Venenum bufonis extract with anti-infection action and preparation method thereof
An extract and anti-infection technology, applied in the field of toad venom extract and its preparation, can solve the problems of restricting the application of toad venom drugs, unclear types and content, etc., and achieve good quality control, low cytotoxicity, active ingredient types and content clear effect
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Embodiment 1
[0024] Embodiment 1 has the preparation of the toad venom extract of anti-infection effect
[0025] (1) Take 100 g of toad venom and add 1 L of ethanol aqueous solution with a volume fraction of 95%, soak at 25°C for 3 days, and filter to obtain the ethanol extract;
[0026] (2) Concentrate the ethanol extract until it has no alcohol smell, and then use a non-polar macroporous resin column to enrich the active ingredients of bufotoxins;
[0027] The specific method for enriching the active ingredients of bufatoxins in the non-polar macroporous resin column is as follows: after loading the ethanol extract on the non-polar macroporous resin column (D101 macroporous resin column), first elute with water to remove Miscellaneous, and then use 80% ethanol to elute the non-polar macroporous resin column; collect ethanol eluted parts, concentrate and dry to obtain the extract.
[0028] After testing, the active ingredients of bufotoxins in the extract prepared in this example account...
Embodiment 2
[0032] Example 2 The preparation of the extract of toad venom with anti-infective effect
[0033] (1) Take 100 g of toad venom and add 1 L of ethanol aqueous solution with a volume fraction of 95%, soak at 25°C for 3 days, and filter to obtain the ethanol extract;
[0034] (2) Concentrate the ethanol extract until it has no alcohol smell, and then use a non-polar macroporous resin column to enrich the active ingredients of bufotoxins;
[0035] The specific method for enriching the active ingredients of bufatoxins in the non-polar macroporous resin column is as follows: after loading the ethanol extract on the non-polar macroporous resin column (D101 macroporous resin column), first elute with water to remove Miscellaneous, and then use 60% ethanol to elute the non-polar macroporous resin column; collect ethanol eluted parts, concentrate and dry to obtain the extract.
[0036] After testing, the active ingredients of bufotoxins in the extract prepared in this example accounted...
Embodiment 3
[0037] Example 3 The preparation of the extract of toad venom with anti-infective effect
[0038] (1) Add 100 g of toad venom to 1 L of 80% ethanol aqueous solution, soak at 25°C for 2 days, and filter to obtain the ethanol extract;
[0039] (2) Concentrate the ethanol extract until it has no alcohol smell, and then use a non-polar macroporous resin column to enrich the active ingredients of bufotoxins;
[0040] The specific method for enriching the active ingredients of bufatoxins in the non-polar macroporous resin column is as follows: after loading the ethanol extract on the non-polar macroporous resin column (D101 macroporous resin column), first elute with water to remove Miscellaneous, and then use 40% ethanol to elute the non-polar macroporous resin column; collect ethanol eluted parts, concentrate and dry to obtain the extract.
[0041] After testing, the active ingredients of bufotoxins in the extract prepared in this example accounted for 45% of the total weight of ...
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