{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T23:25:29Z","timestamp":1778714729541,"version":"3.51.4"},"reference-count":75,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2021,7,7]],"date-time":"2021-07-07T00:00:00Z","timestamp":1625616000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Applied Sciences"],"abstract":"<jats:p>Alginates are one of the most important compounds of brown seaweeds. These compounds are employed in the food area, because of their important rheological properties, such as viscosity, gelling, and stabilizing features and as dietary fiber source. In this study, five species of dominant brown seaweeds were collected in the Red Sea (Padina boergesenii, Turbinaria triquetra, Hormophysa cuneiformis, Dictyota ciliolata, and Sargassum aquifolium) so as to characterize the alginate yield and its properties. The analysis demonstrated differences in the alginate yield among the seaweeds. The highest yield of alginate was recorded in the species T. triquetra (22.2 \u00b1 0.56% DW), while the lowest content was observed in H. cuneiformis (13.3 \u00b1 0.52% DW). The viscosity from the alginates varied greatly between the species, whereas the pH varied slightly. The alginate exhibited a moisture content between 6.4 and 13.1%, the ash content ranged between 12.3 and 20% DW, the protein reached values from 0.57 to 1.47% DW, and the lipid concentration varied from 0.3 to 3.5% DW. Thus, the phytochemical analysis demonstrated that the extracted alginates can be safely applied in the food industry. Furthermore, the alginate yield reveals the potential application of these seaweeds as a nutraceutical raw source, which can be exploited by the food industry.<\/jats:p>","DOI":"10.3390\/app11146290","type":"journal-article","created":{"date-parts":[[2021,7,8]],"date-time":"2021-07-08T04:32:49Z","timestamp":1625718769000},"page":"6290","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":110,"title":["Evaluation and Characterization of Alginate Extracted from Brown Seaweed Collected in the Red Sea"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8531-4719","authenticated-orcid":false,"given":"Sarah H.","family":"Rashedy","sequence":"first","affiliation":[{"name":"National Institute of Oceanography and Fisheries (NIOF), Cairo 11516, Egypt"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7223-2340","authenticated-orcid":false,"given":"Mohamed S. M.","family":"Abd El Hafez","sequence":"additional","affiliation":[{"name":"National Institute of Oceanography and Fisheries (NIOF), Cairo 11516, Egypt"},{"name":"City of Scientific Research and Technological Applications, SRTA-City, New Borg El-Arab City 21934, Egypt"}]},{"given":"Mahmoud A.","family":"Dar","sequence":"additional","affiliation":[{"name":"National Institute of Oceanography and Fisheries (NIOF), Cairo 11516, Egypt"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5244-221X","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Cotas","sequence":"additional","affiliation":[{"name":"Marine and Environmental Sciences Centre (MARE), Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6819-0619","authenticated-orcid":false,"given":"Leonel","family":"Pereira","sequence":"additional","affiliation":[{"name":"Marine and Environmental Sciences Centre (MARE), Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,7,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Leandro, A., Pacheco, D., Cotas, J., Marques, J.C., Pereira, L., and Gon\u00e7alves, A.M.M. 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