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US 2021/0331997 A1Published application
Method for separating trans isomeric crocetin from cis isomeric crocetin
AssigneeHuanwen RAO
InventorHuanwen RAO
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Abstract
A method for separating trans isomer crocetin from cis isomer crocetin is provided. The method comprises crystallizing all-trans crocetin with calcium ions first by using different binding capabilities between cis and trans isomeric crocetin to calcium ions and acidifying the all-trans crocetin to obtain 13-cis crocetin.
Claims11
A method for separating trans isomeric crocetin from cis isomeric crocetin, comprising:
- crystallizing all-trans crocetin with calcium ions first by using different binding capabilities between cis and trans isomeric crocetin to calcium ions and, obtaining 13-cis crocetin via acidification.
Dependencies are inferred from the claim text.