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

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...

Examples

Embodiment 1

[0033] Embodiment 1: the preparation of volatile oil mixture

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

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

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

[0037] (4) add distilled water in the turmeric powder slag of above-mentioned steps (2) gained, material-liquid ratio 1:6, pass into water vapor, microboiling distillation 6 hours, collect and slip out liquid, get turmeric volatile oil I-water mixing system; Sodium chloride is added to the water phase of the obtained oil-water mixed system, and after reaching ...

Embodiment 2

[0040] Embodiment 2: the preparation of volatile oil mixture

[0041] (1) get turmeric root and pulverize, cross 40 mesh sieves, get turmeric powder;

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

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

[0044] (4) add distilled water in the turmeric powder slag of above-mentioned steps (2) gained, material-to-liquid ratio 1:8, pass into water vapor, microboiling distillation 6.5 hours, collect and slip out liquid, get turmeric volatile oil I-water mixing system; Sodium chloride is added to the water phase of the obtained oil-water mixed system, and after reaching saturation, it is extracted...

Embodiment 3

[0047] Embodiment 3: the preparation of turmeric volatile oil

[0048] (1) get turmeric root and pulverize, cross 50 mesh sieves, get turmeric powder;

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

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

[0051] (4) add distilled water in the turmeric powder slag of above-mentioned steps (2) gained, material-liquid ratio 1:7, pass into water vapor, microboil distillation 6 hours, collect slipping out liquid, get turmeric volatile oil I-water mixing system; Sodium chloride was added to the water phase of the obtained oil-water mixed system, and after reaching saturation, it was ...

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...

Examples

Embodiment 1

[0033] Embodiment 1: the preparation of volatile oil mixture

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

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

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

[0037] (4) add distilled water in the turmeric powder slag of above-mentioned steps (2) gained, material-liquid ratio 1:6, pass into water vapor, microboiling distillation 6 hours, collect and slip out liquid, get turmeric volatile oil I-water mixing system; Sodium chloride is added to the water phase of the obtained oil-water mixed system, and after reaching ...

Embodiment 2

[0040] Embodiment 2: the preparation of volatile oil mixture

[0041] (1) get turmeric root and pulverize, cross 40 mesh sieves, get turmeric powder;

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

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

[0044] (4) add distilled water in the turmeric powder slag of above-mentioned steps (2) gained, material-to-liquid ratio 1:8, pass into water vapor, microboiling distillation 6.5 hours, collect and slip out liquid, get turmeric volatile oil I-water mixing system; Sodium chloride is added to the water phase of the obtained oil-water mixed system, and after reaching saturation, it is extracted...

Embodiment 3

[0047] Embodiment 3: the preparation of turmeric volatile oil

[0048] (1) get turmeric root and pulverize, cross 50 mesh sieves, get turmeric powder;

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

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

[0051] (4) add distilled water in the turmeric powder slag of above-mentioned steps (2) gained, material-liquid ratio 1:7, pass into water vapor, microboil distillation 6 hours, collect slipping out liquid, get turmeric volatile oil I-water mixing system; Sodium chloride was added to the water phase of the obtained oil-water mixed system, and after reaching saturation, it was ...

Images