Data/hora: 10/06/2024 16:19:00

Provedor de dados: | 124
País: | Brazil
Título: | Metabolites of interest for food technology produced by microalgae from the Northeast Brazil
Autores: | Sassi,Katharina Kardinele Barros; Silva,João Andrade da; Calixto,Clediana Dantas; Sassi,Roberto; Sassi,Cristiane Francisca da Costa.
Data: | 2019-03-01
Ano: | 2019
Palavras-chave: | Polyunsaturated fatty acids; Carotenoids; Omegas; Microalgae cultivation.
Resumo: | ABSTRACT There is an increasing demand for bioprospection focusing on microalgae isolated from the northeastern region of Brazil with potential importance for food industries. To attend that need, we evaluated the characteristics of 12 regional species of microalgae grown under controlled cultivation conditions (temperature = 24 ± 1 ºC, illumination 150 µmol photons m-2 s-1, photoperiod of 12 h) in terms of their nutritional quality and lipid profiles. Significant differences in growth characteristics and chemical compositions were observed among the species investigated. High carbohydrate contents (&gt; 25 g 100 g-1) were recorded in various strains of Chlorococcum and the marine microalga Amphidinium carterae; high protein contents (&gt; 35 g 100 g-1) were observed in Scenedesmus acuminatus and Pediastrum tetras; and high lipid contents (&gt; 25 g 100 g-1) in A. carterae and some strains of Chlorococcum sp. (cf. hypnosporum). Chlamydomonas sp. demonstrated the greatest production of carotenoids (64.92 mg g-1), chlorophyll-a (234.74 mg g-1), and chlorophyll-b (59.34 mg g-1). The lipid profiles of Chlorella cf. minutissima, four strains of Chlorococcum sp. (cf. hypnosporum), P. tetras, Planktothrix isothrix, and S. acuminatus indicated the presence of palmitic, oleic (ω-9), linoleic (ω-6) and α-linolenic (ω-3) acids, with more than 50% omegas in the total composition of their fatty acids. In terms of chemical nutrients, the microalgae cited were found to be potential sources of omegas, carotenoids, and chlorophylls that could be used in food industries.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000100054
Editor: | Universidade Federal do Ceará
Relação: | 10.5935/1806-6690.20190007
Formato: | text/html
Fonte: | Revista Ciência Agronômica  v.50 n.1 2019
Fonte: | info:eu-repo/semantics/openAccess