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A method for improving the suspension of pellet fish feed

A pellet feed and suspension technology, which is applied in the molding or processing of animal feed, animal feed, animal feed, etc., can solve the problems that it is difficult to improve the surface hydrophobicity of pellet feed, so as to reduce the loss of soluble vitamins and have good suspension , the effect of reducing surface hydrophilicity

Active Publication Date: 2022-04-22
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the oil is directly sprayed on the pellet feed, most of the oil will be absorbed into the pellet feed, and it is difficult to improve the surface hydrophobicity of the pellet feed.

Method used

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  • A method for improving the suspension of pellet fish feed
  • A method for improving the suspension of pellet fish feed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 1 part of gelatin, 1 part of Span 80 and 1 part of malic acid to 100 parts of water, 70 o Stir under C to form a uniform natural colloid solution; 10 parts of lard and 15 parts of corn oil are mixed, 70 o C forms mixed oil; Mixed oil is added in the above-mentioned natural colloid solution, forms homogeneous emulsion under stirring at 300 rpm; Above-mentioned emulsion is mixed at 50 o C is sprayed onto the surface of 50 parts of pellet feed, 70 o C was dried for 4 hours to obtain a modified suspended particle feed. Suspension of pellet feed in water for 8h.

Embodiment 2

[0025] Add 3 parts of guar gum, 1 part of OP-10 and 1 part of acetic acid to 100 parts of water, 60 o Stir at C to form a homogeneous natural colloid solution; 5 parts of hydrogenated vegetable oil and 15 parts of soybean oil are mixed, 60 o C forms mixed oil; Mixed oil is added in the above-mentioned natural colloid solution, forms homogeneous emulsion under stirring at 500 rpm; Above-mentioned emulsion is mixed at 60 o C is sprayed onto the surface of 100 parts of pellet feed, at 60 o C and dried for 6 hours to obtain a modified suspended particle feed. Suspension of pelleted feed in water for 4 h.

Embodiment 3

[0027] Add 5 parts of flax gum, 2 parts of cetyltrimethylammonium bromide and 3 parts of citric acid to 100 parts of water, 80 o Stir under C to form a uniform natural colloid solution; mix 3 parts of beeswax and 10 parts of linseed oil at 80 o C forms a mixed oil; the mixed oil is added to the above-mentioned natural colloid solution, and a homogeneous emulsion is formed under stirring at 1000 rpm. Put the above emulsion at 80 o C is sprayed onto the surface of 80 parts of pellet feed, at 80 o C and dried for 2 hours to obtain the modified suspended particle feed. Suspension of pelleted feed in water for 12 h.

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Abstract

The invention discloses a method for improving the suspension of granular feed, which is to disperse natural rubber, surfactant and organic acid in water successively under stirring, o C to form a uniform solution, then add mixed oils, stir to form a uniform emulsion; finally spray the emulsion on the surface of the pellet feed, and dry to obtain a high-suspension pellet fish feed. The granular fish feed has good suspension and can be suspended in water for more than 4 hours; the hydrophilicity of the surface is significantly reduced, which can significantly reduce the loss of soluble vitamins in fish feed, and effectively solve the problem of short suspension time of pellet feed, low feed utilization rate and residual feed pollution Water issues etc. In addition, the modification process of the invention is simple and efficient, without any change in the particle size, appearance and smell of the fish feed, and is suitable for large-scale production.

Description

technical field [0001] The invention relates to a method for improving the suspension of granular fish feed, in particular to a method for enhancing the hydrophobicity of the granular feed after emulsion and then improving its suspension, and belongs to the field of feed processing. Background technique [0002] With the increasing popularity of high-yield fish farming, the use of pellet feed in fish production has become very common. However, most commercially available pellet feeds have a large specificity, good hydrophilicity, and poor suspension in water, and fish sink to the bottom before they can eat. Not only does it cause a reduction in the food intake of fish, a large amount of waste of feed, but also the residual feed pollutes the aquaculture water. In addition, soluble nutrients such as vitamins in pellet feed will also dissolve into water, resulting in a serious waste of nutrients. [0003] In order to improve the suspension of pellet feed in water, pellet feed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K50/80A23K40/30A23K20/158A23K20/147A23K20/105A23K10/20A23K20/10A23K10/30
CPCA23K50/80A23K40/30A23K20/158A23K20/147A23K20/105A23K10/20A23K20/10A23K10/30Y02A40/818
Inventor 王爱勤惠爱平杨芳芳康玉茹许江汪琴
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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