CN101628944A - Complex modified starch - Google Patents
Complex modified starch Download PDFInfo
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- CN101628944A CN101628944A CN200910304396A CN200910304396A CN101628944A CN 101628944 A CN101628944 A CN 101628944A CN 200910304396 A CN200910304396 A CN 200910304396A CN 200910304396 A CN200910304396 A CN 200910304396A CN 101628944 A CN101628944 A CN 101628944A
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Abstract
The invention provides complex modified starch which is prepared from the following main ingredients by in portion by weight: 100 portions of starch, 1-4 portions of pH regulator and 50-250 portions of mixing water. The complex modified starch is prepared by the following steps: according to the weight proportion, mixing the starch and the water into slurry, the Baume degree of which is controlled at 18Be-22Be; adding the pH regulator to regulate the pH value of the slurry at 6.0-8.0; adding the slurry to a double roller dryer for gelatinizing and modifying instantly at the temperature of 115 DEG C-145DEG C, the pressure of 5.0bar-8.0bar and the rotating speed of 4rpm-7rpm, and drying and forming thin sheets within 1-10min; and micronizing the thin sheets to 15mum-25mum to obtain the complex modified starch. The complex modified starch has the characteristics of solubility in cold water, appropriate viscosity, low burning point and sufficient combustion.
Description
Technical field
The present invention relates to a kind of tamanori, relate to a kind of composite modified starch particularly as tamanori.
Background technology
Use elm powder, amonang powder, U.S. energy glue, CMC, native starch etc. as tamanori in traditional mosquito-repellent incense production process.But above-mentioned elm has been put into state three level protecting plant as in the material of tamanori, fells Cortex ulmi pumilae in a large number and is used for mosquito-repellent incense production and does not meet relevant environment, the ecological protection policy of present stage country; The amonang powder is the very big nonstandardized technique product of difference in quality, and need carry out manually-operated production processes such as mashing off, thereby the quality of tamanori own, purity, the temperature of mashing off process, time, workman's technology all can impact quality product, in addition, uses the amonang powder to be difficult for lighting as the mosquito-repellent incense of tamanori, be difficult for iron teeth dish and easily flame-out during burning, combustion time is about 7 and a half hours; Adopt U.S. energy glue or CMC adherent mosquito-repellent incense then can when burning, produce special chemical smell, and have the high problem of the amount of being fuming; And also all there are some problems in the native starch of different sources, influences the application of its effect mosquito-repellent incense tamanori, forms the temperature height of sticky slip as W-Gum in water, and the slip cohesive force is poor; The slip viscosity that yam starch forms is too high, the slip poor heat stability; The slip that tapioca (flour) forms also exists viscosity too high, resulting mosquito-repellent incense surface irregularity, dry linting, the problem that density unevenness is even.
Summary of the invention
The object of the present invention is to provide a kind of composite modified starch, to solve the above-mentioned problems in the prior art.This composite modified starch possesses coldwater-soluble, viscosity is moderate, point of ignition is low and can clean-burning characteristics.
Technical scheme provided by the invention is as follows:
A kind of composite modified starch is characterized in that, it is by mainly comprising following components in weight portions preparation:
100 parts of starch,
1～4 part of PH conditioning agent and
Size mixing 50～250 parts of waters,
According to above-mentioned weight proportion, starch and water are deployed into slip, control its degree Beaume 18Be～22Be, add pH value to 6.0～8.0 that the PH conditioning agent is regulated slip again; Above-mentioned slip is added in two roller moisture eliminators,, and in 1～10min, be dried flakiness in rotating speed gelatinization of the following moment sex change of 115 ℃～145 ℃ temperature, the pressure of 5.0bar～8.0bar, 4rpm～7rpm; Make behind the particle with thin slice micronizing to 15 μ m～25 μ m.
In above-mentioned steps, starch size is realized sex change by roller high temperature, high pressure, therefore, needs accurately temperature, the pressure of the two roller moisture eliminators of control, just can obtain the composite modified starch of required character; And should strictly control the roller rotating speed, and roller is crossed slow or too fast, and it is very big with the sex change difference that hot effect takes place that starch molecule is subjected to shearing force.
In the aforesaid composite modified starch, the employed tap water of water of sizing mixing for handling through water purifying plant, its total hardness is (with Ca
2+, Mg
2+Expression) below 500.The production of modified starch is higher to requirements in water quality, if size mixing with the water hardness (Mg
2+, Ca
2+) too high, can influence the gelatinization of starch, thereby reduce the viscoelasticity of modified starch.Therefore, should use highly purified water purifying plant effectively to remove calcium ions and magnesium ions and other impurity in the water, to guarantee the quality of modified starch.
In the aforesaid composite modified starch, the thickness of the thin slice that forms in roller should be controlled between 1～3mm, can the moment gelatinization to guarantee slip, and obtain the composite modified starch of suitable a degree.
In the aforesaid composite modified starch, described starch is selected from least a in wheat starch, tapioca (flour), cassava whole-powder, yam starch or the W-Gum etc.
In the aforesaid composite modified starch, starch granules must certain moisture in conjunction with under can gelatinization, the concentration of slip must suit, and could guarantee that starch reaches the even, abundant of product in the process of gelatinization reaction of degeneration; In addition and since the water of sizing mixing need be in the subsequent drying process all evaporations, therefore, be in considering of save energy, its consumption should not be too high, generally is advisable with the water consumption that is enough to it is formed distributed slurry.Therefore, when sizing mixing, to adjust pulp density according to raw material variety and moisture content of raw material, as when using wheat starch, employed wheat starch is 100: 50～150 with the weight part proportion optimization of the water of sizing mixing, when using tapioca (flour), employed tapioca (flour) is 100: 100～200 with the weight part proportion optimization of the water of sizing mixing, when using cassava whole-powder, employed cassava whole-powder is 125: 125～200 with the weight part proportion optimization of the water of sizing mixing, when using yam starch, employed yam starch is 100: 200～250 with the weight part proportion optimization of the water of sizing mixing, when using W-Gum, the weight part proportion optimization of employed W-Gum and the water of sizing mixing is 100: 150～250 etc.
In the aforesaid composite modified starch, described PH conditioning agent is that concentration is that 1～40% sodium hydroxide (w/v) or concentration are 1～30% hydrochloric acid (w/v).
In the aforesaid composite modified starch, dry sheet composite modified starch work in-process should be pulverized according to the different fineness requirement of product.
In the aforesaid composite modified starch, comprise also and the mixed uniformly viscosity toughener of the composite modified starch of above-mentioned micronizing that described viscosity toughener is CMC, employed amount and starch count 3～10: 100 by weight, to promote and to regulate the product viscosity.
Compared with prior art, beneficial effect of the present invention can be listed below:
This composite modified starch is in denaturation process, do not add esterifying agent, acidolysis agent or linking agent, but utilize himself characteristic, realize sex change by physics and molecular recombination step under high temperature in two roller dryers, the high pressure, in the product that is obtained, reactant and by-products content are few, the easier control of quality; The composite modified starch product that obtains possesses coldwater-soluble, viscosity is moderate, particle is thin and be evenly distributed, point of ignition is low, can fully burn, with the high characteristics of slurry good stability, the transparency of its formation, the preparation method of this composite modified starch has the advantages that operation steps is simple, manufacturing parameter is easily controlled, be suitable for carrying out suitability for industrialized production.
After adopting conventional steps to make mosquito-repellent incense the above-mentioned composite modified starch, the mosquito-repellent incense that is obtained has following characteristics:
1) because composite modified starch possesses coldwater-soluble, do not need to carry out production processes such as mashing off, gelatinization in process of production, can be directly and other powder stir in the lump, stirring once more gets final product base, simplifies production stage to add an amount of cold water or warm water (when temperature is low).Therefore, use this composite modified starch can save operation, improve work efficiency, reduce cost as the tamanori of mosquito-repellent incense;
2) combustion time: use the fragrant embryo density of mosquito-repellent incense that this composite modified starch makes evenly, easily light, burning-point reduces during mosquito incense burning, can cross iron teeth dish and flame-out, 90cm grows to about 8 and a half hours on long mosquito incense burning time edge, reaches the anophelifuge good result;
3) intensity: this composite modified starch has ultra-fine grain and suitable clinging power, with its mosquito-repellent incense smooth surface that makes, not dry linting, density height and being evenly distributed, under the prerequisite that does not increase fragrant bar sectional area, can promote the intensity of mosquito-repellent incense bar significantly, sectional area is 0.25cm
2The mosquito-repellent incense fracture resistence force reach 500～600G, mosquito-repellent incense equal frangibility not in production, transportation, sale and use;
4) environmental protection: this composite modified starch has the characteristics of environmental protection, use its mosquito-repellent incense to light as tamanori after, the amount of being fuming reduces significantly, even can reach " smokelessly " boundary;
5) cost reduces: use this composite modified starch as the mosquito-repellent incense of tamanori than the mosquito-repellent incense that uses the amonang powder as the tamanori 1.2 yuan/case that reduces cost, annual mosquito-repellent incense 3,500 ten thousand casees of producing of China are annually saved 40,000,000 yuan cost for manufacturing enterprise;
6) renewable: the raw material for preparing this composite modified starch all uses resourceful renewable agricultural-food, has changed the bad habit that original production amonang powder destroys the forest reserves, has protected the forest reserves.
Embodiment
Embodiment 1
Get 1000g W-Gum and the 1500g water of sizing mixing, size mixing with the water hardness (Mg
2+, Ca
2+Concentration) below 30.Add the W-Gum of 1000g and the water of sizing mixing of 1500g in a stirred pot, the back that stirs forms the slip of degree Beaume 18Be, and adding 30g concentration is 10% sodium hydroxide adjusting slip pH value to 8.0; Above-mentioned slip is added in two roller moisture eliminators,, and in 1～10min, be dried into the thick thin slice of 2mm in the pressure of 115～145 ℃ temperature, 5.0bar～8.0bar, rotating speed gelatinization of the following moment sex change of 4rpm～7rpm; Then, obtain product with the particle of thin slice micronizing to 15 μ m～25 μ m.
In the present embodiment, the Britain Spiram Sarco steam system control that temperature and pressure uses by cooperating frequency conversion system; The control of roller rotating speed realizes by the production plant frequency-changing control system; Micronizing is selected the disintegrating apparatus of separate type for use, to obtain the composite modified starch particle of even particle size distribution.
The composite modified starch particle that detection obtains, its parameter is as follows:
1) product can dissolve rapidly in cold water;
2) its 5% aqueous solution is thick, viscosity η=700～900Bu;
3) the product point of ignition is 650～750 ℃, lights sufficient combustion easily;
4) formed slip color is transparent, does not have layering, good stability 0～4 ℃ of placement after 10 days.
Embodiment 2
Get 1000g wheat starch and the 500g water of sizing mixing, size mixing with the water hardness (Mg
2+, Ca
2+Concentration) below 30.Add the wheat starch of 1000g and the water of sizing mixing of 500g in a stirred pot, the back that stirs forms the slip of degree Beaume 22Be, and adding 40g concentration is that 10% sodium hydroxide is regulated slip pH value to 8.0; Above-mentioned slip is added in two roller moisture eliminators,, and in 1～10min, be dried into the thick thin slice of 1nm in the pressure of 115～145 ℃ temperature, 5.0bar～8.0bar, rotating speed gelatinization of the following moment sex change of 4rpm～7rpm; Then, obtain product with the particle of thin slice micronizing to 15 μ m～25 μ m.
In the present embodiment, the Britain Spiram Sarco steam system control that temperature and pressure uses by cooperating frequency conversion system; The control of roller rotating speed realizes by the production plant frequency-changing control system; Micronizing is selected the disintegrating apparatus of separate type for use, to obtain the composite modified starch particle of even particle size distribution.
The composite modified starch particle that detection obtains, its parameter is as follows:
1) product can dissolve rapidly in cold water;
2) its 5% aqueous solution is thick, viscosity η=500～700Bu;
3) the product point of ignition is 650～750 ℃, lights sufficient combustion easily;
4) formed slip color is transparent, does not have layering, good stability 0～4 ℃ of placement after 10 days.
Embodiment 3
Get 1000g tapioca (flour) and the 1000g water of sizing mixing, size mixing with the water hardness (Mg
2+, Ca
2+Concentration) below 30.Add the tapioca (flour) of 1000g and the water of sizing mixing of 1000g in a stirred pot, the back that stirs forms the slip of degree Beaume 20Be, and adding 20g concentration is 10% hydrochloric acid adjusting slip pH value to 6.0; Above-mentioned slip is added in two roller moisture eliminators,, and in 1～10min, be dried into the thick thin slice of 3mm in the pressure of 115～145 ℃ temperature, 5.0bar～8.0bar, rotating speed gelatinization of the following moment sex change of 4rpm～7rpm; Then, obtain product with the particle of thin slice micronizing to 15 μ m～25 μ m.
In the present embodiment, the Britain Spiram Sarco steam system control that temperature and pressure uses by cooperating frequency conversion system; The control of roller rotating speed realizes by the production plant frequency-changing control system; Micronizing is selected the disintegrating apparatus of separate type for use, to obtain the composite modified starch particle of even particle size distribution.
The composite modified starch particle that detection obtains, its parameter is as follows:
1) product can dissolve rapidly in cold water;
2) its 5% aqueous solution is thick, viscosity η=750～1000Bu;
3) the product point of ignition is 650～750 ℃, lights sufficient combustion easily;
4) formed slip color is transparent, does not have layering, good stability 0～4 ℃ of placement after 10 days.
Embodiment 4
Get 1000g cassava whole-powder and the 1000g water of sizing mixing, size mixing with the water hardness (Mg
2+, Ca
2+Concentration) below 30.Add the cassava whole-powder of 1000g and the water of sizing mixing of 1000g in a stirred pot, the back that stirs forms the slip of degree Beaume 20Be, and adding 30g concentration is 10% hydrochloric acid adjusting slip pH value to 7.0; Above-mentioned slip is added in two roller moisture eliminators,, and in 1～10min, be dried into the thick thin slice of 3mm in the pressure of 115～145 ℃ temperature, 5.0bar～8.0bar, rotating speed gelatinization of the following moment sex change of 4rpm～7rpm; Then with the particle of thin slice micronizing to 15 μ m～25 μ m, then, obtain product with CMC (the granularity 15 μ m～25 μ m) uniform mixing of itself and 80g.
In the present embodiment, the Britain Spiram Sarco steam system control that temperature and pressure uses by cooperating frequency conversion system; The control of roller rotating speed realizes by the production plant frequency-changing control system; Micronizing is selected the disintegrating apparatus of separate type for use, to obtain the composite modified starch particle of even particle size distribution.
The composite modified starch particle that detection obtains, its parameter is as follows:
1) product can dissolve rapidly in cold water;
2) its 5% aqueous solution is thick, viscosity η=600～900Bu;
3) the product point of ignition is 650～750 ℃, lights sufficient combustion easily;
4) formed slip color is transparent, does not have layering, good stability 0～4 ℃ of placement after 10 days.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. a composite modified starch is characterized in that, it is by mainly comprising following components in weight portions preparation:
100 parts of starch,
1～4 part of PH conditioning agent and
Size mixing 50～250 parts of waters,
According to above-mentioned weight proportion, starch and water are deployed into slip, control its degree Beaume 18Be～22Be, add pH value to 6.0～8.0 that the PH conditioning agent is regulated slip again; Above-mentioned slip is added in two roller moisture eliminators,, and in 1～10min, be dried flakiness in rotating speed gelatinization of the following moment sex change of 115 ℃～145 ℃ temperature, the pressure of 5.0bar～8.0bar, 4rpm～7rpm; Make behind the particle with thin slice micronizing to 15 μ m～25 μ m.
2. according to the composite modified starch described in the claim 1, it is characterized in that: the total hardness of the employed water of sizing mixing is below 30.
3. according to the composite modified starch described in the claim 1, it is characterized in that: the thickness of the thin slice that forms in roller should be controlled between 1～3mm.
4. according to the composite modified starch described in the claim 3, it is characterized in that: described starch is selected from least a of wheat starch, tapioca (flour), cassava whole-powder, yam starch or W-Gum.
5. according to the composite modified starch described in the claim 4, it is characterized in that: wheat starch is 100: 50～150 with the weight part proportion optimization of the water of sizing mixing; Tapioca (flour) is 100: 100～200 with the weight part proportion optimization of the water of sizing mixing; Cassava whole-powder is 125: 125～200 with the weight part proportion optimization of the water of sizing mixing; Yam starch is 100: 200～250 with the weight part proportion optimization of the water of sizing mixing; Or the weight part proportion optimization of the W-Gum and the water of sizing mixing is 100: 150～250.
6. according to the composite modified starch described in the claim 1,2,3,4 or 5, it is characterized in that: described PH conditioning agent is that concentration is that 1～40% sodium hydroxide or concentration are 1～30% hydrochloric acid.
7. want the composite modified starch described in 6 according to right, it is characterized in that: also comprise the viscosity toughener, described viscosity toughener is CMC, and employed amount and starch count 3～10: 100 by weight.
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| CN2009103043968A CN101628944B (en) | 2009-07-15 | 2009-07-15 | Complex modified starch |
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| CN2009103043968A CN101628944B (en) | 2009-07-15 | 2009-07-15 | Complex modified starch |
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| CN101628944B CN101628944B (en) | 2011-05-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460396A (en) * | 2015-11-24 | 2016-04-06 | 安庆盛华纸质包装有限公司 | Production technology for sticky rice packing paper |
| CN106962564A (en) * | 2017-05-04 | 2017-07-21 | 兰州工业研究院 | A kind of production method of the blue flower in west and seedling milk tea |
| CN110527458A (en) * | 2019-09-18 | 2019-12-03 | 东莞市田园淀粉有限公司 | A kind of application and its processing method of cassava whole-powder |
| CN111072787A (en) * | 2019-12-31 | 2020-04-28 | 辽宁兴东科技有限公司 | Method for reducing viscosity of gelatinized starch |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2989039B2 (en) * | 1991-07-03 | 1999-12-13 | 松谷化学工業株式会社 | Processed starch and bakery food using the same |
| CN1079098C (en) * | 1998-04-13 | 2002-02-13 | 中国科学院广州化学研究所 | Process of producing cold soluble particular cationic starch by predextrination |
| US6809197B1 (en) * | 2003-06-11 | 2004-10-26 | Mgp Ingredients, Inc. | Emulsion stabilizing starch products |
| CN1563097A (en) * | 2004-04-09 | 2005-01-12 | 西南农业大学 | Double modified starch and preparation method |
| CN101338046A (en) * | 2008-08-08 | 2009-01-07 | 浙江欣欣生化科技有限公司 | Starch for sticks and preparation method |
-
2009
- 2009-07-15 CN CN2009103043968A patent/CN101628944B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460396A (en) * | 2015-11-24 | 2016-04-06 | 安庆盛华纸质包装有限公司 | Production technology for sticky rice packing paper |
| CN106962564A (en) * | 2017-05-04 | 2017-07-21 | 兰州工业研究院 | A kind of production method of the blue flower in west and seedling milk tea |
| CN110527458A (en) * | 2019-09-18 | 2019-12-03 | 东莞市田园淀粉有限公司 | A kind of application and its processing method of cassava whole-powder |
| CN111072787A (en) * | 2019-12-31 | 2020-04-28 | 辽宁兴东科技有限公司 | Method for reducing viscosity of gelatinized starch |
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| CN101628944B (en) | 2011-05-18 |
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Owner name: XIAMEN NENGZANGYI TRADING CO., LTD. Free format text: FORMER OWNER: JUXIANG (XIAMEN) FAECULA CO., LTD. Effective date: 20140207 |
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Effective date of registration: 20140207 Address after: Siming District of Xiamen City, Fujian province 361000 lianqianxi No. 2 sixteenth floor E room two Patentee after: Juxiang (Xiamen) Starch Co., Ltd. Address before: 361000 No. 480-500 port Avenue, Xiamen, Fujian, Jimei Patentee before: Juxiang (Xiamen) Starch Co., Ltd. |
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