Feed additive for preventing intestinal infection and its preparation method and application
A technology for feed additives and intestinal infection, applied in applications, animal feed, animal feed, etc., can solve problems such as antibiotic residues, threats to human health, and drug resistance of pathogenic microorganisms, to improve stability, facilitate industrial production, and extract high rate effect
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Embodiment 1
[0037] (1) Mix 40g of sapindus fruit peel, 20g of walnut peel, 20g of Camellia oleifera peel, 5g of bitter mango husk, 5g of chestnut shell, 5g of peanut shell and 5g of acorn shell, crush them, pass through a 40-mesh sieve, add 1L of water to extract, extract Pressure 15MPa, extraction temperature 200°C, extraction time 1h, 820g of extract and 230g of residue were obtained;
[0038] (2) Add the residue of step (1) into 1150 mL of 1.5 mol / L hydrochloric acid solution for acid hydrolysis, the acid hydrolysis temperature is 70 ° C, after acid hydrolysis for 2 hours, filter; add 1150 mL of 2% sodium hydroxide aqueous solution to the filter residue Carry out alkaline hydrolysis, after alkaline hydrolysis for 2 hours, filter, and wash the filter residue with water until neutral to obtain 56 g of the product;
[0039] (3) Add the product obtained in step (2) to the extract of step (1), shake at 20°C at a frequency of 300 times / min for 2h, then dry at a temperature of 50°C and a pres...
Embodiment 2
[0041] (1) Mix 20g of sapindus fruit peel, 30g of walnut peel, 15g of Camellia oleifera peel, 10g of bitter mango husk, 10g of chestnut shell, 10g of peanut shell and 5g of acorn shell, crush them, pass through a 120-mesh sieve, add 2L of water to extract, extract Pressure 20MPa, extraction temperature 300°C, extraction time 0.5h, 1850g of extract and 210g of residue were obtained;
[0042] (2) Add 4.2 L of the residue from step (1) to 0.5 mol / L hydrochloric acid aqueous solution for acid hydrolysis, the acid hydrolysis temperature is 100 ° C, after acid hydrolysis for 3 hours, filter; add 2.1 L of 2% hydrogen to the filter residue for oxidation The sodium aqueous solution was subjected to alkaline hydrolysis, and after alkaline hydrolysis for 3 hours, it was filtered, and the filter residue was washed with water to neutrality to obtain 47 g of the product;
[0043] (3) Add the product obtained in step (2) to the extract of step (1), shake at a frequency of 50 times / min at 45°...
Embodiment 3
[0045] (1) Mix 30 g of Sapindus sapindus pericarp, 15 g of walnut pericarp, 15 g of camellia oleifera pericarp, 5 g of bitter mango husk, 5 g of chestnut shell, 20 g of peanut shell and 10 g of acorn shell, grind, pass through a 60-mesh sieve, add 0.8 L of water to extract, The extraction pressure was 5MPa, the extraction temperature was 150°C, and the extraction time was 3h, and 590g of extract and 270g of residue were obtained;
[0046] (2) Add 810mL of 2.5mol / L aqueous hydrochloric acid solution to the residue of step (1) for acidolysis, the acidolysis temperature is 50°C, after acidolysis for 1.5h, filter; add 1080mL of sodium hydroxide with a mass fraction of 2.5% to the filter residue The aqueous solution was subjected to alkaline hydrolysis, and after 1.5 hours of alkaline hydrolysis, it was filtered, and the filter residue was washed with water until neutral to obtain 63 g of the product;
[0047] (3) Add the product obtained in step (2) to the extract of step (1), sha...
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