Preparation method for schefflera arboricola hayata total saponins
A technology for extracting total saponins of Aescinus aesculus, which is applied in the field of extracting total saponins of Aesculus aesculus, can solve the problems of small batch, unsuitable for scale-up, low purity, etc., achieve simple steps, save solvent consumption, reduce The effect of environmental stress
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Embodiment 1
[0013] Take 10Kg of Aescinus rhizome powder, add 100L 90% ethanol to reflux and extract 3 times, each time for 1.5 hours, combine the extracts, filter, recover ethanol under reduced pressure and concentrate, add petroleum ether to degrease, add water to the residue to make up to 10L , concentrated by HNF40-8040 nanofiltration membrane, dried the concentrated solution into a solid, added acetone to recrystallize twice, and dried to obtain 18.2 g of pale yellow escin, with a purity of 85.3% by HPLC.
Embodiment 2
[0015] Take 10Kg of rhizome powder of Aescinus chinensis, add 120L of 60% ethanol to reflux and extract twice, each time for 1.5 hours, combine the extracts, filter, recover ethanol under reduced pressure and concentrate, add petroleum ether to degrease, add water to the residue to make up to 15L , concentrated by HNF70-8040 nanofiltration membrane, the concentrated solution was dried to a solid, added acetone to recrystallize 3 times, and dried to obtain 19.9 g of light yellow total saponins of Aesculus aescini, the purity of which was 84.8% by HPLC.
Embodiment 3
[0017] Take 10Kg of rhizome powder of Aescinus chinensis, add 110L 80% ethanol to reflux and extract 3 times, each time for 1.5 hours, combine the extracts, filter, recover ethanol under reduced pressure and concentrate, add petroleum ether to degrease, add water to the residue to make up to 20L , concentrated by HNF90-8040 nanofiltration membrane, the concentrated solution was dried to a solid, added acetone to recrystallize twice, and dried to obtain 18.8 g of light yellow total saponins of Aesculus aescini, the purity of which was 83.9% by HPLC.
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