| Autor: |
Torres-Sánchez E; Facultad de Ciencias Agrarias, Universidad Nacional de Colombia, Carrera 30 No. 45-03, Bogotá 111321, Colombia., Hernández-Ledesma B; Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM, CEI-UAM+CSIC), Nicolás Cabrera 9, 28049 Madrid, Spain., Gutiérrez LF; Instituto de Ciencia y Tecnología de Alimentos, Universidad Nacional de Colombia, Carrera 30 No. 45-03 Edificio 500A, Bogotá 111321, Colombia. |
| Jazyk: |
angličtina |
| Zdroj: |
Foods (Basel, Switzerland) [Foods] 2023 Jun 17; Vol. 12 (12). Date of Electronic Publication: 2023 Jun 17. |
| DOI: |
10.3390/foods12122401 |
| Abstrakt: |
The growing interest in plant-based food protein sources has provided opportunities for the valorization of agri-food by-products, driving the food industry towards more sustainable development. In this study, three extraction procedures (varying the pH value (7.0 and 11.0) and the addition of salt (0 and 5%)) were investigated to obtain seven different protein fractions (SIPF) from Sacha Inchi oil press-cake (SIPC), which were characterized in terms of their protein content, electrophoretic profile, secondary structure, and techno-functional properties. Extractions at pH 11.0 without salt addition produced the highest values of protein content, extraction yield, protein recovery, and protein concentration increase (84.0%, 24.7%, 36.5%, and 1.5-fold, respectively). Under these extraction conditions, the electrophoretic analysis indicated that most of the SIPC proteins were extracted. SIPF displayed an excellent oil absorption capacity (4.3-9.0 w / w ), and interesting foam activity (36.4-133.3%). The solubility and emulsifying activity of the albumin fractions were significantly higher than those of the other fractions (~87 vs. <15.8%, and 280-370 vs. <140 m 2 /g, respectively). Correlation analysis showed that the secondary structure of the SIPF significantly influences their techno-functional properties. These results indicate that SIPC is a by-product of great potential for protein extraction processes, and as a valorization strategy for technical cycle solutions for the Sacha Inchi productive chain in the circular economy context. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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