Abstract
The baru (Dipteryx alata Vogel) is a fruit of the Brazilian Cerrado, composed of a pleasant-tasting almond with a high oil content. The consumption of vegetable oils is suggested by the World Health Organization, but vegetable oils lack protection when extracted from their food matrix. Thus, the hydrocolloids Arabic gum (AG) and maltodextrin (MD) as well as the partially defatted cake (PDC), a co-product of the baru cold-pressed oil, were used to produce baru oil microparticles by spray drying. Fatty acid profile, emulsion stability, microparticle quality, and oxidative stability were evaluated. Baru oil is rich in omega-9 (47.3%). AG/MD (25% maltodextrin) showed better emulsion stability after 1 h of preparation, higher zeta potential (− 28.87 mV ± 0.026) and encapsulation efficiency (76.72% ± 0.002), and lower peroxide content after 4 weeks at 60 °C (28.38 meq/kg). The addition of PDC improved the efficiency parameters in relation to the standard formulation (AG). The replacement of 25% of AG by MD improved the emulsion and microparticles’ characteristics and better protected the baru oil against oxidation. Through a well-known technique, this study found technological use for a co-product of the extraction of baru oil and made good use of maltodextrin, a hydrocolloid with a lower relative cost.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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The authors also thank the State University of Campinas (Brazil) for infrastructure and support.
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This work was supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) – DCL [grant number 131555/2019–7]; NHN [grant number 131589/2019–9], and APFG [grant number 140319/2017–4].
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Orientation: Rodney Alexandre Ferreira Rodrigues; supervision: Angela del Pilar Flores Granados; idea conception: Nathan Hargreaves Noguera; development: Dyana Carla Lima.
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Lima, D.C., Noguera, N.H., del Pilar Flores Granados, A. et al. Hydrocolloids and Partially Defatted Cake on Encapsulation of Baru Oil (Dipteryx alata Vogel): a Study on Emulsion, Particle, and Oxidative Stability. Food Bioprocess Technol 16, 2598–2610 (2023). https://doi.org/10.1007/s11947-023-03087-0
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DOI: https://doi.org/10.1007/s11947-023-03087-0