Effect of Oven-Drying on the Recovery of Valuable Compounds from <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i>
The effect of oven-drying at 25, 40 and 60 °C was evaluated on three macroalgae of relevance in Europe, namely <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i>, with respect to quality aspects, including their potential to be exploit...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-02-01
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| Series: | Marine Drugs |
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| Online Access: | https://www.mdpi.com/1660-3397/17/2/90 |
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| author | Andreia F.R. Silva Helena Abreu Artur M.S. Silva Susana M. Cardoso |
| author_facet | Andreia F.R. Silva Helena Abreu Artur M.S. Silva Susana M. Cardoso |
| author_sort | Andreia F.R. Silva |
| collection | DOAJ |
| description | The effect of oven-drying at 25, 40 and 60 °C was evaluated on three macroalgae of relevance in Europe, namely <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i>, with respect to quality aspects, including their potential to be exploited as a source of valuable compounds. Notably, as compared to freeze-drying, oven-drying at 25 °C promoted the extraction of chlorophylls and carotenoids from <i>U. rigida</i>, as well as those of phycoerythrin and chlorophyll <i>a</i> from <i>Gracilaria</i> sp., while 40 °C favored the recovery of fucoxanthin and pheophytin <i>a</i> from <i>F. vesiculosus</i>. On the other hand, the use of oven-drying had a negative impact on the extraction of phenolic compounds from this alga, also diminishing the antioxidant activity of the resulting extracts. Instead, the impact of oven-drying of raw material on the recovery of specific polysaccharides differed among the macroalgae. While the amounts of ulvans and fucoidans obtained from macroalgae dried at higher temperatures tended to be superior, the recovery of agar was not affected with the drying temperatures applied to <i>Gracilaria</i> sp. The overall results showed that oven-drying might serve as a good alternative to stabilize <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i>, especially if extraction of pigments and polysaccharides is aimed, thought the appropriate temperature applied must be adapted for each macroalgae. |
| first_indexed | 2024-04-13T00:26:26Z |
| format | Article |
| id | doaj.art-2569e699f55244c0b5aad3633008b754 |
| institution | Directory Open Access Journal |
| issn | 1660-3397 |
| language | English |
| last_indexed | 2024-04-13T00:26:26Z |
| publishDate | 2019-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Marine Drugs |
| spelling | doaj.art-2569e699f55244c0b5aad3633008b7542022-12-22T03:10:35ZengMDPI AGMarine Drugs1660-33972019-02-011729010.3390/md17020090md17020090Effect of Oven-Drying on the Recovery of Valuable Compounds from <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i>Andreia F.R. Silva0Helena Abreu1Artur M.S. Silva2Susana M. Cardoso3QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, PortugalALGAplus, Produção e Comercialização de Algas e seus Derivados, Lda., 3830-196 Ílhavo, PortugalQOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, PortugalQOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, PortugalThe effect of oven-drying at 25, 40 and 60 °C was evaluated on three macroalgae of relevance in Europe, namely <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i>, with respect to quality aspects, including their potential to be exploited as a source of valuable compounds. Notably, as compared to freeze-drying, oven-drying at 25 °C promoted the extraction of chlorophylls and carotenoids from <i>U. rigida</i>, as well as those of phycoerythrin and chlorophyll <i>a</i> from <i>Gracilaria</i> sp., while 40 °C favored the recovery of fucoxanthin and pheophytin <i>a</i> from <i>F. vesiculosus</i>. On the other hand, the use of oven-drying had a negative impact on the extraction of phenolic compounds from this alga, also diminishing the antioxidant activity of the resulting extracts. Instead, the impact of oven-drying of raw material on the recovery of specific polysaccharides differed among the macroalgae. While the amounts of ulvans and fucoidans obtained from macroalgae dried at higher temperatures tended to be superior, the recovery of agar was not affected with the drying temperatures applied to <i>Gracilaria</i> sp. The overall results showed that oven-drying might serve as a good alternative to stabilize <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i>, especially if extraction of pigments and polysaccharides is aimed, thought the appropriate temperature applied must be adapted for each macroalgae.https://www.mdpi.com/1660-3397/17/2/90algaedryingpigmentsphenolic compoundsantioxidant activitypolysaccharides |
| spellingShingle | Andreia F.R. Silva Helena Abreu Artur M.S. Silva Susana M. Cardoso Effect of Oven-Drying on the Recovery of Valuable Compounds from <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i> Marine Drugs algae drying pigments phenolic compounds antioxidant activity polysaccharides |
| title | Effect of Oven-Drying on the Recovery of Valuable Compounds from <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i> |
| title_full | Effect of Oven-Drying on the Recovery of Valuable Compounds from <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i> |
| title_fullStr | Effect of Oven-Drying on the Recovery of Valuable Compounds from <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i> |
| title_full_unstemmed | Effect of Oven-Drying on the Recovery of Valuable Compounds from <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i> |
| title_short | Effect of Oven-Drying on the Recovery of Valuable Compounds from <i>Ulva rigida</i>, <i>Gracilaria</i> sp. and <i>Fucus vesiculosus</i> |
| title_sort | effect of oven drying on the recovery of valuable compounds from i ulva rigida i i gracilaria i sp and i fucus vesiculosus i |
| topic | algae drying pigments phenolic compounds antioxidant activity polysaccharides |
| url | https://www.mdpi.com/1660-3397/17/2/90 |
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