Abstract
In this work, surfactant-modified starches were prepared by reactive extrusion (REX) and used as stabilizers for olive oil-in-water Pickering emulsions. The referred starches are waxy maize starch phosphate (P-MS), octenyl succinic anhydride maize starch (OSA-MS), and octenyl succinic anhydride rice starch (OSA-RS). Pickering emulsions were emulsified by microfluidization and spray-dried to evaluate the efficiency of encapsulation and the protective effect of starch derivatives in the encapsulated olive oil. Results showed that OSA-RS presented the smallest particle size and the most electronegative \(\zeta\)-potential. Among the considered starches, OSA-RS possesses the best characteristics as surfactant to improve emulsification and digestibility of oil-in-water Pickering emulsions. On the other hand, P-MS has the ideal properties to be used as wall material for spray drying to increase oil stability and reduce digestibility of microcapsules.



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Data Availability Statement
Raw data were generated at the IPN facilities. Derived data supporting the findings of this study are available from the corresponding author upon request.
Abbreviations
- OSA-MS:
-
Octenyl Succinic Anhydride Maize Starch
- SD-OSA-MS:
-
Spray-Dried O/W emulsions of Octenyl Succinic Anhydride Maize Starch
- OSA-RS:
-
Octenyl Succinic Anhydride Rice Starch
- SD-OSA-RS:
-
Spray-Dried O/W Octenyl Succinic Anhydride Rice Starch
- P-MS:
-
waxy maize starch phosphate
- SD-P-MS:
-
Spray-Dried O/W waxy maize starch phosphate
- EVOO:
-
Extra Virgin Olive Oil
- REX:
-
Reactive Extrusion
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Acknowledgements
The authors acknowledge the experimental support of the CNMN-IPN for the realization of the present work. This research was funded by SIP projects: 20211607 (Y.V.G.-T.) and 20211671 (V.B.-F.).
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Espinosa-Solís, V., García-Tejeda, Y.V., Portilla-Rivera, O.M. et al. Tailoring Olive Oil Microcapsules via Microfluidization of Pickering o/w Emulsions. Food Bioprocess Technol 14, 1835–1843 (2021). https://doi.org/10.1007/s11947-021-02673-4
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DOI: https://doi.org/10.1007/s11947-021-02673-4


