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Method for producing aquatic granulated feed adhesive modified starch

A technology of pellet feed and modified starch, which is applied in the molding or processing of animal feed, animal feed, animal feed, etc., can solve the problems of no published patent report on modified starch, affecting the nutrition of fish and shrimp feed, and loss of feed nutrients. , to achieve the effect of improving feed utilization, reducing losses and improving stability

Inactive Publication Date: 2012-07-04
广西农垦明阳生化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the difference in the quality of different varieties of flour, its addition amount is generally about 20%. Although flour is harmless to fish and shrimp, it cannot be directly absorbed by fish and shrimp. Adding too much will affect the nutrition of fish and shrimp feed
The fish and shrimp pellet feed produced with flour as a binder, although its water resistance can reach the specified time without collapsing, but the feed pellets are prone to radial cracks after being put into water, and are easy to melt, disperse, and break from the cracks. Moreover, the feed is easily broken during transportation to produce powder, which increases the loss of feed nutrients.
[0006] At present, there are few reports on the application of modified starch as a binder in the domestic aquatic feed industry, and there is no public patent report on the use of modified starch as a binder for aquatic pellet feed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take 1000kg of native corn starch and put it into the kneader, dissolve 1kg of sodium tripolyphosphate, 1kg of urea and 0.5kg of hydrochloric acid with 8 liters of water, stir until completely dissolved, spray the mixture into the starch, and then dissolve 1kg of oxalic acid with 2 liters of water. The aqueous solution is sprayed into the starch, and the kneader continues to mix for 20-30 minutes to obtain a semi-finished product with a moisture content of 15.2%; place the semi-finished product for 3 hours, put the semi-finished product into an enamel reaction tank, and react at 175-180°C for 1 hour. The finished product is obtained after cooling and sieving.

Embodiment 2

[0023] Take 1000kg of native corn starch and put it into the kneader, dissolve 6kg of sodium tripolyphosphate, 3kg of urea and 3kg of phosphoric acid with 12 liters of water. After stirring until completely dissolved, spray the mixture into the starch, then dissolve 2kg of tartaric acid with 4 liters of water. Spray into the starch, the kneader continues to mix for 20-30 minutes to obtain a semi-finished product with a moisture content of 16.5%; put the semi-finished product for 2 hours, put the semi-finished product into the enamel reaction tank, and react at 130-135°C for 2.0 hours. The finished product is obtained after cooling and sieving.

Embodiment 3

[0025] Take 1000kg of native corn starch and put it into the kneader, dissolve 20kg of sodium tripolyphosphate, 10kg of urea, and 5kg of a mixture of hydrochloric acid and phosphoric acid (2:1) with 35 liters of water. After stirring until completely dissolved, spray the mixture into the starch, and then Dissolve 5 kg of citric acid with 5 liters of water, spray the aqueous solution into the starch, and continue to mix for 20-30 minutes to obtain a semi-finished product with a moisture content of 20.4%; leave the semi-finished product for 4 hours, and put the semi-finished product into the belt reactor at React for 5 hours under the condition of ~105°C, and obtain the finished product after cooling and sieving.

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Abstract

The invention discloses a method for producing aquatic granulated feed adhesive modified starch. Starch is taken as a raw material; an esterifying agent, a composite catalyst and an adhesion agent are added into the starch; and the mixture is subjected to dry-method high-temperature reaction, cooling and screening to prepare a finished product. By performing one-step catalytic esterification, catalytic degradation and adhesion action on the starch, the product has the advantages of cold water solubility, cohesiveness, water-binding capacity, stability and other comprehensive performance superior to those of the conventional natural plant starch adhesives, and capacities of overcoming defects of plant starch serving as a granulated feed adhesive, improving the feed stability in water, reducing the loss of nutrient components of the feed and improving the utilization rate of the feed. A process of dry-method chemical modification is adopted in the production process of the product and the method has the advantages of simple and convenient operation, high reaction efficiency, short period, no wastewater, environmental protection and light pollution.

Description

Technical field [0001] The invention relates to a production method of modified starch, in particular to a production method of aquatic pellet feed binder modified starch. Background technique [0002] It is very necessary to add adhesives to aquatic feeds. The adhesives can bind the compound feeds that are evenly mixed and contain various nutrients, improve the formability of aquatic feeds, enhance water resistance, and reduce the loss of nutrients. , Improve the feeding rate of aquatic animals, thereby improving production performance. Studies have shown that reasonable use of adhesives can save about 1 / 3 of feed. [0003] The development and application of aquatic feed adhesives began in the 1950s, and it was not taken seriously until the 1960s. In recent years, due to the important role of adhesives in aquaculture, it has gradually become a hot spot for research and development. Binders, also called excipients, are mainly used to process pellets to improve pellet quality (in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B31/06A23K1/18A23K20/163A23K40/00A23K50/80
CPCY02A40/818
Inventor 刘洁钟建玲潘瑞坚朱其虎陈明育玉琼广李彬华
Owner 广西农垦明阳生化有限公司
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