Characterization of Sacha Inchi Seed Oil (Plukenetia Volubilis) from "Canton San Vicente, Manabí, Ecuador", obtained by Non-Thermal Extrusion Processes

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Carlos Jefferson Valdiviezo
Luis Eduardo Romero Hidalgo
Stefanie Michelle Bonilla Bermeo


Sacha Inchi, extrusion, peroxide index, unsaturated fatty acid, iodine index


Sacha Inchi (Plukenetia Volubilis) (SI) is a plant native from Peru. The fruit of this plant is an oilseed than contains a high content of oil, this oil is rich in unsaturated fatty acids (91.6%) being one of the seeds that contain this type of fat in greater percentage. For the extraction of this oil, the extrusion method was used, using an endless screw that allows the increase of the pressure in the dough, separating the oil contained within the seed, and the dry mass leaves the extruder. For this, an experimental extractor was adapted and put into operation to obtain this oil, extracting it at room temperature. To analyze the physicochemical characteristics of the seed, moisture, fiber, ash, fat and protein analyzes was obtained. Once the oil was obtained, the yields was calculated, and the following analyzes were performed: acid index, relative density, iodine value, peroxide index and fatty acid profile. Those results were compared with analysis made to olive and fish oil, which are known for their high content of fatty acids, resulting that Sacha Inchi oil is better both in quality indexes, as in percentage of unsaturated fatty acids.
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