Piperine - Wikipedia, the free encyclopedia:
"Piperine is commercially available only in limited quantities for research purposes. If desired, it may be extracted from black pepper using dichloromethane.[2] Aqueous hydrotopes can also be used in the extraction to result in high yield and selectivity.[3]
The amount of piperine varies from 1-2% in long pepper, to 5-10% in commercial white and black peppers.
[4] Further, it may be prepared by treating the solvent-free residue from an alcoholic extract of black pepper, with a solution of potassium hydroxide to remove resin (said to contain chavicine, an isomer of piperine) and solution of the washed, insoluble residue in warm alcohol, from which the alkaloid crystallises on cooling.[5]"
"Piperine is commercially available only in limited quantities for research purposes. If desired, it may be extracted from black pepper using dichloromethane.[2] Aqueous hydrotopes can also be used in the extraction to result in high yield and selectivity.[3]
The amount of piperine varies from 1-2% in long pepper, to 5-10% in commercial white and black peppers.
[4] Further, it may be prepared by treating the solvent-free residue from an alcoholic extract of black pepper, with a solution of potassium hydroxide to remove resin (said to contain chavicine, an isomer of piperine) and solution of the washed, insoluble residue in warm alcohol, from which the alkaloid crystallises on cooling.[5]"
