Tuning the Bioactive Properties of <i>Dunaliella salina</i> Water Extracts by Ultrasound-Assisted Extraction
(1) Background: Microalgae are promising feedstock for obtaining valuable bioactive compounds. To facilitate the release of these important biomolecules from microalgae, effective cell disruption is usually necessary, where the use of ultrasound has achieved considerable popularity as an alternative...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Marine Drugs |
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| Online Access: | https://www.mdpi.com/1660-3397/21/9/472 |
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| author | Joana P. A. Ferreira Madalena Grácio Isabel Sousa António Pagarete M. Cristiana Nunes Anabela Raymundo |
| author_facet | Joana P. A. Ferreira Madalena Grácio Isabel Sousa António Pagarete M. Cristiana Nunes Anabela Raymundo |
| author_sort | Joana P. A. Ferreira |
| collection | DOAJ |
| description | (1) Background: Microalgae are promising feedstock for obtaining valuable bioactive compounds. To facilitate the release of these important biomolecules from microalgae, effective cell disruption is usually necessary, where the use of ultrasound has achieved considerable popularity as an alternative to conventional methods. (2) Methods: This paper aims to evaluate the use of ultrasound technology in water medium as a green technology to recover high added-value compounds from <i>Dunaliella salina</i> and improve its sensory profile towards a high level of incorporation into novel food products. (3) Results: Among the variables, the solid concentration and extraction time have the most significant impact on the process. For the extraction of protein, or fat, the most influential factor is the extraction time. Total polyphenols are only significantly affected by the extraction time. The antioxidant capacity is strongly affected by the solid to liquid ratio and, to a small extent, by the extraction time. Ultrasound-assisted extraction improves the overall odor/aroma of <i>D. salina</i> with good acceptability by the panelists. (4) Conclusions: The application of ultrasonic-assisted extraction demonstrates a positive overall effect on enhancing the sensory profile, particularly the odor of microalgal biomass, while the bioactive properties are preserved. Notably, the intense sea/fish odors are reduced, while earthy and citrus notes become more prominent, resulting in an improved overall sensory profile score. This is the first time, to our knowledge, that this innovative, green, and efficient technology has been used to upgrade the aroma profile of microalgae. |
| first_indexed | 2024-03-10T22:31:21Z |
| format | Article |
| id | doaj.art-b2d3886a9f5f4366a877adf15dead655 |
| institution | Directory Open Access Journal |
| issn | 1660-3397 |
| language | English |
| last_indexed | 2024-03-10T22:31:21Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Marine Drugs |
| spelling | doaj.art-b2d3886a9f5f4366a877adf15dead6552023-11-19T11:42:04ZengMDPI AGMarine Drugs1660-33972023-08-0121947210.3390/md21090472Tuning the Bioactive Properties of <i>Dunaliella salina</i> Water Extracts by Ultrasound-Assisted ExtractionJoana P. A. Ferreira0Madalena Grácio1Isabel Sousa2António Pagarete3M. Cristiana Nunes4Anabela Raymundo5LEAF—Linking Landscape, Environment, Agriculture and Food—Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, PortugalLEAF—Linking Landscape, Environment, Agriculture and Food—Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, PortugalLEAF—Linking Landscape, Environment, Agriculture and Food—Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, PortugalPagarete Microalgae Solutions Soc. Unipessoal Lda., Rua João Chagas, 4, 7Esq, 1495-069 Algés, PortugalLEAF—Linking Landscape, Environment, Agriculture and Food—Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, PortugalLEAF—Linking Landscape, Environment, Agriculture and Food—Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal(1) Background: Microalgae are promising feedstock for obtaining valuable bioactive compounds. To facilitate the release of these important biomolecules from microalgae, effective cell disruption is usually necessary, where the use of ultrasound has achieved considerable popularity as an alternative to conventional methods. (2) Methods: This paper aims to evaluate the use of ultrasound technology in water medium as a green technology to recover high added-value compounds from <i>Dunaliella salina</i> and improve its sensory profile towards a high level of incorporation into novel food products. (3) Results: Among the variables, the solid concentration and extraction time have the most significant impact on the process. For the extraction of protein, or fat, the most influential factor is the extraction time. Total polyphenols are only significantly affected by the extraction time. The antioxidant capacity is strongly affected by the solid to liquid ratio and, to a small extent, by the extraction time. Ultrasound-assisted extraction improves the overall odor/aroma of <i>D. salina</i> with good acceptability by the panelists. (4) Conclusions: The application of ultrasonic-assisted extraction demonstrates a positive overall effect on enhancing the sensory profile, particularly the odor of microalgal biomass, while the bioactive properties are preserved. Notably, the intense sea/fish odors are reduced, while earthy and citrus notes become more prominent, resulting in an improved overall sensory profile score. This is the first time, to our knowledge, that this innovative, green, and efficient technology has been used to upgrade the aroma profile of microalgae.https://www.mdpi.com/1660-3397/21/9/472<i>Dunaliella salina</i>ultrasoundextractionbioactivitiessensory analysis |
| spellingShingle | Joana P. A. Ferreira Madalena Grácio Isabel Sousa António Pagarete M. Cristiana Nunes Anabela Raymundo Tuning the Bioactive Properties of <i>Dunaliella salina</i> Water Extracts by Ultrasound-Assisted Extraction Marine Drugs <i>Dunaliella salina</i> ultrasound extraction bioactivities sensory analysis |
| title | Tuning the Bioactive Properties of <i>Dunaliella salina</i> Water Extracts by Ultrasound-Assisted Extraction |
| title_full | Tuning the Bioactive Properties of <i>Dunaliella salina</i> Water Extracts by Ultrasound-Assisted Extraction |
| title_fullStr | Tuning the Bioactive Properties of <i>Dunaliella salina</i> Water Extracts by Ultrasound-Assisted Extraction |
| title_full_unstemmed | Tuning the Bioactive Properties of <i>Dunaliella salina</i> Water Extracts by Ultrasound-Assisted Extraction |
| title_short | Tuning the Bioactive Properties of <i>Dunaliella salina</i> Water Extracts by Ultrasound-Assisted Extraction |
| title_sort | tuning the bioactive properties of i dunaliella salina i water extracts by ultrasound assisted extraction |
| topic | <i>Dunaliella salina</i> ultrasound extraction bioactivities sensory analysis |
| url | https://www.mdpi.com/1660-3397/21/9/472 |
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