Deacidification of Vegetable Oils by Solvent Extraction
A three-stage crosscurrent extraction using a solvent at 88.6 wt.% of ethanol (global solvent/oil ratio: 8.0 g/g) reduced the free fatty acid content from 5.8% OA eq. (in crude walnut oil) to 0.3
The deacidi- that solvent to crude oil flow ratio of at least 2 is used and fication by solvent extraction involves at least three Deacidification of Vegetable Oils by Solvent Extraction Recent Patents on Engineering 2007, Vol. 1, No. 1 101 equipments, a liquid-liquid extraction column, a stripper for Sengupta R, Bhattacharyya DK, Effect
Deacidification of Vegetable Oils by Solvent Extraction
Keywords: Oil deacidification; ethanol; free fatty acid extraction; isopropanol or n-propanol; oil extraction; oil refining; short chain alcohols; vegetable oil or edible oil Document Type: Research Article Affiliations: Faculty of Food Engineering State University of Campinas (UNICAMP) P.O. Box 6121 Zip Code 13083-862 Campinas SP Brazil. Publication date: 01 February 2007
A chromatographic process for deacidification of vegetable oils at ambient temperature. According to the process, which can be retrofitted into deacidification operations using miscella refining or solvent extraction, crude vegetable oil is dissolved in a solvent such as isopropyl alcohol and passed through a column of activated alumina (aluminum oxide) at room temperature.
Deacidification of corn germ oil by solvent extraction in a
The deacidification of corn germ oil by continuous liquid-liquid extraction was investigated in a rotating disc column. The solvent was ethanol containing approximately 6% water. The influence of rotor speed, oil phase flow, and column geometry upon the dispersed phase holdup and the mass transfer efficiency was studied. The dispersed phase holdup increased with the increase of rotor speed and oil
Deacidification of Soybean Oil Combining Solvent Extraction and Membrane Technology oil deacidification. From the analysis of the results in the C.Pagliero,N.Ochoa,J.Marchese,andM.Mattea,“Vegetable oil degumming with polyimide and polyvinylidenefluoride
Deacidification of soybean oil combining solvent
Jan 01, 2013· The results of this study show that membrane technology combined with solvent extraction is effective in the soybean oil deacidification. From the analysis of the results in the extraction of the oil FFAs, we can conclude that the best condition corresponds to the separation time of 30 minutes and ethanol/oil ratio of 1.8: 1 w: w for the two
The method chosen for oil extraction depends on the nature of the raw material, as well as on the capacity of the industrial plant. Pressing followed by solvent extrac-tion is the method most widely employed for handling a wide variety of oilseeds (Young et al., 1994), which con-tribute nearly 50% of the total vegetable oil produced in the world.
EXTRACTION/FRACTIONATION AND DEACIDIFICATION OF
Supercritical CO2 extraction of vegetable oils from plant materials is an alternative process to solvent extraction. This technique has several well-known advantages: CO2 is a nontoxic, nonflammable, nonexplosive and low-cost gas. It is also easily removed from the solute by reducing the pressure and
This alternative deacidification process by liquid–liquid extraction uses ethanol, a generally recognized as safe (GRAS) solvent, which allows minimizing the losses of nutraceutical compounds present in the oil. In fact, this study provides data that can be used to design a renewable solvent‐based soybean oil deacidification process.