Effect of the extraction method and bleaching on jojoba (Simmondsia chinensis) wax quality.

LORENA TOBARES,; ALBERTO GUZMAN, CARLOS; DAMIAN MODESTO MAESTRI

EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY

Wiley

Año: 2003 vol. 105 p. 749 - 753

1438-7697

The aim of the work was to evaluate the effect of the extraction method and bleaching on the quality of jojoba waxes from Argentina. Jojoba waxes obtained by cold pressing, Golden wax (expeller-pressed wax) and Lite wax (bleached wax) were analyzed using standard methods adopted as recommended practices by the American Oil Chemist Society. Physical parameters, fatty acid and alcohol compositions were unchanged among waxes. Cold-pressed wax was noteworthy by its lower peroxide value, higher amounts of tocopherol and total phenol contents. Accordingly, it presented the best oxidative stability. Bleaching caused a strong decrease in both tocopherol and phenol contents; consequently the bleached wax showed poor oxidative stability.