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| Number | Title | Issue Date |
| 6072092 | Recovery of carotenes A process for the recovery of carotenes and the production of carotene concentrate from natural oils and fats. The carotene-containing natural oils and fats is subjected to alcoholic esterification to form a mixture of fatty acid alkyl esters, carotenes, ... | 06/06/2000 |
| 5190618 | Production of high concentration tocopherols and tocotrienols from palm-oil by-products A process for the production of tocopherols (T) and tocotrienols (T3) from palm fatty acid distillates (PFAD). The process includes converting free fatty acids and glycerides in PFAD into alkyl esters, then separating T and T3 from the alkyl esters and ot... | 03/02/1993 |
| 5019668 | Recovery of carotenoids A process for the recovery of carotenes and the production of carotene concentrates from palm oil. Esterified palm oil containing carotenes, or other solutions containing carotenes, is mixed with an edible oil, part by part. The resulting mixture is subje... | 05/28/1991 |
