Abstract
Aqueous oil extraction is a technology with great potential in the oil industry because it offers a number of advantages compared to conventional solvent extraction. This chapter discusses the aqueous extraction process. The aqueous extraction process has already been used successfully and commercially for virgin olive oil and avocado oil production. The aqueous extraction process has made recent advances to become a modern technology with the incorporation of modern efficient separation techniques and the application of processing aids such as exogenous enzymes. Each raw material source requires different handling practices prior to the formation of a pulp-water-oil paste, which is mixed to aid oil release from the oil containing cells. After this point, very similar technologies can be used to separate the oil from the aqueous phase and solids. Aqueous extraction of oils combined with centrifugation can produce high quality oils with unique and desirable organoleptic characteristics without the use of solvents. With good processing management, the production of waste streams can also be reduced.
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