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
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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 ...
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