CN104799093A - Preparation method of pregelatinized starch for aquatic feed - Google Patents
Preparation method of pregelatinized starch for aquatic feed Download PDFInfo
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- CN104799093A CN104799093A CN201510207425.4A CN201510207425A CN104799093A CN 104799093 A CN104799093 A CN 104799093A CN 201510207425 A CN201510207425 A CN 201510207425A CN 104799093 A CN104799093 A CN 104799093A
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Abstract
The invention discloses a preparation method of pregelatinized starch for aquatic feed. In the preparation method, native starch is adopted as a raw material, and a chemical additive is added to prepare the pregelatinized starch. The preparation method comprises the following specific steps: (1) adding deionized water subjected to purification treatment into the native starch for stirring to prepare the native starch into a starch size with the concentration of 20-20.5 Be; (2) adding the chemical additive into the starch size, and stirring again for 10 minutes; (3) conveying the starch size added with the chemical additive into a pregelatinization machine to be subjected to pregelatinization and drying treatment to obtain white transparent strip-shaped thin crusts, and then smashing, so as to obtain the pregelatinized starch special for aquatic feed. According to the invention, the pregelatinized starch produced is white and transparent, can increase the utilization ratio of feed used by aquatic products, improves the efficiency of the feed, and reduces the breeding cost.
Description
Technical field
The present invention relates to a kind of preparation method of feed addictive, particularly relate to the preparation method of a kind of pre-gelatinized starch for aquatic feeds.
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.
Summary of the invention
Technical problem to be solved by this invention is the preparation method providing a kind of pre-gelatinized starch of quality height white clear for aquatic feeds.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pre-gelatinized starch is used for the preparation method of aquatic feeds, comprises the steps:
(1) in size-mixing tank, add peninsula board ative starch and flourish Star ative starch with the ratio of 2:1, stir through the deionization waterside of purification process while add, make the farinaceous size that concentration is 20 ~ 20.5Be;
(2) add chemical addition agent at farinaceous size in the millesimal ratio of ative starch gross weight, then stir 10 minutes;
(3) send into pre-gelatinized machine and carry out pre-gelatinized, dry process; Described step (3) steam pressure used is (7 ~ 8) X10
5pa, the drum surface temperature of the pre-gelatinized machine in described step (3) is 125 ~ 140 DEG C.
As the improvement of technique scheme, deionization electrical conductivity of water≤10mu used in described step (1).
Improve as another of technique scheme, the chemical addition agent in described step (2) is one or more in sodium carbonate, sodium chloride, NaOH.
As the another improvement of technique scheme, the pre-gelatinized machine of described step (3) is twin-roll pre-gelatinized machine.
As the another improvement of technique scheme, the rotating speed of the pre-gelatinized machine cylinder of described step (3) is 1000r/min.
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.
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 size-mixing tank, stir through the deionization waterside of purification process while add, make the farinaceous size that concentration is 20 ~ 20.5Be; (2) add chemical addition agent at farinaceous size in the millesimal ratio of ative starch gross weight, then stir 10 minutes; (3) send into pre-gelatinized machine and carry out pre-gelatinized, dry process, steam pressure used is (7 ~ 8) X10 in this step
5pa, the drum surface temperature of pre-gelatinized machine used is 125 ~ 140 DEG C, obtains white clear thin skin into strips after (3) step, and 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 (%)≤ | 8.0 |
| Ash content (%)≤ | 0.6 |
| Viscosity (5%, 25 DEG C, mPaS)≤ | 3000 |
Embodiment 1:
First with clear water, size-mixing tank, slurry storing tank are rinsed well, peninsula board ative starch 2 tons and flourish Star ative starch 1 ton is put into again in size-mixing tank, while add the deionized water through purification process, require deionization electrical conductivity of water≤10mu, while stir, make the farinaceous size that concentration is 20 ~ 20.5Be; Then add the sodium carbonate of 3 kilograms, then stir 10 minutes.Then slurries are sent into pre-gelatinized machine and carry out pre-gelatinized, dry process; This step steam pressure used is (7 ~ 8) X10
5pa, the drum surface temperature of pre-gelatinized machine is 125 ~ 140 DEG C.Obtaining white clear thin skin into strips through pre-gelatinized, dry process, obtaining the special pre-gelatinized starch of aquatic feeds through pulverizing.
Embodiment 2:
First with clear water, size-mixing tank, slurry storing tank are rinsed well, peninsula board ative starch 2 tons and flourish Star ative starch 1 ton is put into again in size-mixing tank, while add the deionized water through purification process, require deionization electrical conductivity of water≤10mu, while stir, make the farinaceous size that concentration is 20 ~ 20.5Be; Then add the sodium chloride of 3 kilograms, then stir 10 minutes.Then slurries are sent into twin-roll pre-gelatinized machine and carry out pre-gelatinized, dry process; This step steam pressure used is (7 ~ 8) X10
5pa, the drum surface temperature of twin-roll pre-gelatinized machine is 125 ~ 140 DEG C.Obtaining white clear thin skin into strips through pre-gelatinized, dry process, obtaining the special pre-gelatinized starch of aquatic feeds through pulverizing.
Embodiment 3:
First with clear water, size-mixing tank, slurry storing tank are rinsed well, peninsula board ative starch 2 tons and flourish Star ative starch 1 ton is put into again in size-mixing tank, while add the deionized water through purification process, require deionization electrical conductivity of water≤10mu, while stir, make the farinaceous size that concentration is 20 ~ 20.5Be; Then add the NaOH of 3 kilograms, then stir 10 minutes.Then slurries are sent into pre-gelatinized machine and carry out pre-gelatinized, dry process; This step steam pressure used is (7 ~ 8) X10
5pa, the drum surface temperature of pre-gelatinized machine is 125 ~ 140 DEG C, and the rotating speed of cylinder is 1000r/min.。Obtaining white clear thin skin into strips through pre-gelatinized, dry process, obtaining the special pre-gelatinized starch of aquatic feeds through pulverizing.
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. pre-gelatinized starch is used for a preparation method for aquatic feeds, it is characterized in that, comprises the steps:
In size-mixing tank, add peninsula board ative starch and flourish Star ative starch with the ratio of 2:1, stir through the deionization waterside of purification process while add, make the farinaceous size that concentration is 20 ~ 20.5Be;
Add chemical addition agent at farinaceous size in the millesimal ratio of ative starch gross weight, then stir 10 minutes;
Send into pre-gelatinized machine and carry out pre-gelatinized, dry process;
Deionization electrical conductivity of water≤10mu used in described step (1), described step (3) steam pressure used is (7 ~ 8) X10
5pa, the drum surface temperature of the pre-gelatinized machine in described step (3) is 125 ~ 140 DEG C.
2. a kind of pre-gelatinized starch according to claim 1 is used for the preparation method of aquatic feeds, it is characterized in that, the chemical addition agent in described step (2) is one or more in sodium carbonate, sodium chloride, NaOH.
3. a kind of pre-gelatinized starch according to claim 1 is used for the preparation method of aquatic feeds, and it is characterized in that, the pre-gelatinized machine of described step (3) is twin-roll pre-gelatinized machine.
4. a kind of pre-gelatinized starch according to claim 1 is used for the preparation method of aquatic feeds, and it is characterized in that, the rotating speed of the pre-gelatinized machine cylinder of described step (3) is 1000r/min.
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| CN201510207425.4A CN104799093A (en) | 2015-04-28 | 2015-04-28 | Preparation method of pregelatinized starch for aquatic feed |
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| CN201510207425.4A CN104799093A (en) | 2015-04-28 | 2015-04-28 | Preparation method of pregelatinized starch for aquatic feed |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163272A (en) * | 1997-04-11 | 1997-10-29 | 国内贸易部谷物油脂化学研究所 | Predextrinizing finishing starch and its preparing method |
| CN1683417A (en) * | 2005-03-07 | 2005-10-19 | 中国科学院广州化学研究所 | Process for preparing high substituted degree hydroxyalkyl starch |
| WO2006133335A2 (en) * | 2005-06-07 | 2006-12-14 | Mgp Ingredients, Inc. | Reversibly swellable granular starch-lipid composites and methods of making same |
| CN101033259A (en) * | 2006-03-10 | 2007-09-12 | 四平帝达变性淀粉有限公司 | Process of preparing pregelatinization acetyl oxidation starch |
| CN101704895A (en) * | 2009-11-16 | 2010-05-12 | 浙江大学 | Preparation method of highly viscous feeding pregelatinized starch |
| CN102725314A (en) * | 2009-12-24 | 2012-10-10 | 推进动力公司 | Highly hydrated starch and process for its production |
| CN103739721A (en) * | 2014-01-02 | 2014-04-23 | 开平联技化工有限公司 | Pre-gelatinized starch and preparation method thereof |
| 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 |
-
2015
- 2015-04-28 CN CN201510207425.4A patent/CN104799093A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163272A (en) * | 1997-04-11 | 1997-10-29 | 国内贸易部谷物油脂化学研究所 | Predextrinizing finishing starch and its preparing method |
| CN1683417A (en) * | 2005-03-07 | 2005-10-19 | 中国科学院广州化学研究所 | Process for preparing high substituted degree hydroxyalkyl starch |
| WO2006133335A2 (en) * | 2005-06-07 | 2006-12-14 | Mgp Ingredients, Inc. | Reversibly swellable granular starch-lipid composites and methods of making same |
| CN101033259A (en) * | 2006-03-10 | 2007-09-12 | 四平帝达变性淀粉有限公司 | Process of preparing pregelatinization acetyl oxidation starch |
| CN101704895A (en) * | 2009-11-16 | 2010-05-12 | 浙江大学 | Preparation method of highly viscous feeding pregelatinized starch |
| CN102725314A (en) * | 2009-12-24 | 2012-10-10 | 推进动力公司 | Highly hydrated starch and process for its production |
| 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 |
| CN103739721A (en) * | 2014-01-02 | 2014-04-23 | 开平联技化工有限公司 | Pre-gelatinized starch and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 程建军 等: "《淀粉工艺学》", 31 December 2011, 科学出版社 * |
| 肖利贞 等: "《薯类淀粉制品实用加工技术》", 28 February 2002, 中原农民出版社 * |
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Application publication date: 20150729 |