Feed additive with motherwort herb extract and preparation method of feed additive
A technology of motherwort extract and feed additive, which is applied in the direction of animal feed, animal feed, application, etc., to achieve the effects of no drug resistance, less waste of raw materials, and improved feed effect
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Embodiment 1
[0026] This embodiment relates to a motherwort extract feed additive; its preparation specifically includes the following steps:
[0027] Step 1. Naturally dry the motherwort leaves, remove impurities, dry at 60°C for 6 hours, crush them, pass through a sieve with a pore size of 0.6mm, add 12ml of ethanol solution per gram of motherwort, add 80wt% ethanol solution for immersion for 4 hours; add an ultrasonic extractor In the process, ultrasonically extract at room temperature and 115KHz for 45min; after the extraction is completed, filter to obtain the filtrate and solid residue a; evaporate under reduced pressure to remove the ethanol in the filtrate to obtain the first extract;
[0028] Step 2, add 8 times the amount of water to the solid residue a, boil for 5 hours, and filter at a steam pressure of 0.5 MPa to obtain the second extract and solid residue b;
[0029] Step 3, add 6 times the amount of water to the solid residue b, boil for 3 hours, and filter at a steam pressu...
Embodiment 2
[0040] The purpose of this example is to consider the influence of pH value on the dry paste rate and the extraction rate of active components in the water extraction step after ultrasonic extraction. The preparation of this example is the same as in Example 1, the difference is that in step 2, acetic acid is added to adjust the pH value of water to 5.5, 6.0, and 6.5, and in step 3, saturated sodium hydroxide is added to adjust the pH value of water to 8.0 and 8.5 , 9.0, forming 9 experimental groups; the pH values of the experimental groups 1 to 9 corresponding to steps 2 and 3 are 5.5, 8.0, 5.5, 8.5, 5.5, 9.0, 6.0, 8.0, 6.0, 8.5, 6.0, 9.0, 6.5, 8.0, 6.5, 8.5, 6.5, 9.0.
[0041] With motherwort medicinal material 100g, the present embodiment, embodiment 1 and comparative example 1 are carried out comparative test; Details are as follows:
[0042] Determination of dry paste rate: Mix and concentrate the first, second, and third extracts obtained in the above nine experiment...
Embodiment 3
[0049] This embodiment relates to a kind of motherwort extract feed additive; Its preparation is the same as embodiment 1, the difference is:
[0050] Step 1. Pass through a sieve with a pore size of 0.5 mm, add 10 ml of ethanol solution to each gram of Motherwort, add 85 wt % ethanol solution and soak for 5 hours; ultrasonically extract for 35 minutes under the condition of 110KHz;
[0051] Step 2, boil for 4 hours, steam pressure 0.4MPa;
[0052] Step 3: Boil for 5 hours, and the steam pressure is 1.7MPa.
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