PROCESS FOR DEWAXING CITRUS OILS

A process for transforming and removing latent sediment-forming components from citrus oils to supplement a dewaxing process for the citrus oils. Psoralen epoxides in citrus oils are converted to diols in an accelerated and controlled manner. The epoxide-to-diol transformation is effected by mixing...

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Bibliographic Details
Main Authors RADFORD, TERENCE, OLANSKY, AD S
Format Patent
LanguageEnglish
French
German
Published 10.01.2001
Edition7
Subjects
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
CANDLES
CHEMISTRY
DETERGENTS
ESSENTIAL OILS
FATTY ACIDS THEREFROM
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
PERFUMES
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS
SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
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Summary:A process for transforming and removing latent sediment-forming components from citrus oils to supplement a dewaxing process for the citrus oils. Psoralen epoxides in citrus oils are converted to diols in an accelerated and controlled manner. The epoxide-to-diol transformation is effected by mixing citrus oil with an aqueous acidic treatment solution under conditions (i.e., solution pH and volume) and for a sufficient period of time to convert substantially all of the psoralen epoxides. The diols formed thereby are precipitated and/or preferentially dissolved in the aqueous phase during mixing. Upon separation of the aqueous phase from the oil, the citrus oil is substantially free of psoralen epoxides. By this method, epoxides are inexpensively eliminated from the citrus oils, resulting in an improved product having, for example, reduced sedimentation potential and reduced phototoxicity.
Bibliography:Application Number: EP19940920285