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https://hdl.handle.net/1822/65377
Título: | Influence of thermal and electrical effects of ohmic heating on C-phycocyanin properties and biocompounds recovery from Spirulina platensis |
Autor(es): | Santos, Pedro Miguel Ferreira Nunes, R. De Biasio, Filomena Spigno, Giorgia Gorgoglione, Domenico Teixeira, J. A. Rocha, Cristina M. R. |
Palavras-chave: | Arthrospira platensis Moderate electric fields C-phycocyanin Biocompounds extraction Cell disruption |
Data: | Jun-2020 |
Editora: | Elsevier 1 |
Revista: | LWT - Food Science and Technology |
Citação: | Ferreira-Santos, P.; Nunes, R.; De Biasio, Filomena; Spigno, Giorgia; Gorgoglione, Domenico; Teixeira, José A.; Rocha, Cristina M. R., Influence of thermal and electrical effects of ohmic heating on C-phycocyanin properties and biocompounds recovery from Spirulina platensis. LWT-Food Science and Technology, 128(109491), 2020 |
Resumo(s): | Spirulina platensis is interesting for the food industry due to its overall composition and high content in C-phycocyanin. However, the sensitivity of C-phycocyanin makes its extraction a delicate process. The present study focuses on assessing the use of ohmic heating (OH) in the recovery of C-phycocyanin and other relevant compounds as an alternative method to freeze-thawing or conventional heating. Different ohmic and conventional heating treatments were applied both to purified C-phycocyanin and Spirulina powder. Evaluation of fluorescence and circular dichroism showed that moderated electric fields increased C-phycocyanin stability. This was confirmed in the extraction trials which revealed that OH assisted extraction at higher temperatures (44°C), and shorter times (30min) allowed significant higher extraction yield of C-phycocyanin (45 mg/gdw Spirulina), in comparison with conventional heating and freeze-thawing. OH allowed also up to 80% higher yields in phenolic compounds and carbohydrates. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/65377 |
DOI: | 10.1016/j.lwt.2020.109491 |
ISSN: | 0023-6438 |
Versão da editora: | https://www.journals.elsevier.com/lwt |
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_53662_1.pdf | 2,53 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons