CN104798989A - Preparation method of special pre-gelatinized starch for feed - Google Patents
Preparation method of special pre-gelatinized starch for feed Download PDFInfo
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- CN104798989A CN104798989A CN201510207427.3A CN201510207427A CN104798989A CN 104798989 A CN104798989 A CN 104798989A CN 201510207427 A CN201510207427 A CN 201510207427A CN 104798989 A CN104798989 A CN 104798989A
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Abstract
The invention discloses a preparation method for a special pre-gelatinized starch for a feed. According to the method, native starch is used as a raw material, and chemical additives are added to prepare the pre-gelatinized starch. The preparation method particularly comprises the following steps: (1) adding purified deionized water into the native starch for stirring to obtain a moistened starch mixture; (2) adding the chemical additives into the moistened starch mixture, and stirring for 10 minutes to obtain a mixture; (3) conveying the mixture into a bulking machine for pregelatinization and drying to obtain a white transparent strip-shaped product, and then smashing the product to obtain the special aquafeed pre-gelatinized starch. The pre-gelatinized starch produced by the invention is white and transparent, so that the utilization of aquatic products to the feed is improved, the feed efficiency is improved, and the feeding cost is reduced.
Description
Technical field
The present invention relates to a kind of preparation method of feed addictive, particularly relate to the preparation method of the special pre-gelatinized starch of a kind of feed.
Background technology
In aquaculture process, in order to reduce the scatter rate of feed in water, improving stability and efficiency, alleviating water pollution, often need to add the feed addictives such as pre-gelatinized starch in feed.China produced pre-gelatinized starch from 80 years 20th century, but owing to producing many-sided reasons such as raw material used, equipment and technology, the Quality and yield of the pre-gelatinized starch of production is all the time all undesirable.Recent years, no matter the production of pre-gelatinized starch was that output or quality are all significantly improved along with the development of special aquaculture industry, and the technical merit especially utilizing cassava to produce pre-gelatinized starch has unprecedented development., all there is the problem that product yellowing transparency is inadequate in the pre-gelatinized starch product made a general survey of these production technologies and produce, the opaque feed that can affect aquatic products of pre-gelatinized starch yellowing, thus affect the efficiency of feed, causes aquaculture cost high.In addition, utilize twin-roll pre-gelatinized machine to produce pre-gelatinized starch, maximum shortcoming is that energy consumption for drying is large, and production cost is high.
Summary of the invention
Technical problem to be solved by this invention is the preparation method of the special pre-gelatinized starch of feed providing a kind of quality height white clear.
The technical solution adopted for the present invention to solve the technical problems is: the preparation method of the special pre-gelatinized starch of a kind of feed, comprises the steps:
(1) in batch mixing pond, peninsula board ative starch and flourish Star ative starch is added with the ratio of 2:1, stir while add through the deionization waterside of purification process, puddle and form moistening starch compound, the addition of deionized water is 15 ~ 20% of ative starch gross weight;
(2) the millesimal ratio in ative starch gross weight in starch compound adds chemical addition agent, then stirs 10 minutes;
(3) use extrusion expansion technology that starch compound is clamp-oned bulking machine, heating pressurization, is extruded by pore, carries out pre-gelatinized, dry process; Chemical addition agent in described step (2) is one or more in sodium carbonate, sodium chloride, NaOH, and described step (3) is pressurized to (7 ~ 8) X10
5pa, being heated to temperature is 125 ~ 140 DEG C, and the pore diameter in described step (3) is 0.1 ~ 0.8mm.
As the improvement of technique scheme, deionization electrical conductivity of water≤10mu used in described step (1).
As another improvement of technique scheme, the bulking machine of described step (3) is double helix exrusion bulking machine.
As the another improvement of technique scheme, also comprise step (4): the water content naturally utilizing chimneying dry technology to make pre-gelatinized starch to keep stable after cooling.
The invention has the beneficial effects as follows: the pre-gelatinized starch utilizing the present invention to produce is white clear shape, the pre-gelatinized starch of white clear shape can improve the utilization of aquatic products to feed, improves the efficiency of feed, reduces aquaculture cost; In addition utilize production method of the present invention, the energy consumption for drying of pre-gelatinized starch is few, and production cost is low.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described.
The present invention take ative starch as raw material, add chemical addition agent to prepare the pre-gelatinized starch of white clear, concrete steps are as follows: (1) adds peninsula board ative starch and flourish Star ative starch with the ratio of 2:1 in batch mixing pond, stir while add through the deionization waterside of purification process, puddle and form moistening starch compound, the addition of deionized water is 15 ~ 20% of ative starch gross weight; (2) the millesimal ratio in ative starch gross weight in starch compound adds chemical addition agent, then stirs 10 minutes; (3) use extrusion expansion technology that starch compound is clamp-oned bulking machine, heating pressurization, is extruded by pore, carries out pre-gelatinized, dry process; Be pressurized to (7 ~ 8) X10 in step (3)
5pa, being heated to temperature is 125 ~ 140 DEG C, and the pore diameter in step (3) is 0.1 ~ 0.8mm.
After (3) step, obtain white clear pre-gelatinized starch into strips, obtain the special pre-gelatinized starch of aquatic feeds by pulverizing, its characteristic is as follows:
| Outward appearance | White powder |
| Fineness (80 target accurate sub-sieve percent of pass %)≤ | 90.0 |
| Baidu (457nm blue emission rate)≤ | 75.0 |
| Moisture (%)≤ | 6.0 |
| Ash content (%)≤ | 0.6 |
| Viscosity (5%, 25 DEG C, mPaS)≤ | 3000 |
Embodiment 1:
First use batch mixing pond scrub, in batch mixing pond, put into peninsula board ative starch 2 tons and flourish Star ative starch 1 ton again, add 450 kilograms of deionized waters through purification process, require deionization electrical conductivity of water≤10mu, while stir, form moistening starch compound; Then add the sodium carbonate of 3 kilograms, then stir 10 minutes.Then use extrusion expansion technology that starch compound is clamp-oned double helix bulking machine, heating pressurization, makes starch denaturalization, is extruded by 0.1mm pore, carries out pre-gelatinized, dry process; Be pressurized to (7 ~ 8) X10 in this step
5pa, being heated to temperature is 125 ~ 140 DEG C.Obtaining white clear product into strips through pre-gelatinized, dry process, obtaining the special pre-gelatinized starch of aquatic feeds through pulverizing.
Embodiment 2:
First use batch mixing pond scrub, in batch mixing pond, put into peninsula board ative starch 2 tons and flourish Star ative starch 1 ton again, add 600 kilograms of deionized waters through purification process, require deionization electrical conductivity of water≤10mu, while stir, form moistening starch compound; Then add the sodium chloride of 3 kilograms, then stir 10 minutes.Then use extrusion expansion technology that starch compound is clamp-oned double helix bulking machine, heating pressurization, makes starch denaturalization, is extruded by 0.8mm pore, carries out pre-gelatinized, dry process; Be pressurized to (7 ~ 8) X10 in this step
5pa, being heated to temperature is 125 ~ 140 DEG C.Obtaining white clear product into strips through pre-gelatinized, dry process, obtaining the special pre-gelatinized starch of aquatic feeds through pulverizing.
Embodiment 3:
First use batch mixing pond scrub, in batch mixing pond, put into peninsula board ative starch 2 tons and flourish Star ative starch 1 ton again, add 500 kilograms of deionized waters through purification process, require deionization electrical conductivity of water≤10mu, while stir, form moistening starch compound; Then add the NaOH of 3 kilograms, then stir 10 minutes.Then use extrusion expansion technology that starch compound is clamp-oned double helix bulking machine, heating pressurization, makes starch denaturalization, is extruded by 0.6mm pore, carries out pre-gelatinized, dry process; Be pressurized to (7 ~ 8) X10 in this step
5pa, being heated to temperature is 125 ~ 140 DEG C.Obtain white clear product into strips through pre-gelatinized, dry process, utilize chimneying dry technology to carry out drying after crushed, obtain the pre-gelatinized starch that water content keeps stable aquatic feeds special.
Although describe embodiments of the present invention above, those skilled in the art can make various distortion or amendment within the scope of the appended claims.
Claims (4)
1. a preparation method for the special pre-gelatinized starch of feed, is characterized in that, comprise the steps:
In batch mixing pond, add peninsula board ative starch and flourish Star ative starch with the ratio of 2:1, stir while add through the deionization waterside of purification process, puddle and form moistening starch compound, the addition of deionized water is 15 ~ 20% of ative starch gross weight;
Millesimal ratio in ative starch gross weight in starch compound adds chemical addition agent, then stirs 10 minutes;
Use extrusion expansion technology that starch compound is clamp-oned bulking machine, heating pressurization, is extruded by pore, carries out pre-gelatinized, dry process;
Chemical addition agent in described step (2) is one or more in sodium carbonate, sodium chloride, NaOH, and described step (3) is pressurized to (7 ~ 8) X10
5pa, being heated to temperature is 125 ~ 140 DEG C, and the pore diameter in described step (3) is 0.1 ~ 0.8mm.
2. the preparation method of the special pre-gelatinized starch of a kind of feed according to claim 1, is characterized in that, deionization electrical conductivity of water≤10mu used in described step (1).
3. the preparation method of the special pre-gelatinized starch of a kind of feed according to claim 1, is characterized in that, the bulking machine of described step (3) is double helix exrusion bulking machine.
4. the preparation method of the special pre-gelatinized starch of a kind of feed according to claim 1, is characterized in that, also comprises step (4): the water content naturally utilizing chimneying dry technology to make pre-gelatinized starch to keep stable after cooling.
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| CN201510207427.3A CN104798989A (en) | 2015-04-28 | 2015-04-28 | Preparation method of special pre-gelatinized starch for feed |
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| CN201510207427.3A CN104798989A (en) | 2015-04-28 | 2015-04-28 | Preparation method of special pre-gelatinized starch for feed |
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Citations (9)
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|---|---|---|---|---|
| WO2005005484A1 (en) * | 2003-07-11 | 2005-01-20 | Asahi Kasei Chemicals Corporation | Functional starch powder |
| CN1903885A (en) * | 2005-07-28 | 2007-01-31 | 四平帝达变性淀粉有限公司 | Predextrinization acetylated distarch phosphate and its preparation method |
| WO2008037082A1 (en) * | 2006-09-25 | 2008-04-03 | Archer-Daniels-Midland Company | Superabsorbent surface-treated carboxyalkylated polysaccharides and process for producing same |
| CN101704895A (en) * | 2009-11-16 | 2010-05-12 | 浙江大学 | Preparation method of highly viscous feeding pregelatinized starch |
| CN101974093A (en) * | 2010-09-29 | 2011-02-16 | 广西明阳生化科技股份有限公司 | Production method for preparing low-pasting-temperature starch in cold water |
| CN102321184A (en) * | 2011-08-08 | 2012-01-18 | 武汉纺织大学 | The application technology as the second resource of fresh Rhizome of Peltate Yam |
| CN102964457A (en) * | 2012-11-19 | 2013-03-13 | 沈阳工业大学 | Debranched, crosslinked and pregelatinized starch and preparation method thereof |
| CN103435855A (en) * | 2013-09-05 | 2013-12-11 | 长沙理工大学 | Preparation method of nano cationic starch |
| CN104411727A (en) * | 2012-05-15 | 2015-03-11 | 泰特&莱尔组分美国公司 | Process for preparing inhibited non-pregelatinized granular starches |
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- 2015-04-28 CN CN201510207427.3A patent/CN104798989A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005005484A1 (en) * | 2003-07-11 | 2005-01-20 | Asahi Kasei Chemicals Corporation | Functional starch powder |
| CN1903885A (en) * | 2005-07-28 | 2007-01-31 | 四平帝达变性淀粉有限公司 | Predextrinization acetylated distarch phosphate and its preparation method |
| WO2008037082A1 (en) * | 2006-09-25 | 2008-04-03 | Archer-Daniels-Midland Company | Superabsorbent surface-treated carboxyalkylated polysaccharides and process for producing same |
| CN101704895A (en) * | 2009-11-16 | 2010-05-12 | 浙江大学 | Preparation method of highly viscous feeding pregelatinized starch |
| CN101974093A (en) * | 2010-09-29 | 2011-02-16 | 广西明阳生化科技股份有限公司 | Production method for preparing low-pasting-temperature starch in cold water |
| CN102321184A (en) * | 2011-08-08 | 2012-01-18 | 武汉纺织大学 | The application technology as the second resource of fresh Rhizome of Peltate Yam |
| CN104411727A (en) * | 2012-05-15 | 2015-03-11 | 泰特&莱尔组分美国公司 | Process for preparing inhibited non-pregelatinized granular starches |
| CN102964457A (en) * | 2012-11-19 | 2013-03-13 | 沈阳工业大学 | Debranched, crosslinked and pregelatinized starch and preparation method thereof |
| CN103435855A (en) * | 2013-09-05 | 2013-12-11 | 长沙理工大学 | Preparation method of nano cationic starch |
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Application publication date: 20150729 |