Preparation method of acetylisovaleryl tylosin tartrate premix
A technology of tyvalomectin and tartaric acid, which is applied in the field of preparation of tyvanectin tartrate premix, and can solve the problems such as the bitter taste of tyvanectin tartrate
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Embodiment 1
[0020] A kind of preparation method of tyvalactin tartrate premix of the present embodiment comprises the following steps:
[0021] (1) Preparation of tyvalin tartrate suspension
[0022] Dissolve hydroxypropyl methylcellulose, propylene glycol, and xanthan gum in purified water, add tyvalactin tartrate crude drug and stir, and the percentages of the consumption of each raw material to the total weight of raw materials are: hydroxypropyl methylcellulose 42.5 %, 2.5% propylene glycol, 10% xanthan gum, 25% tylvalosin tartrate, 20% purified water, stirred and dissolved to obtain tyvalosin tartrate suspension.
[0023] (2) Centrifugal spray drying
[0024] Tivalamectin tartrate is centrifugally spray-dried in the screw pump spray tower, the inlet air temperature is set at 140°C, the outlet air temperature is 70°C, and the atomizer frequency is 30HZ. The material is collected by cyclone separation, and then passed through an 80-mesh sieve to obtain a tyvalin tartrate premix.
Embodiment 2
[0026] A kind of preparation method of tyvalactin tartrate premix of the present embodiment comprises the following steps:
[0027] (1) Preparation of tyvalin tartrate suspension
[0028] Dissolve polyacrylic resin Ⅳ, PVP-K30, and gum arabic in purified water, add tyvalectin tartrate raw material and stir, and the percentages of the amount of each raw material to the total weight of raw materials are: acrylic resin 12.5%, PVP-K30 0.5% , 2% gum arabic, 5% tyvalosin tartrate, 80% purified water, stir and dissolve to obtain tyvalosin tartrate suspension.
[0029] (2) Centrifugal spray drying
[0030] Tivalamectin tartrate is centrifugally spray-dried in the screw pump spray tower, the inlet air temperature is set at 180°C, the outlet air temperature is 90°C, and the atomizer frequency is 50HZ. The material is collected by cyclone separation, and then passed through an 80-mesh sieve to obtain a tyvalin tartrate premix.
Embodiment 3
[0032] A kind of preparation method of tyvalactin tartrate premix of the present embodiment comprises the following steps:
[0033] (1) Preparation of tyvalin tartrate suspension
[0034] Dissolve carboxymethylcellulose, propylene glycol, and gelatin in purified water, add tyvalactin tartrate crude drug and stir, and the consumption of each raw material accounts for the percentage of total raw material weight respectively: carboxymethylcellulose 30%, propylene glycol 2%, 5% gelatin, 20% tyvalomectin tartrate, and 43% purified water were stirred and dissolved to obtain a tilvalin tartrate suspension.
[0035] (2) Centrifugal spray drying
[0036] Tivalamectin tartrate is centrifugally spray-dried in the screw pump spray tower, the inlet air temperature is set at 160°C, the outlet air temperature is 80°C, and the atomizer frequency is 40HZ. The material is collected by cyclone separation, and then passed through an 80-mesh sieve to obtain a tyvalin tartrate premix.
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