Projects per year
Abstract
The aim of this study was to investigate the potential of potato proteins and peptides as emulsifiers in the microencapsulation of fish oil by spray-drying. Microcapsules were produced using a potato protein extract, and fractions enriched in patatin and protease inhibitors. Furthermore, bioinformatically predicted emulsifier peptides from abundant potato proteins and a hydrolysate, obtained through targeted proteolysis of the extract, were investigated. During 28 days of storage at 25C, peptides and hydrolysate exhibited better emulsifying properties and higher encapsulation efficiencies compared to native proteins and sodium caseinate. Significant differences (p < 0.05) were observed in the peroxide value (PV) and secondary volatile oxidation products between the microcapsules produced with peptides and native proteins. Microcapsules produced with peptides and hydrolysate showed the highest oxidative stability, not exceeding a PV of 10 meq/kg oil, and with concentrations of volatiles below the odor threshold in oil for five of the six studied compounds. These results show the emulsifying potential of potato peptides and hydrolysate for use in microencapsulation of hydrophobic bioactive ingredients such as fish oil.
Original language | English |
---|---|
Publisher | bioRxiv |
DOIs | |
Publication status | Published - 20 Nov 2022 |
Bibliographical note
CopyrightThe copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
Fingerprint
Dive into the research topics of 'Bioinformatically predicted emulsifying peptides and potato protein hydrolysate improves the oxidative stability of microencapsulated fish oil'. Together they form a unique fingerprint.Projects
- 1 Finished
-
PROVIDE: Protein valorization through informatics, hydrolysis, and separation
Gregersen, S. (CoI), Overgaard, M. T. (CoPI), Hansen, E. B. (PI), Bang-Berthelsen, I. (Project Coordinator), Jacobsen, C. (CoPI), García Moreno, P. J. (CoI), Marcatili, P. (CoPI) & Yesiltas, B. (CoI)
01/09/2017 → 30/12/2022
Project: Research