High-stability aquatic product feed granules and preparation method thereof

An aquatic feed, high stability technology, applied in the field of feed, can solve the problems of dissolution and diffusion loss, reduction of effective concentration, pollution of water environment, etc.

Pending Publication Date: 2019-04-12
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since most aquatic feed additives are released in water bodies, some water-soluble additives are easy to dissolve, diffuse and lose, resulting in a decrease in effective concentration, which

Method used

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  • High-stability aquatic product feed granules and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: A high-stability aquatic feed granule, which includes a feed core layer, a slow-release layer, and a coating layer from the inside to the outside, and the coating layer is composed of acrylic resin and gelatin in a mass ratio of 40:60. The slow-release layer is made of gluten, and the aquatic feed granules are made by the following preparation method:

[0044] (1) Preparation of feed core layer:

[0045] S1. Mix phytase and dialdehyde-based nanocellulose carrier uniformly according to the mass ratio of 1:2, and pass through a 70-mesh sieve to prepare mixture I;

[0046] S2. Sericin was dissolved in 4wt% sodium pyrophosphate aqueous solution to prepare solution II, and the mass ratio of sericin and sodium pyrophosphate aqueous solution was 10:100;

[0047] S3. Mixture I and solution II were processed by a homogenizer to obtain mixture III, and sodium bicarbonate was added, and stirred for 3 minutes to obtain mixture IV. The mass ratio of mixture I and solutio...

Embodiment 2

[0056] Embodiment 2: A kind of high-stability aquatic feed granule, comprises feed core layer, sustained-release layer and coating layer successively from inside to outside, and described coating layer is made of hydroxyethyl cellulose and hydrogenated castor oil according to mass ratio: 60:40, the slow-release layer is made of gluten, and the aquatic feed granules are made by the following preparation method:

[0057] (1) Preparation of feed core layer:

[0058] S1. Mix the Bacillus subtilis and the dialdehyde-based nanocellulose carrier uniformly according to the mass ratio of 1:1, and pass through a 60-mesh sieve to prepare the mixture I;

[0059] S2. Sericin was dissolved in 3 wt % sodium pyrophosphate aqueous solution to prepare solution II, the mass ratio of sericin and sodium pyrophosphate aqueous solution was 50:100;

[0060] S3. Mixture I and solution II were processed by a homogenizer to obtain mixture III, and sodium bicarbonate was added, and stirred for 5 minutes...

Embodiment 3

[0069] Embodiment 3: A kind of high-stability aquatic feed granule, comprises feed core layer, sustained-release layer and coating layer successively from inside to outside, and described coating layer is made of polyethylene glycol 6000 and stearyl alcohol according to mass ratio: 70:30, the slow-release layer is made of gluten, and the aquatic feed granules are made by the following preparation method:

[0070] (1) Preparation of feed core layer:

[0071] S1. Mix betaine and dialdehyde-based nanocellulose carrier uniformly according to the mass ratio of 1:3, and pass through a 60-mesh sieve to prepare mixture I;

[0072] S2. Sericin was dissolved in 3 wt% sodium pyrophosphate aqueous solution to prepare solution II, the mass ratio of sericin and sodium pyrophosphate aqueous solution was 40:100;

[0073] S3. Mixture I and solution II were processed by a homogenizer to obtain mixture III, and sodium bicarbonate was added, and stirred for 3 minutes to obtain mixture IV. The ma...

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Abstract

The invention belongs to the technical field of feeds, and particularly relates to high-stability aquatic product feed granules and a preparation method thereof. The high-stability aquatic product feed granules provided by the invention sequentially comprise a feed core layer, a slow-release layer and a coating layer from the inner part to the outer part, wherein the coating layer consists of a hydrophilic light material and a hydrophobic light material; the slow-release layer consists of vital wheat gluten; and the feed core layer is prepared through the steps of mixing a feed with an appropriate amount of two-CHO group nanocellulose and a sericin solution, performing homogenizing, adding sodium bicarbonate, performing atomizing, spraying calcium chloride to obtain solid matter, and thenperforming drying. The aquatic product feed granules have a three-layer structure, the core layer adopts the sericin and the two-CHO group nanocellulose as carriers, the density ratio is low, more active components can be adsorbed, and slow release of the active components is facilitated. The coating layer consists of light materials, and can separate water from entering the feed core layer; and the slow-release layer achieves a certain delaying effect on infiltration of moisture. The prepared feed granules are good in stability, and high in biological availability.

Description

technical field [0001] The invention belongs to the technical field of feed, and in particular relates to a highly stable aquatic feed and a preparation method thereof. Background technique [0002] As we all know, compared with general livestock and poultry, aquatic animals have higher requirements for the stability of feed in water. After the feed is put into water, it not only has to withstand the shock, impact and soaking of water, but also takes a long time to eat shrimp and crabs (2- More than 4 hours), so the aquatic feed needs to be kept in the water to keep floating for a period of time, so that the aquatic animals have enough feeding time. [0003] At present, in aquaculture, the use of feed additives is in open water bodies. Most of the additives have excellent water solubility, such as vitamins, mineral salts, carnitine, and betaine, which are important for fish growth. And plant extracts, if they are directly fed into water without treatment, they can dissolve ...

Claims

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Application Information

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IPC IPC(8): A23K50/80A23K40/10A23K40/30A23K20/147A23K20/163A23K20/22A23K20/189A23K10/18A23K20/105
CPCA23K10/18A23K20/105A23K20/147A23K20/163A23K20/189A23K20/22A23K40/10A23K40/30A23K50/80Y02A40/818
Inventor 华颖邵庆均张金枝齐鑫肖金星李艳虹张刚威王磊童胜利
Owner ZHEJIANG UNIV
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