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Effect of nitrate and irradiance on fatty acid production in microalgae cultivated for feeding larvae and broodstock conditioning in batch culture

dc.contributoren-US
dc.contributores-ES
dc.creatorGonzález, Fidelina
dc.creatorSáez, Katia
dc.creatorVega, María Eliana
dc.creatorBizama, Berenice
dc.creatorBecerra, José
dc.creatorLépez, Irene
dc.creatorHernández, Víctor
dc.creatorSilva, Mario
dc.date2019-05-10
dc.identifierhttps://revistas.uv.cl/index.php/rbmo/article/view/1569
dc.identifier10.22370/rbmo.2019.54.1.1569
dc.descriptionThe aim of this study was to compare conditions for the production of high levels of PUFA, EPA and DHA in cultured microalgae for larval bivalve feeding stages. It assessed fatty acid composition by gas chromatography for Isochrysis galbana Parke (T-Iso) and 2 species of Chaetoceros, C. gracilis Pantocsek and C. constrictus Gran. Species were studied in batch cultures, at the beginning of stationary growth phase with different irradiance and 2 levels of nitrogen content for Chaetoceros sp., and constant irradiance with 5 concentrations of sodium nitrate for I. galbana in an F/2 medium. Isochrysis galbana produced higher levels of linolenic acid and docosahexaenoic acid than eicosapentaenoic acid (EPA) at low N-nitrate concentrations; however, fatty acids increased notably with surplus N-nitrate, above F/2 medium content. Low irradiance and normal concentration of nitrates in the batches of Chaetoceros gracilis species produced a greater EPA content. C. constrictus, a diatom isolated from phytoplankton samples, presented higher levels of EPA and DHA at low levels of nitrogen and low irradiance.en-US
dc.descriptiones-ES
dc.formatapplication/pdf
dc.languageeng
dc.publisherUniversidad de Valparaísoes-ES
dc.relationhttps://revistas.uv.cl/index.php/rbmo/article/view/1569/1707
dc.rightsCopyright (c) 2019 Los autores que publican en la Revista de Biología Marina y Oceanografía transfieren automáticamente sus derechos de publicación a la Universidad de Valparaíso, asegurando todos los derechos de propiedad intelectual y difundir ampliamente el artículo y la revista en cualquier formato. Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons.(licencia de Atribución NoComercial 3.0 Unported). La Revista de Biología Marina y Oceanografía autoriza el uso de figuras, tablas y extractos breves de su colección de manuscritos, en trabajos científicos y educacionales, siempre que se incluya la fuente de información.es-ES
dc.rightshttp://creativecommons.org/licenses/by/4.0es-ES
dc.sourceRevista de Biología Marina y Oceanografía; Vol. 54, Núm. 1 (2019); 91-106es-ES
dc.source0718-1957
dc.source0717-3326
dc.subjectMicroalgae; Fatty acids; Eicosapentaenoic aciden-US
dc.subjectes-ES
dc.titleEffect of nitrate and irradiance on fatty acid production in microalgae cultivated for feeding larvae and broodstock conditioning in batch cultureen-US
dc.titlees-ES
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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