Traditional Chinese medicinal extract feed additive and preparation method thereof
A feed additive and extract technology, applied in the field of traditional Chinese medicine extract feed additive and its preparation, can solve the problems of inability to improve the physiological function of laying hens, increase bacterial resistance, endanger human health, etc., and achieve the prevention of gastrointestinal diseases, The effect of improving daily weight gain and breeding rate, and promoting animal growth
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Embodiment 1
[0062] The preparation of embodiment 1 eucommia leaf extract
[0063] Step 1, crushing: take 10 kg of eucommia leaves, dry and crush them and pass through a 40-mesh sieve to obtain eucommia leaf powder;
[0064] Step 2. Extraction: according to the mass volume ratio of feed liquid 1g: 6mL, add 60L of water to the eucommia leaf powder obtained in step 1 and soak overnight, then decoct and extract for the first time at 90°C for 4 hours, and filter , according to the mass-volume ratio of material to liquid 1g: 4mL, after adding 40L of water to the filter residue, decoct and extract for the second time at 90°C, the extraction time is 2h, filter, and combine the filtrates of the two times of filtration to obtain filtrate A;
[0065] Step 3, concentration: Concentrate the filtrate A obtained in step 2 under reduced pressure at 60°C to 15% (i.e. 15L) of the total volume of water used to obtain concentrated solution A;
[0066] Step 4, alcohol precipitation: add a mass concentration ...
Embodiment 2
[0068] The preparation of embodiment 2 soybean extracts
[0069] Step A, pulverization: take soybean (the soybean is the seed of soybean) 10kg, pass through a 40-mesh sieve after pulverization, and obtain soybean powder;
[0070] Step B: Extraction: According to the mass-volume ratio of material to liquid: 1g:10mL, add 100L of ethanol solution with a mass concentration of 70% to the soybean powder obtained in step A, extract at 60°C for 8h, and filter to obtain supernatant A;
[0071] Step C, Concentration: Concentrate the supernatant A obtained in Step B at 60° C. to a volume of 15% (i.e. 15 L) of the total volume of the ethanol solution used to obtain a concentrated solution B;
[0072] Step D, acid precipitation: adjust the pH of the concentrated solution B obtained in step C to 4.5, centrifuge at 2000r / min for 5m to precipitate protein, and obtain supernatant B;
[0073] Step E, drying: spray-dry the supernatant B obtained in step D to obtain soybean extract (1 g of soybe...
Embodiment 3
[0074] The preparation of embodiment 3 corn cob flour
[0075] The corncobs are dried and pulverized, passed through a 60-mesh sieve, and the water content is controlled within 10% to obtain the corncob powder.
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