Mass transfer in soybean oil extraction using ethanol/isopropyl alcohol mixtures

Enhancement of omega-3 content in sacha inchi seed oil extracted with supercritical carbon dioxide in semi-continuous process

“…Another possible reason for the different trends in oil yields obtained from ethanol extraction compared with i-propanol extraction is the difference in the rate-controlling step. In soybean oil extraction using pure ipropanol, the oil close to the particle surface is quickly removed, and after the initial stage, internal diffusion becomes the limiting step [20]. Therefore, the extracted oil yield considerably increases with time and begins to level off afterwards, which is in agreement with our results shown in Figure 3c.…”

“…Therefore, the extracted oil yield considerably increases with time and begins to level off afterwards, which is in agreement with our results shown in Figure 3c. However, the mass transfer to the external liquid phase becomes more significant and limits the overall process when the extracting solvent of soybean oil is changed to ethanol [20]. In this case, the extraction rate has been slow since the beginning, and the yield has gradually increased until it is finally similar to that of i-propanol, which corresponds to our results in Figure 3d.…”

Membrane technology for vegetable oil processing—Current status and future prospects

“…In the initial phase of pursuit for alternate solvents, the major focus had been on ethanol and isopropanol (Johnson & Lusas, 1983), owing to their greater safety and reduced probability of regulation (Lusas et al., 1990; Hron et al., 1994). Subsequent researchers evaluated a wide range of solvents belonging to class‐3 category with a variety of oilseeds (Gandhi et al., 2003; Moreau et al., 2003; Seth et al., 2007; Lohani et al., 2015; Baümler et al., 2016; Toda et al., 2016; Potrich et al., 2020; Comerlatto et al., 2021; Rodriguez et al., 2021). The extractability of solvents vastly differed with the type of oilseed.…”

Evaluation of Techniques for Intensifying the Process of the Alcoholic Extraction of Coffee Ground Oil Using Ultrasound and a Pressurized Solvent

“…In the context of vegetable oil extraction, the challenge is to replace hexane, a solvent traditionally used in industrial practice. The suggested substitute is ethanol, a less polluting solvent, with low toxicity and greater operational safety [ 8 , 9 , 10 ]. In an economic, technical, and environmental analysis performed by Potrich et al [ 8 ], the authors found that the use of ethanol in the extraction of soybean oil is economically viable.…”