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https://hdl.handle.net/1822/56909
Título: | Characterization of agar from Gracilaria tikvahiae cultivated for nutrient bioextraction in open water farms |
Autor(es): | Rocha, Cristina M. R. Sousa, Ana M. M. Kim, Jang K. Magalhães, Júlia M. C. S. Yarish, Charles Gonçalves, Maria do Pilar |
Palavras-chave: | Agar Extraction Yield Gel strength Nutrient bioextraction Gracilaria tikvahiae |
Data: | Abr-2019 |
Editora: | Elsevier 1 |
Revista: | Food Hydrocolloids |
Citação: | Rocha, Cristina M. R.; Sousa, Ana M. M.; Kim, Jang K.; Magalhães, Júlia M. C. S.; Yarish, Charles; Gonçalves, Maria do Pilar, Characterization of agar from Gracilaria tikvahiae cultivated for nutrient bioextraction in open water farms. Food Hydrocolloids, 89, 260-271, 2019 |
Resumo(s): | Gracilaria tikvahiae, an endemic western North Atlantic red alga, was cultivated for nutrient bioextraction in urbanized estuarine waters in Long Island Sound and the Bronx River Estuary, USA. This study assesses the feasibility of an integrated approach of using G. tikvahiae produced in this bioextraction system as sustainable biomass source for agar production. Agars were extracted after alkaline pre-treatment and characterized in terms of gelling strength, chemical composition, chemical structure and gel structure. Results indicated that this seaweed performed similar to other cultivated Gracilaria in terms of extraction yield and gelling strength of the agar. Differences between sites were not significant in terms of agar gel strength, though yield was higher at Long Island Sound. The extracted agars were sulfated, methylated and with no detectable pyruvate substituents. It is possible to use an integrated strategy of nutrient bioextraction in urbanized estuarine waters and agar exploitation with G. tikvahiae. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/56909 |
DOI: | 10.1016/j.foodhyd.2018.10.048 |
ISSN: | 0268-005X |
e-ISSN: | 0268-005X |
Versão da editora: | http://www.elsevier.com/locate/issn/0268005X |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_49071_1.pdf | 2,63 MB | Adobe PDF | Ver/Abrir |