Expeller pressing of passion fruit seed oil: Pressing efficiency and quality of oil

Abstract The passion fruit juice production generates around 70% of by-products comprising rind, seeds and arils that are commonly discarded. consist 4% weight with the potential to produce 2,500 ton/year high added-value oil in Brazil. In this work, from different manufacturers effect seed moisture were evaluated towards quality extraction efficiency, using a continuous expeller press 100 kg/h capacity. washed dried before pressing. main fatty acids detected linoleic (67% 68%), oleic (16% 17.4%) palmitic (11%). recovery depended on content, i.e., pressing provenances seeds. Significant differences observed for oxidative stability, acidity conjugated dienes (p < 0.05) oils manufacturers. Among them, only one met requirements Brazilian regulation regarding (less than 2%), thus indicating need an effective waste treatment process after extraction. Regarding moisture, highest Oil Stability Index (OSI) (7.4 h) lowest free acid content (0.63%) obtained content. varied 78% 89% cake was lower 8% showing elements feasibility obtain good oil.