Assessment of the effects of collets moisture and addition of ethyl esters on the ethanolic extraction of soybean oil

Author(s)

Barbosa, Flavia da Silva ; Capellini, Maria Carolina ; Rodrigues Souza, Isabela Cecilia ; Aracava, Keila Kazue ; Basso, Rodrigo Correa ; Rodrigues, Christianne E. C.

• Document type: Journal article
• Source: Journal of Food Engineering; v. 348, p. 11-pg., 2023-02-10.

Abstract

This study evaluated ethyl esters as cosolvent of ethanol in the oil extraction from soybean collets containing two different levels of moisture (3 and 7 mass% of water). Extraction assays were performed in a fixed-bed column, at 60 and 70 degrees C, with a solid:solvent mass ratio of 1:1.5. The composition of the ethyl esters-ethanol mixture was chosen based on densities and dynamic viscosities, and Hansen solubility parameters. Using collets with 3 mass% of water and the rising temperature favored the soybean oil extraction yield. Adding 5 mass% of ethyl esters to ethanol enabled the achievement of a gain of 33% in the oil extraction yield considering collets with 7 mass% of water at 60 degrees C. The use of ethyl esters-ethanol mixture to extract soybean oil is promising, particularly when it is not possible or desirable to subject soybean collets to an additional drying process. (AU)

• FAPESP's process: 14/21252-0 - Equilibrium and production processes of biofuels and bioproducts
• Grantee: Antonio José de Almeida Meirelles
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 18/12713-5 - Effects of soybean pre-treatment on the performance of the alcoholic extraction process: yield, functionalities of the protein fraction and volatile fraction characterization
• Grantee: Maria Carolina Capellini
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 22/02434-7 - Evaluation of different ethanol co-solvents for the oil extraction from soybean collets
• Grantee: Isabela Cecília Rodrigues Souza
• Support Opportunities: Scholarships in Brazil - Scientific Initiation