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Optimization of Ultrasound-Assisted Extraction of Bioactive Compounds from Pelvetia canaliculata to Sunflower Oil
In this study, Pelvetia canaliculata L. macroalga, collected from the Atlantic Portuguese coast, was used as a source of bioactive compounds, mostly antioxidants, to incorporate them in sunflower oil with the aim of increasing its biological value and oxidative stability. The lyophilized alga was ad...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8391403/ https://www.ncbi.nlm.nih.gov/pubmed/34441510 http://dx.doi.org/10.3390/foods10081732 |
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author | Sousa, Gabriela Trifunovska, Marija Antunes, Madalena Miranda, Isabel Moldão, Margarida Alves, Vítor Vidrih, Rajko Lopes, Paula Allen Aparicio, Luis Neves, Marta Tecelão, Carla Ferreira-Dias, Suzana |
author_facet | Sousa, Gabriela Trifunovska, Marija Antunes, Madalena Miranda, Isabel Moldão, Margarida Alves, Vítor Vidrih, Rajko Lopes, Paula Allen Aparicio, Luis Neves, Marta Tecelão, Carla Ferreira-Dias, Suzana |
author_sort | Sousa, Gabriela |
collection | PubMed |
description | In this study, Pelvetia canaliculata L. macroalga, collected from the Atlantic Portuguese coast, was used as a source of bioactive compounds, mostly antioxidants, to incorporate them in sunflower oil with the aim of increasing its biological value and oxidative stability. The lyophilized alga was added to the oil, and ultrasound-assisted extraction (UAE) was performed. Algae concentration and UAE time varied following a central composite rotatable design (CCRD) to optimize extraction conditions. The following parameters were analyzed in the oils: oxidation products, acidity, color, chlorophyll pigments, carotenoids, flavonoids, total phenolic content, antioxidant activity by DPPH (2,2-diphenyl-1-picrylhydrazyl) and FRAP (ferric reducing antioxidant power) assays, and sensory analysis. Extraction conditions did not affect the acidity and the amount of oxidation products in the oil. Chlorophylls and carotenoid contents increased with algae concentration, while flavonoid extraction did not depend on algae content or UAE time. Total phenolics in the oil were highly related only to FRAP antioxidant activity. Storage experiments of supplemented oil (12.5% algae; 20 min UAE) were carried out under accelerated oxidation conditions at 60 °C/12 days. Antioxidant activity (FRAP) of supplemented oil was 6-fold higher than the value of non-supplemented oil. Final samples retained 40% of their initial antioxidant activity. The presence of algae extracts contributed to the increased oxidative stability of sunflower oil. |
format | Online Article Text |
id | pubmed-8391403 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-83914032021-08-28 Optimization of Ultrasound-Assisted Extraction of Bioactive Compounds from Pelvetia canaliculata to Sunflower Oil Sousa, Gabriela Trifunovska, Marija Antunes, Madalena Miranda, Isabel Moldão, Margarida Alves, Vítor Vidrih, Rajko Lopes, Paula Allen Aparicio, Luis Neves, Marta Tecelão, Carla Ferreira-Dias, Suzana Foods Article In this study, Pelvetia canaliculata L. macroalga, collected from the Atlantic Portuguese coast, was used as a source of bioactive compounds, mostly antioxidants, to incorporate them in sunflower oil with the aim of increasing its biological value and oxidative stability. The lyophilized alga was added to the oil, and ultrasound-assisted extraction (UAE) was performed. Algae concentration and UAE time varied following a central composite rotatable design (CCRD) to optimize extraction conditions. The following parameters were analyzed in the oils: oxidation products, acidity, color, chlorophyll pigments, carotenoids, flavonoids, total phenolic content, antioxidant activity by DPPH (2,2-diphenyl-1-picrylhydrazyl) and FRAP (ferric reducing antioxidant power) assays, and sensory analysis. Extraction conditions did not affect the acidity and the amount of oxidation products in the oil. Chlorophylls and carotenoid contents increased with algae concentration, while flavonoid extraction did not depend on algae content or UAE time. Total phenolics in the oil were highly related only to FRAP antioxidant activity. Storage experiments of supplemented oil (12.5% algae; 20 min UAE) were carried out under accelerated oxidation conditions at 60 °C/12 days. Antioxidant activity (FRAP) of supplemented oil was 6-fold higher than the value of non-supplemented oil. Final samples retained 40% of their initial antioxidant activity. The presence of algae extracts contributed to the increased oxidative stability of sunflower oil. MDPI 2021-07-27 /pmc/articles/PMC8391403/ /pubmed/34441510 http://dx.doi.org/10.3390/foods10081732 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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/). |
spellingShingle | Article Sousa, Gabriela Trifunovska, Marija Antunes, Madalena Miranda, Isabel Moldão, Margarida Alves, Vítor Vidrih, Rajko Lopes, Paula Allen Aparicio, Luis Neves, Marta Tecelão, Carla Ferreira-Dias, Suzana Optimization of Ultrasound-Assisted Extraction of Bioactive Compounds from Pelvetia canaliculata to Sunflower Oil |
title | Optimization of Ultrasound-Assisted Extraction of Bioactive Compounds from Pelvetia canaliculata to Sunflower Oil |
title_full | Optimization of Ultrasound-Assisted Extraction of Bioactive Compounds from Pelvetia canaliculata to Sunflower Oil |
title_fullStr | Optimization of Ultrasound-Assisted Extraction of Bioactive Compounds from Pelvetia canaliculata to Sunflower Oil |
title_full_unstemmed | Optimization of Ultrasound-Assisted Extraction of Bioactive Compounds from Pelvetia canaliculata to Sunflower Oil |
title_short | Optimization of Ultrasound-Assisted Extraction of Bioactive Compounds from Pelvetia canaliculata to Sunflower Oil |
title_sort | optimization of ultrasound-assisted extraction of bioactive compounds from pelvetia canaliculata to sunflower oil |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8391403/ https://www.ncbi.nlm.nih.gov/pubmed/34441510 http://dx.doi.org/10.3390/foods10081732 |
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