CN105294864A - Manufacturing of modified corn starch - Google Patents
Manufacturing of modified corn starch Download PDFInfo
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- CN105294864A CN105294864A CN201510808110.5A CN201510808110A CN105294864A CN 105294864 A CN105294864 A CN 105294864A CN 201510808110 A CN201510808110 A CN 201510808110A CN 105294864 A CN105294864 A CN 105294864A
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Abstract
The invention belongs to the field of natural organic chemistry, relates to a manufacturing technology of modified corn starch, and especially relates to a production technology of modified starch. According to the method, an oxidant water solution is atomized and then sprayed according to a certain ratio, the reactions are carried out for 1.5 to 2 hours, and the modified corn starch by the provided technology has the advantages of high solubility and good caking property. The provided method is simple, the product yield is high, the method is suitable for massive production, moreover, the cost is largely reduced, most of impurities can be removed through water washing, and the operation is easy.
Description
Technical field
The present invention relates to a kind of manufacture craft of modified corn starch, particularly relate to the technique utilizing dilute hydrochloric acid acid to become.
Background technology
Corn (formal name used at school: Zeamays), also known as Zea mays, maize, maize, ear of maize.Guangdong language is called maize, and the south of Fujian Province language is called a kind wheat.Being annual gramineae herbaceous plant, is important food crop and important feed resource, is also the food crop that whole world ultimate production is the highest.Corn have the laudatory title of life prolonging food, containing rich in protein, fat, VITAMIN, trace element, Mierocrystalline cellulose and polysaccharide etc., has the great potential of the high nutrition of exploitation, high biological function food.
The metabolizable energy of corn is that 14.06MJ/kg, Gao Zheke reach 15.06MJ/kg, is the highest in cereals feed.This is little mainly due to robust fibre in corn, and only 2%; And nitrogen-free extract is up to 72%, and digestibility can reach 90%; On the other hand, the crude fat content of corn is high, between 3.5% to 4.5%.Corn is annual gramineae plant, has another name called maize, ear of maize, maize etc.Measure according to the study, every 100 grams of corn heat content 106 kilocalories, Mierocrystalline cellulose 2.9 grams, 4.0 grams, protein, 1.2 grams, fat, 22.8 grams, carbohydrate, another containing mineral element and VITAMIN etc.The robust fibre contained in corn, than polished rice, smart face height 4-10 doubly.Also containing a large amount of magnesium in corn, magnesium can strengthen intestines wall wriggling, promotes the excretion of body waste.The composition that corn is above-mentioned and function, highly beneficial for fat-reducing.Colored fringe Stigma Maydis when corn is ripe, has diuretic properties, also favourable to fat-reducing.Corn can boil soup for tea-drinking, is made into Semen Maydis powder, corn cake etc. after also can pulverizing.Popcorn volume after expanded is very large, can eliminate the hunger sensation of obese people after food, but after food, heat content is very low, is also one of surrogate of fat-reducing.
W-Gum (cornstarch) is also known as corn starch.Popular name maize powder.The micro-yellowish powder of white.By corn with after 0.3% sulfurous acid dipping, by broken, sieve, precipitate, the operation such as dry, levigate and making.Containing a small amount of fat and protein etc. in usual production.Water absorbability is strong, and most high energy reaches more than 30%.Cleaning equipment has vibratory screening apparatus, specific-gravity stoner, permanent magnetic pulley and wheat washer etc.
Modified starch is the character utilizing the means such as physics, chemistry and enzyme to change native starch, makes it meet the needs of all trades and professions application.The usage quantity of modified starch and scope are very wide, and China has produced pre-gelatinized starch, acidified starch, Sumstar 190, etherification starch, esterification starch, cross-linking starch, graft starch etc. and has been applied to industry more than totally 70 kind such as weaving, papermaking, food, oil, medical, building, agriculture feed, daily-use chemical industry.Be wherein maximum with the application quantity of paper industry, account for total amount 50-60%, be mainly used as wet end additive, interlayer or surface spray agent, Surface Size and coating adhesive.They significantly improve the various physical strengths of paper, improve quality and class, reduce wood pulp proportioning, improve the retention of fiber fines, filler, improve the ash content of finished paper, whiteness and opaqueness, reduce wet end breaks, alleviate three waste discharge, and improve printing performance.
Modified starch can make processed food keep higher viscosity stability under high temperature, high shear force and low PH condition in the application of foodstuffs industry, keep its thickening capabilities, also the food after can making processing avoids water quality to be separated in room temperature or cryopreservation procedures, owing to being improve the transparency of starch paste by sex change, therefore can improve the outward appearance of food, improve its glossiness.So modified starch can be added, to improve the quality of products at food convenient for production, meat product, food flavouring, Yoghourt, soup stock, candy, jelly, frozen product, sweetened bean paste stuffing, crispy snack, snackfoods etc.Modified starch, in textile industry large usage quantity, is mainly used in gauze starching, printing gum, is mainly used for the multiple occasion of petroleum drilling fluid, fracturing liquid and production of hydrocarbons at petroleum industry modified starch.The applied range of modified starch in a word, specificity is strong, wide in variety, is that a market potential is large, the product in development.
Summary of the invention
The object of the present invention is to provide the manufacture craft of modified corn starch, product yield is high, and cost is low, is convenient to produce.
The invention provides the manufacture craft that the present invention relates to a kind of modified corn starch, its step comprises:
(1) raw material selection: select ripe corn grain to soak;
(2) pulverize: pulverized in crusher by the corn after soaking, pulverize repetition 2 times, until be fine particle, every powder once all needs to spray water in order to grinding, with sieve screen once, to remove the tissue and impurity that do not grind; Water consumption time broken is about 2 times of material quantity, and the water for screen is about heavy 4 times of raw material, and the concentration of the rare starch milk of last gained is about 4-8 degree Beaume;
(3) precipitate: rare starch milk sedimentation time in skewed slot completed in 8 hours, surveyed its pH value;
(4) washing and bleaching: the starch obtained from the settling bath of skewed slot processing is diluted to 20 degree of Baumes, by pump delivery to rinse bath, washes with water 2-3 time, venting waste liquid, be added with water and be diluted to 18 degree of Baumes, warp let-off glue workshop section; Poor for raw material, the starch that pink colour is darker, then carry out decolouring bleaching, SYNTHETIC OPTICAL WHITNER chlorinated lime or S02 after in the end washing together;
(5) size mixing: ative starch adds water and to size mixing in mixing vessels, add the aqueous oxidizing agent solution atomization of 1: 10 to 1: 12, be injected in proportion in stirred pot, react and carry out gelatinization after 1.5-2 hour, the concentration of slurries is at 35%-40%, and temperature is 35-60 DEG C;
(6) gelatinization: gelatinization point is 80-100 DEG C, gelatinization time is 1.5-2 hour;
(7) neutralize: be neutralized to about pH8.0 with the superoxol of 5% concentration and dry;
(8) clear water rinses: rinse with process water and stop without saline taste to elutant, dry to obtain sex change powder wet-milling;
(9) dry: dry at 80 DEG C, make water content below 12%, get product.
Embodiment:
Embodiment 1: the invention provides the manufacture craft that the present invention relates to a kind of modified corn starch, its step comprises:
(1) raw material selection: select ripe corn grain to soak;
(2) pulverize: pulverized in crusher by the corn after soaking, pulverize repetition 2 times, until be fine particle, every powder once all needs to spray water in order to grinding, with sieve screen once, to remove the tissue and impurity that do not grind; Water consumption time broken is about 2 times of material quantity, and the water for screen is about heavy 4 times of raw material, and the concentration of the rare starch milk of last gained is about 8 degree Beaume;
(3) precipitate: rare starch milk sedimentation time in skewed slot completed in 8 hours, surveyed its pH value;
(4) washing and bleaching: the starch obtained from the settling bath of skewed slot processing is diluted to 20 degree of Baumes, by pump delivery to rinse bath, washes with water 2-3 time, venting waste liquid, be added with water and be diluted to 18 degree of Baumes, warp let-off glue workshop section; Poor for raw material, the starch that pink colour is darker, then carry out decolouring bleaching, SYNTHETIC OPTICAL WHITNER chlorinated lime or S02 after in the end washing together;
(5) size mixing: ative starch adds water and to size mixing in mixing vessels, add the aqueous oxidizing agent solution atomization of 1: 10, be injected in proportion in stirred pot, react and carry out gelatinization after 2 hours, the concentration of slurries is 40%, and temperature is 60 DEG C;
(6) gelatinization: gelatinization point is 80 DEG C, gelatinization time is 1.5 hours;
(7) neutralize: be neutralized to about pH8.0 with the superoxol of 5% concentration and dry;
(8) clear water rinses: rinse with process water and stop without saline taste to elutant, dry to obtain sex change powder wet-milling;
(9) dry: dry at 80 DEG C, make water content below 12%, get product.
Embodiment 2: the invention provides the manufacture craft that the present invention relates to a kind of modified corn starch, its step comprises:
(1) raw material selection: select ripe corn grain to soak;
(2) pulverize: pulverized in crusher by the corn after soaking, pulverize repetition 2 times, until be fine particle, every powder once all needs to spray water in order to grinding, with sieve screen once, to remove the tissue and impurity that do not grind; Water consumption time broken is about 2 times of material quantity, and the water for screen is about heavy 4 times of raw material, and the concentration of the rare starch milk of last gained is about 4-8 degree Beaume;
(3) precipitate: rare starch milk sedimentation time in skewed slot completed in 8 hours, surveyed its pH value;
(4) washing and bleaching: the starch obtained from the settling bath of skewed slot processing is diluted to 20 degree of Baumes, by pump delivery to rinse bath, washes with water 2-3 time, venting waste liquid, be added with water and be diluted to 18 degree of Baumes, warp let-off glue workshop section; Poor for raw material, the starch that pink colour is darker, then carry out decolouring bleaching, SYNTHETIC OPTICAL WHITNER chlorinated lime or S02 after in the end washing together;
(5) size mixing: ative starch adds water and to size mixing in mixing vessels, add the aqueous oxidizing agent solution atomization of 1: 12, be injected in proportion in stirred pot, react and carry out gelatinization after 2 hours, the concentration of slurries is 35%, and temperature is 40 DEG C;
(6) gelatinization: gelatinization point is 80 DEG C, gelatinization time is 2 hours;
(7) neutralize: be neutralized to about pH8.0 with the superoxol of 5% concentration and dry;
(8) clear water rinses: rinse with process water and stop without saline taste to elutant, dry to obtain sex change powder wet-milling;
(9) dry: dry at 80 DEG C, make water content below 12%, get product.
Claims (4)
1. the invention provides the manufacture craft that the present invention relates to a kind of modified corn starch, its step comprises:
(1) raw material selection: select ripe corn grain to soak;
(2) pulverize: pulverized in crusher by the corn after soaking, pulverize repetition 2 times, until be fine particle, every powder once all needs to spray water in order to grinding, with sieve screen once, to remove the tissue and impurity that do not grind; Water consumption time broken is about 2 times of material quantity, and the water for screen is about heavy 4 times of raw material, and the concentration of the rare starch milk of last gained is about 4-8 degree Beaume;
(3) precipitate: rare starch milk sedimentation time in skewed slot completed in 8 hours, surveyed its pH value;
(4) washing and bleaching: the starch obtained from the settling bath of skewed slot processing is diluted to 20 degree of Baumes, by pump delivery to rinse bath, washes with water 2-3 time, venting waste liquid, be added with water and be diluted to 18 degree of Baumes, warp let-off glue workshop section; Poor for raw material, the starch that pink colour is darker, then carry out decolouring bleaching, SYNTHETIC OPTICAL WHITNER chlorinated lime or SO2 after in the end washing together;
(5) size mixing: ative starch adds water and to size mixing in mixing vessels, add the aqueous oxidizing agent solution atomization of 1: 10 to 1: 12, be injected in proportion in stirred pot, react and carry out gelatinization after 1.5-2 hour, the concentration of slurries is at 35%-40%, and temperature is 35-60 DEG C;
(6) gelatinization: gelatinization point is 80-100 DEG C, gelatinization time is 1.5-2 hour;
(7) neutralize: be neutralized to about pH8.0 with the superoxol of 5% concentration and dry;
(8) clear water rinses: rinse with process water and stop without saline taste to elutant, dry to obtain sex change powder wet-milling;
(9) dry: at 80 DEG C, 1 is dry, makes water content below 12%, get product.
2. the manufacture craft of a kind of modified corn starch according to claim 1, is characterized in that: in described step (2), the concentration of the rare starch milk of gained is about 4-8 degree Beaume.
3. the invention provides the manufacture craft that the present invention relates to a kind of modified corn starch, it is characterized in that: in described step (5), ative starch adds water and to size mixing in mixing vessels, add the aqueous oxidizing agent solution atomization of 1: 10 to 1: 12, be injected in proportion in stirred pot, react and carry out gelatinization after 1.5-2 hour, the concentration of slurries is at 35%-40%, and temperature is 35-60 DEG C.
4. the manufacture craft of a kind of modified corn starch according to claim 1, is characterized in that: in described step (6), gelatinization point is 80-100 DEG C, and gelatinization time is 1.5-2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510808110.5A CN105294864A (en) | 2015-11-16 | 2015-11-16 | Manufacturing of modified corn starch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510808110.5A CN105294864A (en) | 2015-11-16 | 2015-11-16 | Manufacturing of modified corn starch |
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| CN105294864A true CN105294864A (en) | 2016-02-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105732998A (en) * | 2016-04-01 | 2016-07-06 | 广西来宾绿翔生物科技有限公司 | Starch adhesive used for sea eel feedstuff |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838681A (en) * | 2012-09-24 | 2012-12-26 | 王建设 | Production method of corn starch |
| CN103570837A (en) * | 2013-09-28 | 2014-02-12 | 蒋辉 | Preparation method of corn starch |
| CN104098706A (en) * | 2014-06-25 | 2014-10-15 | 安徽年康面业有限责任公司 | Corn starch preparation method |
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2015
- 2015-11-16 CN CN201510808110.5A patent/CN105294864A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838681A (en) * | 2012-09-24 | 2012-12-26 | 王建设 | Production method of corn starch |
| CN103570837A (en) * | 2013-09-28 | 2014-02-12 | 蒋辉 | Preparation method of corn starch |
| CN104098706A (en) * | 2014-06-25 | 2014-10-15 | 安徽年康面业有限责任公司 | Corn starch preparation method |
Non-Patent Citations (2)
| Title |
|---|
| 姚金芝: "《农产品加工贮藏技术（第1版）》", 28 February 2014 * |
| 李慧东: "《淀粉制品加工技术（第1版）》", 31 July 2012 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105732998A (en) * | 2016-04-01 | 2016-07-06 | 广西来宾绿翔生物科技有限公司 | Starch adhesive used for sea eel feedstuff |
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Application publication date: 20160203 |