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US 7,119,238 B2Granted
Process for purification and crystallization of palm oil carotenoids
AssigneeUniversity of Maryland
InventorFrederick Khachik
Life of this patent
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Abstract
Disclosed is a process for purification of a mixture of carotenoids from palm oil concentrate to produce a crystalline mixture of a α-carotene, β-carotene, γ-carotene, and ε,ε-carotene as well as a product enriched in geometrical isomers of a β-carotene (9-cis-β-carotene, 13-cis-β-carotene) and α-carotene as well as ε,ε-carotene and γ-carotene.
Claims13
A process for isolation of a mixture of carotenes from palm oil, comprising, dissolving the palm oil in an organic solvent, saponifying the organic solution of the said palm oil with an alcoholic solution of a mineral base;
- washing the organic layer with water containing about 10–20% alcohol until the base is removed, separating and concentrating the resultant organic phase comprising isolated carotenes;
- and washing the separated carotenes with an alcohol thereby obtaining crystallized carotenes.
Dependencies are inferred from the claim text.