TH24339B - The purification of edible oils that are high in natural carotene and vitamin E. - Google Patents

Abstract

This invention reveals a process for producing purified oils. And eliminates odors which are high in natural carotene by applying pressure to oil less than 0.060 mbar and temperature less than 200 ํ and where the process includes the process of oil refining in the distillation machine with Short path at temperature range 160 ํ to 290 ํ and at pressure of 0.003 m bar to 0.08 m bar, and free fatty acid removal (FFA) in oil by condensation inside the FFA distiller is eliminated by means of a mixture. The oil and FFA pass into an internal condenser system, which - operating at a temperature higher than the FFA's melting point in the oil. Deodorization, especially palm oil, while the carotene and vitamin E contained in the fed oil are well preserved in the processed oil.

Claims (11)

1. The process of purifying and deodorizing oil with a high natural carotene content involves subjecting crude or pre-treated oil to pressures less than 0.060 millibars and temperatures less than 200°C. This process is characterized by the following steps: a) Refining the crude or pre-treated oil at commercial rates of approximately 1000 kg/hr in a short-path distiller at temperatures ranging from 160°C to 200°C and pressures from 0.003 millibars to 0.08 millibars; and b) Removal of free fatty acids (FFA) from the oil by condensation within the distiller. This FFA removal step involves passing the oil-FFA mixture through an internal condenser operating at temperatures between the melting point of FFA and below its condensation point to immediately condense the liquid FFA vapor as the oil-FFA mixture is introduced into the distiller to produce the oil. Purified and deodorized, with a high content of natural carotene, containing the lowest levels of carotene and vitamin E (90%) in the pre-treated oil before being fed into the distillation unit, and with an FFA of less than 0.1%. 2. The process of producing purified and deodorized oil with a high natural carotene content involves subjecting crude or pre-treated oil to pressures less than 0.060 millibars and temperatures less than 200°C. This process is characterized by the following steps: a) Refining the crude or pre-treated oil at commercial rates of approximately 2000 kg/cm² in a short-path distiller at temperatures ranging from 160°C to 200°C and pressures from 0.003 millibars to 0.08 millibars; and b) Removal of free fatty acids (FFA) from the oil by condensation within the distiller. This FFA removal step involves passing the oil-FFA mixture through an internal condenser operating at temperatures between the melting point and below the FFA condensation point to immediately condense the liquid FFA vapor as the oil-FFA mixture enters the distiller, producing purified and deodorized oil with a high natural carotene content. This oil has the lowest levels of carotene and vitamin E, with 90% found in the pre-conditioned oil before being fed into the distillation unit, and an FFA of less than 0.1%. 3. The process of purifying and deodorizing oil with a high amount of natural carotene involves subjecting crude or pre-treated oil to a pressure of less than 0.060 millibars and a temperature of less than 200°C, resulting in its unique characteristics. The process includes the following steps: a) refining of crude oil or pre-conditioned oil at commercial rates of 1000 kg/hr to 2000 kg/hr in a short-path distiller at temperatures ranging from 160°C to 200°C and pressures from 0.003 mlbar to 0.08 mlbar; and b) removal of free fatty acids (FFA) from the oil by condensation within the distiller. This FFA removal step involves passing the oil-FFA mixture through an internal condenser operating at temperatures between the melting point and below the FFA condensation point to immediately condense the liquid FFA vapor as the oil-FFA mixture is fed into the distiller. This produces a purified and deodorized oil with a high content of natural carotene, containing at least 90% carotene and vitamin E, which is present in the pre-conditioned oil before being fed into the distiller. It enters the distillation process and has an FFA of less than 0.1%. 4. The process as specified in Claim 1, 2, or 3, whereby the oil is heated to 160°C and the gases are removed. 5. The process as specified in claim 4, whereby the oil is degassed in a degassing unit with a condenser that performs reverse distillation. 6. The process as described in Reputation 1, 2, or 3, whereby the internal condenser operates in conjunction with the flow of coolant, and whereby the temperature of the coolant is slightly above the melting point of the FFA. 7. The process as specified in Claim 1, 2, or 3, where the oil is degreased and bleached. 8. The process as specified in Claim 1, 2, or 3, where the oil is crude palm oil or pre-treated palm oil. 9. The process specified in Claim 8 shall select oils from degummed and bleached palm oil, degummed and bleached palm olein, degummed and bleached palm stearin, crude palm olein, crude palm stearin, degummed and bleached palm intermediate fraction, degummed and bleached palm crude superolein, crude palm intermediate fraction, palm superolein, crude palm oil or palm oil blends. 10. The oil purification process as per claim 1, 2, or 3 shall be carried out under vacuum using a vacuum system protected by multiple cold traps with different cooling coils capable of independently varying temperatures from -15°C to +5°C during operation and up to 60°C during defrosting. 11. The process as described in Claim 1, 2, or 3, where the operating temperature of the internal condenser is approximately 57°C.