Process of extracting shikimic acid from aniseed
A technology of shikimic acid and star anise, applied in the field of physical separation, can solve problems such as low extraction yield, low resin exchange capacity, serious pollution and the like
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Embodiment 1
[0025] Take 50 kg of star anise medicinal material (the content of the medicinal material is 6%), crush it into a coarse powder, add 250L of water to boil, heat for 1 hour to extract, filter, add 150L of water to boil, heat for 1 hour, then filter, add 100L of water to boil, heat for 1 hour Filter and combine the extracts. The extract is subjected to microfiltration under a pressure of 0.8 MPa. The microfiltration membrane adopts a microporous membrane with a cut-off relative molecular weight of more than 70,000 to remove impurities such as water-soluble protein, pectin, and suspended solids in the solution. The filtrate obtained by microfiltration was subjected to ultrafiltration under a pressure of 1.0 MPa, and a hollow fiber ultrafiltration membrane with a cut-off relative molecular weight of 20,000 was selected to separate shikimic acid from other components. The filtrate obtained by microfiltration was concentrated by sodium filtration under a pressure of 1.5 MPa. When co...
Embodiment 2
[0028] Take 50 kg of star anise medicinal material (the content of the medicinal material is 6%), crush it into a coarse powder, add 250L of water to boil, keep warm for 1 hour to extract, filter, add 200L of water to boil, keep warm for 1 hour, then filter, add 150L of water to boil, keep warm for 1 hour Filter and combine the extracts. The extract is subjected to microfiltration under a pressure of 0.2 MPa. The microfiltration membrane adopts a microporous membrane with a cut-off relative molecular weight of more than 70,000 to remove impurities such as water-soluble protein, pectin, and suspended matter in the solution. The filtrate obtained by microfiltration was subjected to ultrafiltration under a pressure of 0.8 MPa, and a hollow fiber ultrafiltration membrane with a cut-off relative molecular weight of 3000 was selected to separate shikimic acid from other components. The filtrate obtained by microfiltration was concentrated by sodium filtration under a pressure of 1.2...
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