Recovery of bioactive compounds from beetroot leaves by supercritical CO2 extraction as a promising bioresource

2020 ◽  
Vol 155 ◽  
pp. 104658 ◽  
Author(s):  
Rosario Goyeneche ◽  
Karina Di Scala ◽  
Cristina L. Ramirez ◽  
María A. Fanovich
2019 ◽  
Vol 147 ◽  
pp. 213-221 ◽  
Author(s):  
Sandra Pimentel-Moral ◽  
Isabel Borrás-Linares ◽  
Jesús Lozano-Sánchez ◽  
David Arráez-Román ◽  
Antonio Martínez-Férez ◽  
...  

2019 ◽  
Vol 80 ◽  
pp. 273-282 ◽  
Author(s):  
Oscar Benito-Román ◽  
Sandra Varona ◽  
María Teresa Sanz ◽  
Sagrario Beltrán

Foods ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 2201
Author(s):  
José Villacís-Chiriboga ◽  
Stefan Voorspoels ◽  
Maarten Uyttebroek ◽  
Jenny Ruales ◽  
John Van Camp ◽  
...  

The potential of supercritical CO2 (SC-CO2) for the extraction of bioactive compounds from mango by-products was assessed. Carotenoid extraction was optimized using a design of experiments based on temperature (35, 55 and 70 °C), pressure (10 and 35 MPa) and co-solvent addition (0%, 10% and 20% of ethanol or acetone). Moreover, the co-extraction of phenolic acids, flavonoids and xanthonoids was evaluated in a subset of parameters. Finally, a comparison was made between SC-CO2 and a two-step organic solvent extraction of the bioactive compounds from the pulp and peel fractions of two Ecuadorian varieties. The optimal extraction temperature was found to be dependent on the bioactive type, with phenolics requiring higher temperature than carotenoids. The optimal overall conditions, focused on maximal carotenoids recovery, were found to be 55 °C, 35 MPa and 20% of ethanol. The main carotenoid was β-carotene, while phenolics differed among the varieties. The bioactive content of the peel was up to 4.1-fold higher than in the pulp fraction. Higher antioxidant activity was found in the extracts obtained with organic solvents. SC-CO2 is a promising technology for the isolation of valuable compounds from mango by-products.


2018 ◽  
Vol 135 ◽  
pp. 78-83 ◽  
Author(s):  
Rosario Goyeneche ◽  
Alejandra Fanovich ◽  
Christian Rodriguez Rodrigues ◽  
María Celeste Nicolao ◽  
Karina Di Scala

2016 ◽  
Vol 31 ◽  
pp. 284-294 ◽  
Author(s):  
Arthur Luiz Baião Dias ◽  
Camilla Scarelli Arroio Sergio ◽  
Philipe Santos ◽  
Gerardo Fernandéz Barbero ◽  
Camila Alves Rezende ◽  
...  

Antioxidants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 918
Author(s):  
Nóra Emilia Nagybákay ◽  
Michail Syrpas ◽  
Vaiva Vilimaitė ◽  
Laura Tamkutė ◽  
Audrius Pukalskas ◽  
...  

The article presents the optimization of supercritical CO2 extraction (SFE-CO2) parameters using response surface methodology (RSM) with central composite design (CCD) in order to produce single variety hop (cv. Ella) extracts with high yield and strong in vitro antioxidant properties. Optimized SFE-CO2 (37 MPa, 43 °C, 80 min) yielded 26.3 g/100 g pellets of lipophilic fraction. This extract was rich in biologically active α- and β-bitter acids (522.8 and 345.0 mg/g extract, respectively), and exerted 1481 mg TE/g extract in vitro oxygen radical absorbance capacity (ORAC). Up to ~3-fold higher extraction yield, antioxidant recovery (389.8 mg TE/g pellets) and exhaustive bitter acid extraction (228.4 mg/g pellets) were achieved under the significantly shorter time compared to the commercially used one-stage SFE-CO2 at 10–15 MPa and 40 °C. Total carotenoid and chlorophyll content was negligible, amounting to <0.04% of the total extract mass. Fruity, herbal, spicy and woody odor of extracts could be attributed to the major identified volatiles, namely β-pinene, β-myrcene, β-humulene, α-humulene, α-selinene and methyl-4-decenoate. Rich in valuable bioactive constituents and flavor compounds, cv. Ella hop SFE-CO2 extracts could find multipurpose applications in food, pharmaceutical, nutraceutical and cosmetics industries.


2021 ◽  
Vol 46 ◽  
pp. 101458
Author(s):  
Adil Mouahid ◽  
Isabelle Bombarda ◽  
Magalie Claeys-Bruno ◽  
Sandrine Amat ◽  
Emmanuelle Myotte ◽  
...  

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