Invasive Seaweed <i>Rugulopteryx okamurae</i>: A Potential Source of Bioactive Compounds with Antioxidant Activity
<i>Rugulopteryx okamurae</i> (RO) is a species of brown seaweed that has invaded several shorelines worldwide, including the Spanish Mediterranean and the Strait of Gibraltar coasts, causing serious environmental and economic problems. This work aimed to characterize the bioactive compos...
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2024-10-01
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| Series: | Antioxidants |
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| Online Access: | https://www.mdpi.com/2076-3921/13/11/1298 |
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| author | Radia N. A. Belhadj Cristina Mellinas Alfonso Jiménez César Bordehore Maria Carmen Garrigós |
| author_facet | Radia N. A. Belhadj Cristina Mellinas Alfonso Jiménez César Bordehore Maria Carmen Garrigós |
| author_sort | Radia N. A. Belhadj |
| collection | DOAJ |
| description | <i>Rugulopteryx okamurae</i> (RO) is a species of brown seaweed that has invaded several shorelines worldwide, including the Spanish Mediterranean and the Strait of Gibraltar coasts, causing serious environmental and economic problems. This work aimed to characterize the bioactive composition of RO. A high content of carbohydrates (58.7 ± 2.6 wt%), fats (17.1 ± 0.4 wt%), and ashes (14.3 ± 0.2 wt%) were found, together with lower protein content (5.5 ± 1.8 wt%). Holocellulose was the most abundant polysaccharide fraction (49.2 ± 1.3 wt%), showing 43.4 ± 2.0 wt% of cellulose and 5.8 ± 0.7 wt% of hemicellulose, followed by lignin (18.9 ± 2.5 wt%). The monosaccharides composition showed a high level of glucose (13.2 ± 1 wt%) and glucuronic acid (9.3 ± 0.5 wt%). RO contained high levels of essential nutrients (Ca, K, Na, S, Mg), trace minerals (Mn, Mo, Se, and Cu), and some toxic heavy metals (Ni, Cd, As). The main fatty acid present in RO was palmitic acid (C16:0, 30.8 ± 3.0 mg/100 g), followed by myristic acid (C14:0, 19.3 ± 2.4 mg/100 g) and eicosatetraenoic acid (C20:4, 19.2 ± 1.3 mg/100 g). The extract obtained by microwave-assisted extraction (MAE) presented significant contents of polyphenols (2.7 ± 0.2 mg GAE/g) and antioxidant activity (3.0 ± 0.4 mg TE/g DPPH, 4.5 ± 0.3 mg TE/g ABTS, 4.7 ± 0.3 mg TE/g FRAP). Six main polyphenols were identified by HPLC-MS/MS, showing higher contents of gallic acid (20.7 ± 1.5 mg/g) and chlorogenic acid (9.7 ± 0.5 mg/g). These results highlight the possibilities offered in the valorization of RO to obtain bioactive compounds with antioxidant performance in several applications. |
| format | Article |
| id | doaj-art-cb1561d31fb345529803cd548f976432 |
| institution | OA Journals |
| issn | 2076-3921 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Antioxidants |
| spelling | doaj-art-cb1561d31fb345529803cd548f9764322025-08-20T01:53:42ZengMDPI AGAntioxidants2076-39212024-10-011311129810.3390/antiox13111298Invasive Seaweed <i>Rugulopteryx okamurae</i>: A Potential Source of Bioactive Compounds with Antioxidant ActivityRadia N. A. Belhadj0Cristina Mellinas1Alfonso Jiménez2César Bordehore3Maria Carmen Garrigós4Department of Analytical Chemistry, Nutrition & Food Sciences, University of Alicante, San Vicente del Raspeig, 03690 Alicante, SpainDepartment of Analytical Chemistry, Nutrition & Food Sciences, University of Alicante, San Vicente del Raspeig, 03690 Alicante, SpainDepartment of Analytical Chemistry, Nutrition & Food Sciences, University of Alicante, San Vicente del Raspeig, 03690 Alicante, SpainDepartment of Ecology, University of Alicante, 03690 Alicante, SpainDepartment of Analytical Chemistry, Nutrition & Food Sciences, University of Alicante, San Vicente del Raspeig, 03690 Alicante, Spain<i>Rugulopteryx okamurae</i> (RO) is a species of brown seaweed that has invaded several shorelines worldwide, including the Spanish Mediterranean and the Strait of Gibraltar coasts, causing serious environmental and economic problems. This work aimed to characterize the bioactive composition of RO. A high content of carbohydrates (58.7 ± 2.6 wt%), fats (17.1 ± 0.4 wt%), and ashes (14.3 ± 0.2 wt%) were found, together with lower protein content (5.5 ± 1.8 wt%). Holocellulose was the most abundant polysaccharide fraction (49.2 ± 1.3 wt%), showing 43.4 ± 2.0 wt% of cellulose and 5.8 ± 0.7 wt% of hemicellulose, followed by lignin (18.9 ± 2.5 wt%). The monosaccharides composition showed a high level of glucose (13.2 ± 1 wt%) and glucuronic acid (9.3 ± 0.5 wt%). RO contained high levels of essential nutrients (Ca, K, Na, S, Mg), trace minerals (Mn, Mo, Se, and Cu), and some toxic heavy metals (Ni, Cd, As). The main fatty acid present in RO was palmitic acid (C16:0, 30.8 ± 3.0 mg/100 g), followed by myristic acid (C14:0, 19.3 ± 2.4 mg/100 g) and eicosatetraenoic acid (C20:4, 19.2 ± 1.3 mg/100 g). The extract obtained by microwave-assisted extraction (MAE) presented significant contents of polyphenols (2.7 ± 0.2 mg GAE/g) and antioxidant activity (3.0 ± 0.4 mg TE/g DPPH, 4.5 ± 0.3 mg TE/g ABTS, 4.7 ± 0.3 mg TE/g FRAP). Six main polyphenols were identified by HPLC-MS/MS, showing higher contents of gallic acid (20.7 ± 1.5 mg/g) and chlorogenic acid (9.7 ± 0.5 mg/g). These results highlight the possibilities offered in the valorization of RO to obtain bioactive compounds with antioxidant performance in several applications.https://www.mdpi.com/2076-3921/13/11/1298<i>Rugulopteryx okamurae</i>invasive seaweedbioactive compoundsantioxidant activityvalorization |
| spellingShingle | Radia N. A. Belhadj Cristina Mellinas Alfonso Jiménez César Bordehore Maria Carmen Garrigós Invasive Seaweed <i>Rugulopteryx okamurae</i>: A Potential Source of Bioactive Compounds with Antioxidant Activity Antioxidants <i>Rugulopteryx okamurae</i> invasive seaweed bioactive compounds antioxidant activity valorization |
| title | Invasive Seaweed <i>Rugulopteryx okamurae</i>: A Potential Source of Bioactive Compounds with Antioxidant Activity |
| title_full | Invasive Seaweed <i>Rugulopteryx okamurae</i>: A Potential Source of Bioactive Compounds with Antioxidant Activity |
| title_fullStr | Invasive Seaweed <i>Rugulopteryx okamurae</i>: A Potential Source of Bioactive Compounds with Antioxidant Activity |
| title_full_unstemmed | Invasive Seaweed <i>Rugulopteryx okamurae</i>: A Potential Source of Bioactive Compounds with Antioxidant Activity |
| title_short | Invasive Seaweed <i>Rugulopteryx okamurae</i>: A Potential Source of Bioactive Compounds with Antioxidant Activity |
| title_sort | invasive seaweed i rugulopteryx okamurae i a potential source of bioactive compounds with antioxidant activity |
| topic | <i>Rugulopteryx okamurae</i> invasive seaweed bioactive compounds antioxidant activity valorization |
| url | https://www.mdpi.com/2076-3921/13/11/1298 |
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