Physicochemical characteristics and fatty acids composition of crude oil extracted from blackberry (<i>Rubus glaucus</i> Benth) residues

David García; Alfredo Viloria-Matos; Douglas Belén; Mario José Moreno-Álvarez

doi:10.3989/gya.2003.v54.i3.240

Physicochemical characteristics and fatty acids composition of crude oil extracted from blackberry (Rubus glaucus Benth) residues

Authors

David García Universidad Simón Rodríguez, Ingeniería de Alimentos, Laboratorio de Biomoléculas
Alfredo Viloria-Matos Universidad Simón Rodríguez, Ingeniería de Alimentos, Laboratorio de Biomoléculas
Douglas Belén Universidad Simón Rodríguez, Ingeniería de Alimentos, Laboratorio de Biomoléculas
Mario José Moreno-Álvarez Universidad Simón Rodríguez, Ingeniería de Alimentos, Laboratorio de Biomoléculas

DOI:

https://doi.org/10.3989/gya.2003.v54.i3.240

Keywords:

Blackberry, Oil, Proximate composition, Residues, Rubus glaucus

Abstract

In this research the physicochemical characteristics and fatty acids composition of oil extracted from blackberry (Rubus glaucus Benth) residue were determined. Mature fruits from ‘‘La Colonia Tovar’’, Aragua state, Venezuela harvested on April 2001, were processed to obtain seeds and residues of pulp. This residue was extracted with n-hexane (Soxhlet method). The crude oil was assayed by means of COVENIN and AOCS methods. The results showed: Iodine index 160.16 cg I₂/g, refraction index to 25ºC 1.4780 , saponification value 193.76 mg K0H/g, peroxide value 30.40 meq 0₂/kg, free fatty acidity 2.83% (oleic acid), insaponifiable value 2.77%, phosphorus content 0.22% and stability 3.09 h (AOM). The major fatty acids found were oleic acid (55.39%) and linoleic acid (29.51%).

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Published

2003-09-30

How to Cite

García D, Viloria-Matos A, Belén D, Moreno-Álvarez MJ. Physicochemical characteristics and fatty acids composition of crude oil extracted from blackberry (Rubus glaucus Benth) residues. Grasas aceites [Internet]. 2003Sep.30 [cited 2025Feb.23];54(3):259-63. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/240

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Issue

Vol. 54 No. 3 (2003)

Section

Research

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