Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/29655
Título: | Impact of cultivation of Mastocarpus stellatus in IMTA on the seaweeds chemistry and hybrid carrageenan properties |
Autor(es): | Azevedo, Gabriela Domingues, Bernardo Abreu, Helena Pinto, Isabel Sousa Feio, Gabriel Hilliou, L. |
Palavras-chave: | IMT Mastocarpus stellatus Productivity Hybrid carrageenan Hydrogel Carrageenan Seaweed Aquaculture Biology Chemistry Viscosity IMTA |
Data: | 2015 |
Editora: | Elsevier |
Revista: | Carbohydrate polymers |
Resumo(s): | The biomass yield potential of Mastocarpus stellatus, a commercially attractive carrageenophyte for foods and pharmaceutics, was investigated by cultivating the seaweeds in the nutrient-rich outflow of a commercial fish farm. Results from two consecutive 4 weeks experiments indicate that the cultivation of this seaweed produces a mean biomass of 21 to 40.6 g DW m−2 day−1 depending on the time of the experiment. DRIFT and CP–MAS NMR analyses of seaweeds indicate that cultivation during May affected quantitatively the seaweeds chemistry, and thus the chemical and gelling properties of native extracts of kappa/iota-hybrid carrageenan (KI). Overall, algal growth leads to the production of more sulphated KI, the percentage increase varying between 27% and 44% for the two experiments. However, alkali treatment of seaweeds before extraction reduces the variations in gelling properties of KI induced by the algal growth. This study demonstrates the capacity of growing M. stellatus in an integrated multi-trophic aquaculture system for the sustainable production of high value polysaccharides. |
Tipo: | Artigo |
Descrição: | Prova tipográfica. "Available online 26 April 2014" |
URI: | https://hdl.handle.net/1822/29655 |
DOI: | 10.1016/j.carbpol.2014.04.069 |
ISSN: | 0144-8617 |
Versão da editora: | http://www.sciencedirect.com/science/article/pii/S0144861714004263 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
carb pol 2014 imta.pdf Acesso restrito! | author copy | 1,5 MB | Adobe PDF | Ver/Abrir |