;
(7) after the 6th soak cycle among the steeping tank A finishes (8 hours), in steeping tank A, introduce the sulfurous acid aqueous solution of 0.1 % by weight 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), soak solution with steeping tank A displacing is incorporated among the steeping tank B simultaneously, corn among the steeping tank B is carried out the immersion in the 6th cycle, soak solution with steeping tank B displacing is incorporated among the steeping tank C simultaneously, the corn among the steeping tank C is carried out the immersion in the 5th cycle; Soak solution with steeping tank C displacing is incorporated among the steeping tank D simultaneously, the corn among the steeping tank D is carried out the immersion in the 4th cycle; Soak solution with steeping tank D displacing is incorporated among the steeping tank E simultaneously, the corn among the steeping tank E is carried out the immersion in the 3rd cycle; Soak solution with steeping tank E displacing is incorporated among the steeping tank F simultaneously, the corn among the steeping tank F is carried out the immersion of second period; Soak solution with steeping tank F displacing is incorporated among the steeping tank G simultaneously, the corn among the steeping tank G is carried out the immersion in first cycle;
(8) after the 7th soak cycle among the steeping tank A finishes (8 hours), in steeping tank A, introduce the sulfurous acid aqueous solution of 0.1 % by weight 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), soak solution with steeping tank A displacing is incorporated among the steeping tank B simultaneously, corn among the steeping tank B is carried out the immersion in the 7th cycle, soak solution with steeping tank B displacing is incorporated among the steeping tank C simultaneously, the corn among the steeping tank C is carried out the immersion in the 6th cycle; Soak solution with steeping tank C displacing is incorporated among the steeping tank D simultaneously, the corn among the steeping tank D is carried out the immersion in the 5th cycle; Soak solution with steeping tank D displacing is incorporated among the steeping tank E simultaneously, the corn among the steeping tank E is carried out the immersion in the 4th cycle; Soak solution with steeping tank E displacing is incorporated among the steeping tank F simultaneously, the corn among the steeping tank F is carried out the immersion in the 3rd cycle; Soak solution with steeping tank G displacing is incorporated among the steeping tank F simultaneously, the corn among the steeping tank G is carried out the immersion of second period; Soak solution with steeping tank G displacing is incorporated among the steeping tank H simultaneously, the corn among the steeping tank H is carried out the immersion in first cycle;
(9) after the 8th soak cycle among the steeping tank A finishes (8 hours), in steeping tank A, introduce the sulfurous acid aqueous solution of 0.1 % by weight 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), soak solution with steeping tank A displacing is incorporated among the steeping tank B simultaneously, corn among the steeping tank B is carried out the immersion in the 8th cycle, soak solution with steeping tank B displacing is incorporated among the steeping tank C simultaneously, the corn among the steeping tank C is carried out the immersion in the 7th cycle; Soak solution with steeping tank C displacing is incorporated among the steeping tank D simultaneously, the corn among the steeping tank D is carried out the immersion in the 5th cycle; Soak solution with steeping tank D displacing is incorporated among the steeping tank E simultaneously, the corn among the steeping tank E is carried out the immersion in the 4th cycle; Soak solution with steeping tank E displacing is incorporated among the steeping tank F simultaneously, the corn among the steeping tank F is carried out the immersion in the 3rd cycle; Soak solution with steeping tank F displacing is incorporated among the steeping tank G simultaneously, the corn among the steeping tank G is carried out the immersion of second period; Soak solution with steeping tank H displacing is incorporated among the steeping tank I simultaneously, the corn among the steeping tank I is carried out the immersion in first cycle;
(10) after steeping tank A finishes the immersion in 9 cycles, solid-liquid separation obtains soaked corn C A1, directly in steeping tank B, add the sulfurous acid aqueous solution of 0.1 % by weight as soak solution afterwards, immersion with the 9th cycle of finishing steeping tank B, obtain 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 finish the 8th soak cycle among the steeping tank C; By that analogy, finish the immersion in whole 9 cycles when previous steeping tank after, the sulfurous acid aqueous solution that directly adds 0.1 % by weight in the steeping tank backward is as soak solution, thereby makes the corn among the steeping tank C-I all finish the immersion in 9 cycles, obtains respectively soaked corn C A3-CA9.
Comparative Examples 2
Add respectively 10 tons of dried corns (water content is 15 % by weight) 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 content is 15 % by 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) introducing concentration in the steeping tank A is the sulfurous acid aqueous solution of 0.2 % by weight, with the water that is used in the displacement step (1) soaking, corn among the steeping tank A (pretreated corn) is soaked, the temperature of soaking is 55 ℃, the time of soaking is 5 hours, and the introducing amount of the sulfurous acid aqueous solution of 0.2 % by weight makes liquid level be higher than 15 centimetres of corn particles (water that is used in the step (1) soaking is replaced fully); Constantly replenishing concentration in immersion process is the sulfurous acid aqueous solution of 0.2 % by weight, and to keep liquid level, immersion obtains the second solid ingredient after finishing;
(3) 10 tons of dried corns (water content is 15 % by weight) are placed steeping tank B, and the second liquid component of introducing steeping tank A discharge is soaked corn, the temperature of soaking is 55 ℃, the time of soaking is 7 hours, the introducing amount of second liquid component makes liquid level be higher than 15 centimetres of corn particles, in immersion process, constantly replenish from the soak solution (second liquid component) among the steeping tank A in the step (2), to keep liquid level;
(4) soak solution among the steeping tank B (first liquid component) is incorporated among the steeping tank A that finishes immersion in the step (2), with displacement second liquid component, corn among the steeping tank A (the second solid ingredient) is soaked, the temperature of soaking is 55 ℃, the time of soaking is 32 hours, the introducing amount of first liquid component makes liquid level be higher than 15 centimetres of corn particles (the second liquid component that is used in the step (2) soaking is replaced fully), in immersion process, constantly replenish from the soak solution (first liquid component) 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 content is 15 % by 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) introducing concentration in the steeping tank A is the sulfurous acid aqueous solution of 0.3 % by weight, with the water that is used in the displacement step (1) soaking, corn among the steeping tank A (pretreated corn) is soaked, the temperature of soaking is 45 ℃, the time of soaking is 4 hours, and the introducing amount of the sulfurous acid aqueous solution of 0.3 % by weight makes liquid level be higher than 12 centimetres of corn particles (water that is used in the step (1) soaking is replaced fully); Constantly replenishing concentration in immersion process is the sulfurous acid aqueous solution of 0.3 % by weight, and to keep liquid level, immersion obtains the second solid ingredient after finishing;
(3) 10 tons of dried corns (water content is 15 % by weight) are placed steeping tank B, and the second liquid component of introducing steeping tank A discharge is soaked corn, the temperature of soaking is 45 ℃, the time of soaking is 8 hours, the introducing amount of second liquid component makes liquid level be higher than 12 centimetres of corn particles, in immersion process, constantly replenish from the soak solution (second liquid component) among the steeping tank A in the step (2), to keep liquid level;
(4) soak solution among the steeping tank B (first liquid component) is incorporated among the steeping tank A that finishes immersion in the step (2), with displacement second liquid component, corn among the steeping tank A (the second solid ingredient) is soaked, the temperature of soaking is 45 ℃, the time of soaking is 28 hours, the introducing amount of first liquid component makes liquid level be higher than 12 centimetres of corn particles (the second liquid component that is used in the step (2) soaking is replaced fully), in immersion process, constantly replenish from the soak solution (first liquid component) 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 by GBT 15038-2006 total reducing sugar direct titrimetric method respectively.Detect the content that soaks starch among the soaked corn A1-A3 that obtains after the end among the embodiment 1-3 in the step (4), the content of described starch refers to 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, the content 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
As can be seen from the above table data, in the higher situation of the starch content that guarantees to make soaked corn (about 70 % by weight), the treatment process of corn provided by the invention can reduce the time that corn soaking is processed significantly, thereby improved significantly production efficiency, this can reduce energy consumption significantly in suitability for industrialized production, have important economic worth.
Claims (9)
1. the treatment process of a corn, wherein, the method comprises: dried corn particle is contacted 6-8 hour with water, obtain pretreated corn;
(1) is that the sulfurous acid aqueous solution of 0.1-0.5 % by weight contacts 4-6 hour with pretreated corn particle and concentration, obtains the second solid ingredient, and obtain and second liquid component after pretreated corn contacts;
(2) dried corn particle is contacted 6-8 hour with the second liquid component, obtain the first solid ingredient, and obtain and first liquid component after dried corn particle contacts;
(3) step (1) gained the second solid ingredient is contacted 20-32 hour with the first liquid component, obtain the 3rd solid ingredient, the 3rd solid ingredient that obtains is the corn of handling well;
(4) with pretreated corn in the first solid ingredient replacement step (1) in the step (2);
(5) repeating step (1) is to (4).
2. treatment process according to claim 1, wherein, the described 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.
3. treatment process according to claim 1, wherein, the way of contact in the described step (1) is for soaking, and the temperature of immersion is 45-55 ℃, and the liquid level of the described sulfurous acid aqueous solution is higher than at least 10 centimetres of corn particles.
4. treatment process according to claim 3, wherein, the 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 % by weight is to keep liquid level.
5. treatment process according to claim 1, wherein, the way of contact in the described step (2) is for soaking, and the temperature of immersion is 45-55 ℃, and the liquid level of described second liquid component is higher than at least 10 centimetres of corn particles.
6. treatment process according to claim 5, wherein, the method also comprises: in the process that step (2) is soaked, the second liquid component in the step (1) is incorporated in the step (2), to keep the liquid level in the step (2).
7. treatment process according to claim 1, wherein, the way of contact in the described step (3) is for soaking, and the temperature of immersion is 45-55 ℃, and the liquid level of described first liquid component is higher than at least 10 centimetres of the second solid ingredients.
8. treatment process according to claim 7, wherein, the method also comprises: in the process that step (3) is soaked, the first liquid component in the step (2) is incorporated in the step (3), to keep the liquid level in the step (3).
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 201010255955 CN102372783B (en) | 2010-08-13 | 2010-08-13 | Corn processing method |
Applications Claiming Priority (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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| CN102372783A CN102372783A (en) | 2012-03-14 |
| CN102372783B true 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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| CN102372783A (en) | 2012-03-14 |
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