• What is solvent extraction method?
  • The solvent extraction method is a common extraction method for oilseeds with low oil content (less than 20%), such as soybean. This process is thought to be one of the most efficient in terms of extracting vegetable oil, as it leaves little residual oil in the cake or meal , .
  • What are the different methods of oil extraction?
  • The traditional methods of oil extraction are solvent extraction and mechanical expression, both of which are well-known and widely used. The two processes, or a mixture of the two, are used to extract many seed oils. This category could also include rendering ; however, it is not as common.
  • Are supercritical CO2 & enzyme-assisted extractions a viable alternative to solvent extraction?
  • Supercritical CO 2 (SCO 2) and enzyme-assisted extractions are alternatives to solvent extraction and expeller pressing, which are considered traditional oil extraction methods. This review includes studies on oil extractions of seeds that were published between 2010 until the present day, with the exception of a few studies that are older.
  • Do extraction methods affect the environment?
  • Yet, there is limited information on the environmental impacts between extraction methods. An LCA study on mustard seed oil demonstrated that extraction via pressing had significantly lower environmental impacts than a combination of pressing and solvent use.
  • How to improve oil extraction yield & quality?
  • Several parameters need to be considered to improve oil extraction yield and quality, and one such example is screw rotation. When using a pilot expeller press designed for cold pressing, increasing rotation from 1.2 to 18 rpm increased press capacity from 2.2 kg seed/h to 29.4 seed/h, while decreasing canola oil yields from 91 to 84% .
  • Can waste cooking oil be used for biodiesel production?
  • This study evaluated waste cooking oil (WCO) for environmentally friendly biodiesel production using three transesterification methods: conventional, ultrasound, and microwave. Ultrasound with NaOH as a catalyst achieved a yield of 99.7%, microwave had 94.4% conversion, and conventional had the lowest productivity at 79%.