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https://hdl.handle.net/1822/87273
Título: | Optimization of Pavlova gyrans biomass production and the fatty acid profile using a two-step approach |
Autor(es): | Maciel, José Filipe Gonçalves Couto, Daniela Geada, Pedro Miguel Macedo Pereira, Hugo Teixeira, J. A. Domingues, M. Rosário Silva, Joana Vicente, A. A. |
Data: | 25-Set-2023 |
Editora: | Royal Society of Chemistry |
Revista: | Sustainable Food Technology |
Citação: | Filipe Maciel; Couto, Daniela; Geada, Pedro; Pereira, Hugo; Teixeira, José A.; Domingues, M. Rosário; Silva, Joana; Vicente, António A., Optimization of Pavlova gyrans biomass production and the fatty acid profile using a two-step approach. Sustainable Food Technology, 1(6), 850-862, 2023 |
Resumo(s): | This work aimed to optimize and characterize the biomass production of Pavlova gyrans through a sequential multivariate approach. Among seventeen cultivation parameters, light intensity, NaNO3, and CuSO4·5H2O were identified as the most significative factors (p < 0.10) for biomass productivity. Together with NaH2PO4·H2O, these variables were further studied in order to maximize the biomass production of P. gyrans, with the optimum growth conditions identified as 700 μmolphotons m−2 s−1 light intensity, 1500 mg L−1 NaNO3, 6 μg L−1 CuSO4·5H2O and 40 mg L−1 NaH2PO4·H2O. These conditions allowed a 3.8-fold increase in biomass production (2.26 g AFDW per L) and improved the biochemical profile (p < 0.05) when compared with the control (Walne's medium). Namely, it was increased the contents of protein (from 10.59 to 30.76% DW), PUFAs (from 37.13 to 47.11% TFA), n − 3 FAs (26.49 to 38.27% TFA), and DHA (from 5.73 to 10.33% TFA). The nutritional value of the microalga (p < 0.05) was also improved, decreasing its atherogenic (AI – from 1.34 to 0.93) and thrombogenic (TI – from 0.45 to 0.24) indices, while the hypocholesterolemic index (HI) increased from 0.96 to 1.63. This work highlights the importance of different growth conditions in P. gyrans, playing a relevant role in the large-scale implementation of this microalga with beneficial nutritional composition for human consumption. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/87273 |
DOI: | 10.1039/D3FB00110E |
e-ISSN: | 2753-8095 |
Versão da editora: | https://pubs.rsc.org/en/journals/journalissues/fb |
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_56428_1.pdf | 580,04 kB | Adobe PDF | Ver/Abrir |