Water Extraction Kinetics of Bioactive Compounds of <i>Fucus vesiculosus</i>
Brown macroalgae, particularly those from <i>Fucus</i> genus, are a rich and balanced source of bioactive nutrients and phytochemicals, such as dietary fibres (fucoidans, laminarins, and/or alginates), phlorotannins, and fucoxanthin, and some minerals, such as iodine, which have been dem...
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| Format: | Article |
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MDPI AG
2019-09-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/24/18/3408 |
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| author | Ricardo M. Ferreira Ana Ramalho Ribeiro Carla Patinha Artur M. S. Silva Susana M. Cardoso Rui Costa |
| author_facet | Ricardo M. Ferreira Ana Ramalho Ribeiro Carla Patinha Artur M. S. Silva Susana M. Cardoso Rui Costa |
| author_sort | Ricardo M. Ferreira |
| collection | DOAJ |
| description | Brown macroalgae, particularly those from <i>Fucus</i> genus, are a rich and balanced source of bioactive nutrients and phytochemicals, such as dietary fibres (fucoidans, laminarins, and/or alginates), phlorotannins, and fucoxanthin, and some minerals, such as iodine, which have been demonstrated to possess numerous health-promoting properties. In fact, aqueous extracts of <i>Fucus vesiculosus</i> have been used as food supplements due to its rich content in bioactive compounds, though no study has been published on the optimization of this operation. Therefore, this study aimed to evaluate the impact of different extraction temperatures (25 °C, 50 °C, 75 °C, 100 °C, and 120 °C) and times (5 min, 1 h, 2 h, and 4 h) on the recovery of those bioactive compounds. The temperature was observed to positively influence the extraction of crude mass and of fucose polysaccharides only at 75 °C and above, and of iodine extraction at 50 °C and above. At these temperatures, time also showed to increase yields. Yields of crude extract, fucose, and iodine were successfully mathematically modelled with a power law, and its maximum yields were obtained at the highest temperature studied (120 °C) and longest extraction time (4 h). Iodine yield at these conditions provided extracts with relevant content to contribute to the recommended daily ingestion. Phlorotannins were significantly recovered at 120 °C though evidence of degradation was observed during time. |
| first_indexed | 2024-04-13T17:37:36Z |
| format | Article |
| id | doaj.art-31e9524360414136aeb1f2b9289fb149 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-04-13T17:37:36Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-31e9524360414136aeb1f2b9289fb1492022-12-22T02:37:18ZengMDPI AGMolecules1420-30492019-09-012418340810.3390/molecules24183408molecules24183408Water Extraction Kinetics of Bioactive Compounds of <i>Fucus vesiculosus</i>Ricardo M. Ferreira0Ana Ramalho Ribeiro1Carla Patinha2Artur M. S. Silva3Susana M. Cardoso4Rui Costa5 QOPNA and LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal Polytechnic Institute of Coimbra, College of Agriculture, Research Centre for Natural Resources, Environment and Society (CERNAS), Bencanta, 3045-601 Coimbra, Portugal GEOBIOTEC, Department of Geoscience, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal QOPNA and LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal QOPNA and LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal Polytechnic Institute of Coimbra, College of Agriculture, Research Centre for Natural Resources, Environment and Society (CERNAS), Bencanta, 3045-601 Coimbra, PortugalBrown macroalgae, particularly those from <i>Fucus</i> genus, are a rich and balanced source of bioactive nutrients and phytochemicals, such as dietary fibres (fucoidans, laminarins, and/or alginates), phlorotannins, and fucoxanthin, and some minerals, such as iodine, which have been demonstrated to possess numerous health-promoting properties. In fact, aqueous extracts of <i>Fucus vesiculosus</i> have been used as food supplements due to its rich content in bioactive compounds, though no study has been published on the optimization of this operation. Therefore, this study aimed to evaluate the impact of different extraction temperatures (25 °C, 50 °C, 75 °C, 100 °C, and 120 °C) and times (5 min, 1 h, 2 h, and 4 h) on the recovery of those bioactive compounds. The temperature was observed to positively influence the extraction of crude mass and of fucose polysaccharides only at 75 °C and above, and of iodine extraction at 50 °C and above. At these temperatures, time also showed to increase yields. Yields of crude extract, fucose, and iodine were successfully mathematically modelled with a power law, and its maximum yields were obtained at the highest temperature studied (120 °C) and longest extraction time (4 h). Iodine yield at these conditions provided extracts with relevant content to contribute to the recommended daily ingestion. Phlorotannins were significantly recovered at 120 °C though evidence of degradation was observed during time.https://www.mdpi.com/1420-3049/24/18/3408<i>Fucus sp.</i>brown macroalgaewater extractionbioactivefucoidanphlorotanninkinetics |
| spellingShingle | Ricardo M. Ferreira Ana Ramalho Ribeiro Carla Patinha Artur M. S. Silva Susana M. Cardoso Rui Costa Water Extraction Kinetics of Bioactive Compounds of <i>Fucus vesiculosus</i> Molecules <i>Fucus sp.</i> brown macroalgae water extraction bioactive fucoidan phlorotannin kinetics |
| title | Water Extraction Kinetics of Bioactive Compounds of <i>Fucus vesiculosus</i> |
| title_full | Water Extraction Kinetics of Bioactive Compounds of <i>Fucus vesiculosus</i> |
| title_fullStr | Water Extraction Kinetics of Bioactive Compounds of <i>Fucus vesiculosus</i> |
| title_full_unstemmed | Water Extraction Kinetics of Bioactive Compounds of <i>Fucus vesiculosus</i> |
| title_short | Water Extraction Kinetics of Bioactive Compounds of <i>Fucus vesiculosus</i> |
| title_sort | water extraction kinetics of bioactive compounds of i fucus vesiculosus i |
| topic | <i>Fucus sp.</i> brown macroalgae water extraction bioactive fucoidan phlorotannin kinetics |
| url | https://www.mdpi.com/1420-3049/24/18/3408 |
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