Jennifer Peterson, Richard Carlson, Bruce Richter, and David Knowles, Dionex Corporation
Traditional solvent extraction techniques use large volumes of solvent (typically several hundred milliliters) and long extraction times (8–16 h) to remove oil from the seeds. Once the oil is removed, the weight percent of the oil seeds can be determined, and the composition of the oils can be studied.Accelerated Solvent Extraction (ASE® ) uses high temperature and pressure to reduce the extraction time and solvent usage for solvent extraction. ASE has proven to be an effective technique for the extraction of oil from oilseeds.
Results and Discussion
The weight percent of oil in the seeds was determined to be 44.9% with 0.31% RSD (n = 3) with ASE as compared to 45.2% with 0.24% RSD (n = 12) for the AOCS method. The weight of oil extracted per unit time is contrasted for ASE and the FOSFA procedure (see Figure 1).
The data shows that ASE can be used effectively to extract oil from oilseeds. The data generated are equivalent to those obtained by existing methods, but time and solvent usage are significantly less with ASE (Table II).
ASE is a registered trademark of Dionex Corporation.