Supercritical Extraction of Linseed Oil: Economical Viability and Modeling Extraction Curves

作者：Galvao Elisangela Lopes; Martinez Julian; Maia De Oliveira Humberto Neves; Bittencourt Dutra De Sousa Elisa Maria

来源：Chemical Engineering Communications, 2013, 200(2): 205-221.

DOI：10.1080/00986445.2012.699482

• Carbon dioxide
• Flaxseed
• Linum usitatissimum L.
• Linseed oil
• Manufacturing cost

The aim of the present study was to use supercritical technology to recover linseed oil (Linum usitatissimum L.) using carbon dioxide (alone or modified with ethanol as solvent) to determine the influence of the technique on the chemical composition of the oil obtained, model the kinetic curves of extraction, and estimate the manufacturing cost of the process. The experiments were conducted at 323 K, pressure of 25 MPa, constant solvent flow of 1.7 x 10(-5) kg/s, and extraction time of 5 h. The highest yield was obtained with the addition of cosolvent (28.8%). The SFE process of linseed oil manufacture proved to be economically viable, resulting in a product with a specific cost of 13.21 US$/kg(oil). As to oil composition, the main fatty acids detected were linolenic and oleic acid.

• 出版日期2013