Valorization of Agro-Industrial Wastes by Ultrasound-Assisted Extraction as a Source of Proteins, Antioxidants and Cutin: A Cascade Approach
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/126421
Título: | Valorization of Agro-Industrial Wastes by Ultrasound-Assisted Extraction as a Source of Proteins, Antioxidants and Cutin: A Cascade Approach |
---|---|
Autor/es: | Mellinas-Ciller, Ana-Cristina | Solaberrieta, Ignacio | Pelegrín, Carlos Javier | Jiménez, Alfonso | Garrigós, María del Carmen |
Grupo/s de investigación o GITE: | Análisis de Polímeros y Nanomateriales |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología |
Palabras clave: | Ultrasound-assisted extraction | Agro-industrial peel wastes | Active compounds | Cascade extraction approach |
Fecha de publicación: | 1-sep-2022 |
Editor: | MDPI |
Cita bibliográfica: | Mellinas C, Solaberrieta I, Pelegrín CJ, Jiménez A, Garrigós MC. Valorization of Agro-Industrial Wastes by Ultrasound-Assisted Extraction as a Source of Proteins, Antioxidants and Cutin: A Cascade Approach. Antioxidants. 2022; 11(9):1739. https://doi.org/10.3390/antiox11091739 |
Resumen: | The use of agro-industrial wastes to obtain compounds with a high added-value is increasing in the last few years in accordance with the circular economy concept. In this work, a cascade extraction approach was developed based on ultrasound-assisted extraction (UAE) for tomato, watermelon, and apple peel wastes. The protein and antioxidant compounds were obtained during the first extraction step (NaOH 3 wt.%, 98.6 W, 100% amplitude, 6.48 W/cm2, 6 min). The watermelon peels (WP) showed higher proteins and total phenolic contents (857 ± 1 mg BSA/g extract and 107.2 ± 0.2 mg GAE/100 g dm, respectively), whereas the highest antioxidant activity was obtained for apple peels (1559 ± 20 µmol TE/100 g dm, 1767 ± 5 µmol TE/100 g dm, and 902 ± 16 µmol TE/100 g dm for ABTS, FRAP and DPPH assays, respectively). The remaining residue obtained from the first extraction was subsequently extracted to obtain cutin (ethanol 40 wt.%, 58 W, 100% amplitude, 2 W/cm2, 17 min, 1/80 g/mL, pH 2.5). The morphological studies confirmed the great efficiency of UAE in damaging the vegetal cell walls. WP showed a higher non-hydrolysable cutin content (55 wt.% of the initial cutin). A different monomers’ profile was obtained for the cutin composition by GC-MS, with the cutin from tomato and apple peels being rich in polyhydroxy fatty acids whereas the cutin extracted from WP was mainly based on unsaturated fatty acids. All of the cutin samples showed an initial degradation temperature higher than 200 °C, presenting an excellent thermal stability. The strategy followed in this work has proved to be an effective valorization methodology with a high scaling-up potential for applications in the food, pharmaceutical, nutraceutical, cosmetics and biopolymer sectors. |
Patrocinador/es: | This research was funded by the Bio-Based Industries Joint Undertaking under the European Union Horizon 2020 research program (BBI-H2020), ECOFUNCO project, grant number G.A 837863. |
URI: | http://hdl.handle.net/10045/126421 |
ISSN: | 2076-3921 |
DOI: | 10.3390/antiox11091739 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/antiox11091739 |
Aparece en las colecciones: | INV - NANOBIOPOL - Artículos de Revistas Investigaciones financiadas por la UE |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Mellinas_etal_2022_Antioxidants.pdf | 2 MB | Adobe PDF | Abrir Vista previa | |
Este ítem está licenciado bajo Licencia Creative Commons