Virgin almond oilExtraction methods and composition

  1. Roncero, J. M.
  2. Álvarez-Ortí, M.
  3. Pardo-Giménez, A.
  4. Gómez, R.
  5. Rabadán, A.
  6. Pardo, J. E.
Revista:
Grasas y aceites

ISSN: 0017-3495,  1988-4214

Ano de publicación: 2016

Volume: 67

Número: 3

Tipo: Artigo

DOI: 10.3989/GYA.0993152 DIALNET GOOGLE SCHOLAR lock_openAcceso aberto editor

Outras publicacións en: Grasas y aceites

Resumo

In this paper the extraction methods of virgin almond oil and its chemical composition are reviewed. The most common methods for obtaining oil are solvent extraction, extraction with supercritical fluids (CO2) and pressure systems (hydraulic and screw presses). The best industrial performance, but also the worst oil quality is achieved by using solvents. Oils obtained by this method cannot be considered virgin oils as they are obtained by chemical treatments. Supercritical fluid extraction results in higher quality oils but at a very high price. Extraction by pressing becomes the best option to achieve high quality oils at an affordable price. With regards chemical composition, almond oil is characterized by its low content in saturated fatty acids and the predominance of monounsaturated, especially oleic acid. Furthermore, almond oil contains antioxidants and fat-soluble bioactive compounds that make it an oil with interesting nutritional and cosmetic properties.

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