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A holistic approach to pressure almond oil production

Jose María Roncero Heras (Higher Technical School of Agricultural and Forestry Engineering, Universidad de Castilla-La Mancha–Campus de Albacete, Albacete, Spain)
Manuel Alvarez-Ortí (Higher Technical School of Agricultural and Forestry Engineering, Universidad de Castilla-La Mancha–Campus de Albacete, Albacete, Spain)
Arturo Pardo-Giménez (Centro de Investigación, Experimentación y Servicios del Champiñón, Quintanar Del Rey, Spain)
Adrián Rabadán (Higher Technical School of Agricultural and Forestry Engineering, Universidad de Castilla-La Mancha–Campus de Albacete, Albacete, Spain)
José Emilio Pardo (Higher Technical School of Agricultural and Forestry Engineering, Universidad de Castilla-La Mancha–Campus de Albacete, Albacete, Spain)
Alicia Roncero (Faculty of Economic and Business Sciences, Universidad de Castilla-La Mancha–Campus de Albacete, Albacete, Spain)

British Food Journal

ISSN: 0007-070X

Article publication date: 15 June 2022

Issue publication date: 9 February 2023

125

Abstract

Purpose

Almond oil is a gourmet product with functional food characteristics owing to its high almond oil content and high nutritional quality. One of the primary constraints on its production is the lack of information regarding oil extraction from an industrial perspective, including by-products generation.

Design/methodology/approach

The performance, quality and composition characteristics were analyzed, both from the physical-chemical and organoleptic point of view, of the almond oils obtained through two pressure systems: screw press (SP) and hydraulic press (HP). To ensure the success of almond oil production at a commercial scale, in this work, an economic study of the costs of the process was carried out as a complementary part of optimizing the production of virgin almond oil.

Findings

Physicochemical analysis showed little difference, just in total sterols (HP 2069, SP 2153) and some quality indexes (K232: HP 1.63, SP 2.13; peroxide index: HP 1.74, SP 0.95), in contrast to sensory analysis. Consumer judges valued roasted almond oil extracted using a HP the best. The production cost of the oil extracted with the SP was €23.05/l. With the HP it was €25.13/l, owing to the lower oil yield in the extraction. The most expensive treatment was for the HP with toasted almonds (€27.76/l), owing to the greater need for processing.

Originality/value

Production costs derived from the method used have received little attention. This paper presents data that allow for the transference between academic and industrial ambit and their economic viability.

Keywords

Acknowledgements

Funding: This research received no external funding.

Ethics: The present research does not include studies on human subjects, human data or tissue or animals.

Citation

Roncero Heras, J.M., Alvarez-Ortí, M., Pardo-Giménez, A., Rabadán, A., Pardo, J.E. and Roncero, A. (2023), "A holistic approach to pressure almond oil production", British Food Journal, Vol. 125 No. 3, pp. 1148-1163. https://doi.org/10.1108/BFJ-02-2022-0110

Publisher

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Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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