Feed additive as well preparation method and application in feed for aquatic animals

A feed additive, aquatic animal technology, applied in the molding or processing of animal feed, animal feed, application, etc., to achieve the effect of enhancing antioxidant capacity, promoting growth, and improving bad odor

Active Publication Date: 2016-09-07
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no report that turmeric volatile oil and various other pure natural volatile oils are combined and applied to aquatic animal feed. The application of

Method used

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  • Feed additive as well preparation method and application in feed for aquatic animals
  • Feed additive as well preparation method and application in feed for aquatic animals
  • Feed additive as well preparation method and application in feed for aquatic animals

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1: Preparation of volatile oil mixture

[0034] (1) Take the turmeric root tuber and crush it and pass it through a 50-mesh sieve to obtain turmeric powder.

[0035] (2) Mix the above-mentioned turmeric powder and 60% ethanol uniformly at a mass-volume ratio of 1:10, extract for 3 hours at 100 rpm, centrifuge at 3000 rpm for 10 minutes, repeat the extraction 3 times, take the clear liquid to obtain the crude curcumin extract.

[0036] (3) The crude curcumin extract is crystallized and recrystallized to obtain refined curcumin, and the crystallization mother liquor is concentrated to an oily state to obtain turmeric butter resin.

[0037] (4) Add distilled water to the turmeric powder residue obtained in step (2) above, with a material-to-liquid ratio of 1:6, pass in steam, and distill for 6 hours with slight boiling, and collect the sludge to obtain a turmeric volatile oil I-water mixed system; Sodium chloride is added to the water phase of the obtained oil-water mixing...

Example Embodiment

[0040] Example 2: Preparation of volatile oil mixture

[0041] (1) Take the turmeric root tuber and crush it and pass it through a 40-mesh sieve to obtain turmeric powder;

[0042] (2) Mix the turmeric powder and 75% ethanol uniformly at a mass-volume ratio of 1:5, extract for 2 hours at 200 rpm, filter, repeat the extraction 3 times, take the clear liquid to obtain a crude curcumin extract.

[0043] (3) The crude curcumin extract is crystallized and recrystallized to obtain refined curcumin, and the crystallization mother liquor is concentrated to an oily state to obtain turmeric butter resin.

[0044] (4) Add distilled water to the turmeric powder residue obtained in the above step (2), with a material-to-liquid ratio of 1:8, add steam, and distill for 6.5 hours at a slight boiling point. Collect the sludge to obtain a turmeric volatile oil I-water mixed system; Sodium chloride is added to the water phase of the obtained oil-water mixing system, and after it is saturated, it is extr...

Example Embodiment

[0047] Example 3: Preparation of turmeric volatile oil

[0048] (1) Take the turmeric root tuber and crush it and pass it through a 50-mesh sieve to obtain turmeric powder;

[0049] (2) Mix the turmeric powder and 85% ethanol uniformly at a mass-volume ratio of 1:7, extract for 2 hours at 150 rpm, centrifuge at 3000 rpm for 10 minutes, repeat the extraction 3 times, take the clear liquid to obtain the crude curcumin extract.

[0050] (3) The crude curcumin extract is crystallized and recrystallized to obtain refined curcumin, and the crystallization mother liquor is concentrated to an oily state to obtain turmeric butter resin.

[0051] (4) Add distilled water to the turmeric powder residue obtained in the above step (2), with a material-to-liquid ratio of 1:7, pass in steam, and distill with slight boiling for 6 hours, and collect the sludge to obtain a turmeric volatile oil I-water mixed system; Sodium chloride is added to the water phase of the obtained oil-water mixed system, and ...

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Abstract

The invention relates to a feed additive. The feed additive is prepared from a volatile oil mixture and a carrier, wherein the mass ratio of the volatile oil mixture to the carrier is 1 to (4-8), the volatile oil mixture is prepared by mixing turmeric volatile oil, fiveleaf gynostemma herb volatile oil and atractylodes rhizome volatile oil, and the carrier is beta-cyclodextrin. The invention further relates to a preparation method and application of the feed additive in a feed for aquatic animals. Compared with the prior art, if the feed additive disclosed by the invention is applied to the feed for the aquatic animals, the antioxidant ability of the aquatic animals can be notably improved, the total antioxidant ability of serum and the activity of superoxide dismutase can be improved, the antioxidant ability of organisms can be improved, the oxidative damage of the organisms can be avoided, the immunity of the aquatic animals can be improved, the lysozyme vitality and complement vitality in the serum of the aquatic animals can be improved, the leucocyte phagocytic index in the serum can be increased, the health of the organisms can be improved, the growth rate and the survival rate of the aquatic animals can be increased, the growth is promoted, and a theoretical basis is laid for the development of the green raising of the aquatic animals.

Description

technical field [0001] The invention relates to the field of aquatic animal feed, in particular to a feed additive, a preparation method thereof and an application in aquatic animal feed. Background technique [0002] Aquatic products are common foods in the daily diet of Chinese residents and an important source of human protein intake. The traditional aquatic animal feed has simple nutrients, contains less protein and other nutritional elements, and can only meet the general needs of aquatic animals in the growth process. Under some special climate or seasonal conditions, it cannot meet the growth needs of aquatic animals. The modern large-scale aquaculture breeding method, while increasing the production speed, has also brought many problems. The quality of aquatic products is reduced and various diseases are prone to occur, as well as the large amount of antibiotics and additives in the feed. These problems affect the healthy development of my country's aquaculture indus...

Claims

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Application Information

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IPC IPC(8): A23K50/80A23K20/158A23K20/163A23K40/30
Inventor 王进波齐莉莉周云晓喻鹏飞梅乐和
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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