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Method for reducing dissolution loss of water-soluble vitamins in aquatic feed

A technology for water-soluble vitamins and aquatic feeds, applied in animal feed, animal feed, applications, etc., can solve the problems of difficult to control particle size, dissolution and loss of water-soluble components, rupture, etc., and achieve a wide range of effects.

Active Publication Date: 2013-04-24
广东海因特生物技术集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1) Using the method of excessive addition, but excessive addition will not only increase the cost, but more importantly, there is considerable blindness, which does not fundamentally solve the problem
[0006] 2) The coating method is adopted, but since the coated object is a water-soluble core material, it is difficult to form an emulsion system for producing microcapsules at a low cost. There are some reports using lipid compounds, such as : Stearic acid, hardened oil or paraffin are used as the wall material, and the method of spray cooling is adopted to form water-soluble core material and lipid compound chimera, but unfortunately due to cost, the melting point of the material used is very low (less than 70°C ), so the wall material has been melted and loses its effect during the tempering or puffing process, so it is still not possible to overcome the problem of dissolution and loss
And if adopt high-melting-point wall material, then there is the problem of cost and absorption utilization, also have the method that adopts sodium alginate and vitamin to mix and then add calcium chloride to solidify into ball, but existing method has serious deficiency: 1, because all in Water-phase system, and no emulsification system is formed, it is difficult to efficiently wrap water-soluble vitamins, and the yield is extremely low; 2, the particle size is difficult to control, usually above 10 mesh on a standard sieve, or even larger, but this particle size Pellets cannot be used in aquafeed processing
[0007] 3) Use the W / O type water-soluble vitamin emulsion specially for post-spraying (Wang Weiguo 2001, Deng Junming 2004, Zhao Chenwei 2006), but the interface film between the oil phase and the water phase in the W / O emulsion formed in this way is a small molecule The interface film has poor strength and is easy to rupture under the action of external shear force or osmotic pressure. Therefore, the water-soluble core material wrapped by the oil phase will still be dissolved in large quantities, and the water-soluble components will still be dissolved. Spraying is mainly suitable for the processing of extruded feed. For example, after spraying the water-in-oil emulsion of pepsin on the pellet feed (pepsin is in the water phase), 50% will be lost after soaking in water for 40 minutes (Zhao Chenwei 2006)
On the other hand, there are still quite a few feed factory production lines without post-spraying equipment

Method used

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  • Method for reducing dissolution loss of water-soluble vitamins in aquatic feed
  • Method for reducing dissolution loss of water-soluble vitamins in aquatic feed
  • Method for reducing dissolution loss of water-soluble vitamins in aquatic feed

Examples

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Embodiment 1

[0029] In this embodiment, vitamin B1 and vitamin B6, which are the most water-soluble, are taken as examples.

[0030] 1) Prepare a water-soluble vitamin solution: 25 grams of thiamine hydrochloride and 25 grams of VB6 are dissolved in an aqueous solution with a pH of about 5.0 at room temperature, and the volume of the water body is 1000 ml;

[0031] 2) Prepare the water phase: add 500 ml of sodium alginate aqueous solution with a mass percentage of 2% to the water-soluble vitamin solution while stirring. After it dissolves, add 10 grams of xanthan gum. After it is completely dissolved, add 2 grams of Tween 60 were stirred and dissolved evenly to obtain an aqueous phase;

[0032] 3) Prepare the oil phase: add 6 grams of Span 80 to 75 liters of soybean oil, and stir well at room temperature to form an oil phase;

[0033]4) Prepare the emulsion and solidify the microcapsule wall: slowly add the above-mentioned water phase to the oil phase while stirring, and then add it to a ...

Embodiment 2

[0037] This embodiment takes water-soluble trace elements as an example.

[0038] 1) Prepare a water-soluble trace element solution: 25 grams of zinc sulfate heptahydrate is dissolved in an aqueous solution with a pH of about 5.0 at room temperature, and the volume of the water body is 500 ml;

[0039] 2) Preparation of water phase: Add 250 ml of sodium alginate aqueous solution with a concentration of 0.1% to the water-soluble vitamin solution while stirring. After it dissolves, add 75 grams of xanthan gum. After it is completely dissolved, add 3.75 G Tween 80 and stir to dissolve evenly to obtain an aqueous phase;

[0040] 3) Prepare the oil phase: add 90 grams of Span 80 to 150 liters of rapeseed oil, and stir well at room temperature to form an oil phase;

[0041] 4) Preparation of emulsion: After that, slowly add the above water phase to the oil phase while stirring, and then add it to a commonly used high-shear emulsification equipment, 1000rpm, emulsify for 20 minutes,...

Embodiment 3

[0045] This embodiment takes vitamin C as an example.

[0046] 1) Prepare water-soluble vitamin C solution: 28.5g of vitamin C is dissolved in an aqueous solution with a pH of about 5.0 at room temperature, and the volume of the water body is 400ml;

[0047] 2) Preparation of the water phase: Add 600 ml of 4% sodium alginate aqueous solution to the water-soluble vitamin solution while stirring. After it dissolves, add 1 g of xanthan gum. After it is completely dissolved, add 3 G Tween 20 and stir to dissolve evenly to obtain an aqueous phase;

[0048] 3) Prepare the oil phase: add 9.99 grams of Span 80 to 999 liters of cottonseed oil, and stir well at room temperature to form an oil phase;

[0049] 4) Preparation of emulsion: After that, slowly add the above water phase to the oil phase while stirring, and then add them together to a commonly used high-shear emulsification equipment, 3000rpm, emulsify for 1 minute, then reduce the emulsification speed to 1000rpm, slowly Slow...

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Abstract

The invention belongs to the technical field of processing of feeds and specifically relates to a method for reducing dissolution loss of water-soluble vitamins in an aquatic feed. The method for reducing the dissolution loss of the water-soluble vitamins in the aquatic feed comprises the following steps of: emulsifying a water-soluble vitamin solution into an oil phase to form an emulsion, curing an interfacial film as a micro-capsule wall with high temperature resistance and shearing action, and adding the emulsion into a feed mixture. According to the method provided by the invention, the stability of the water-soluble vitamins in the aquatic feed can be greatly improved, and the dissolution loss of the water-soluble vitamins can be reduced; the method is suitable for performing direct addition before granulation or expansion; and as a large number of feed processing enterprises have no post-spraying devices and the current post-spraying can be used more successfully only in the expanded feed, the method has a wide range of application.

Description

technical field [0001] The invention belongs to the technical field of feed processing, and in particular relates to a method for reducing the dissolution and loss of water-soluble vitamins in aquatic feed. Background technique [0002] Feed processing (conditioning and granulation, puffing) will directly lead to heat damage of some heat-sensitive micronutrients, the most representative is vitamins, for example, VA (vitamin A), VD (vitamin D) without protection treatment ), VE (vitamin E), VC (vitamin C) and VK (vitamin K) lose about 20-50% after extrusion processing, and B vitamins also lose about 10%-20%, so in actual feed production Basically, stabilized vitamin forms are used. For example, tocopherol acetate and VA acetate are used to replace ordinary VA and VE respectively, and the method of coating or carrier adsorption is used to further improve stability; VC phosphate is used instead of VC, sulfurous acid Sodium hydrogen sodium menaquinone complex (MSBC) replaces co...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/16
Inventor 朱选
Owner 广东海因特生物技术集团有限公司