Abstract
The coroba ( Jessenia polycarpa Karst ) is an autochthonous plant from the Cedeno Municipality, Bolivar State, in Venezuela, whose fruit forms part of the culinary tradition of the region. The objective of this investigation was to determine the physical-chemical characteristics of the oil from the seed of the coroba, in order to establish its possible uses. The proximate analysis of the seeds separated from mature fruits was as follows: humidity (10.16 0.04 %), fat (58.21 0.04%), raw fiber (21.64 0.07%), ash (2.21 0.09%). Oil extracted from the seeds with organic solvent (n-hexane) showed the following values: iodine value ( 5.78 0.04 cg I2/g), peroxide index (1.22 0.04 meq O 2 /kg), free acidity (0.255% as lauric acid), refraction index at 20 °C (1.4515), phosphorus content (115.5 4.9 ppm). The fatty acid profile of the oil showed lauric acid (41.75%) as the major component. These results suggest that coroba oilseed can be considered as a potential substitute for coconut and palmiste oils.
Highlights
The coroba (Jessenia polycarpa Karst) is an autochthonous plant from the Cedeño Municipality, Bolívar State, in Venezuela, whose fruit forms part of the culinary tradition of the region
La almendra del fruto de la coroba presentó valores de contenido de proteínas semejantes a los mínimos recomendados por COVENIN para harina de arroz (7%), maíz (7%) y trigo (8%); no obstante es conveniente determinar la composición en aminoácidos presentes, que pudiera indicar la calidad de dichas proteínas
No se detectó contenido de carbohidratos en las muestras ensayadas, pudiendo estar enmascarados en los valores de fibra cruda obtenidas como carbohidratos no asimilables (Ranquen, 1993)
Summary
The coroba (Jessenia polycarpa Karst) is an autochthonous plant from the Cedeño Municipality, Bolívar State, in Venezuela, whose fruit forms part of the culinary tradition of the region. The objective of this investigation was to determine the physical-chemical characteristics of the oil from the seed of the coroba, in order to establish its possible uses. The fatty acid profile of the oil showed lauric acid (41.75%) as the major component. These results suggest that coroba oilseed can be considered as a potential substitute for coconut and palmiste oils.
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