Characterization and lipid profile of oil from microalgae

The increasing use of biodiesel has prompted the search for new raw materials, among them are highlighted the microalgae. In this research the cultivation of microalgae Chlorella sp. and Dunaliella salina at different conditions of pH and nitrogen is reported, and the oils obtained from them charact...

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Fecha de publicación:: 2015

Institución:: Universidad Pedagógica y Tecnológica de Colombia

Repositorio:: RiUPTC: Repositorio Institucional UPTC

Idioma:: spa

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network_name_str	RiUPTC: Repositorio Institucional UPTC
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spelling	2015-05-052024-07-05T19:11:19Z2024-07-05T19:11:19Zhttps://revistas.uptc.edu.co/index.php/ingenieria/article/view/355010.19053/01211129.3550https://repositorio.uptc.edu.co/handle/001/14115The increasing use of biodiesel has prompted the search for new raw materials, among them are highlighted the microalgae. In this research the cultivation of microalgae Chlorella sp. and Dunaliella salina at different conditions of pH and nitrogen is reported, and the oils obtained from them characterization, in order to assess the biodiesel potential production. D. salina reached the maximun cells concentration, during a 6 days cultivation, at pH 8.5 and 0.1 mg L-1 of nitrogen, obtaining values of 1.15x106 cells mL-1, while the Chlorella sp. under a pH value of 7.5 and 0.1 mg L-1 of nitrogen conditions, achieved the maximun concentrations of 2.6x107 cells mL-1. Analysis of the fatty acid profiles revealed that the most abundant were linolenic, and then, oleic, this implies a large number of unsaturations that would have negative implications on the physicochemical properties and performance of biodiesel combustion.El uso creciente del biodiésel ha impulsado la búsqueda de nuevas materias primas, dentro de las que se destacan las microalgas. En esta investigación se estudió el cultivo de las microalgas Chlorella sp. y Dunaliella salina bajo diferentes condiciones de pH y concentración de nitrógeno (mgL-1), y la caracterización de los aceites obtenidos, con el fin de evaluar su potencial uso como materia prima en la producción de biodiésel. La D. salina alcanzó una máxima concentración celular de 1.15x106 células mL-1 en 6 días de cultivo en unas condiciones de 8.5 pH y 0.1 mg L-1 concentración de nitrógeno, mientras que Chlorella sp. presentó una máxima concentración celular de 2.6x107 células mL-1 en 14 días de cultivo en unas condiciones de 7.5 pH y 0.1 mg L-1 concentración de nitrógeno. La extracción de aceite intracelular de las microalgas cultivadas bajo las mejores condiciones de crecimiento celular se realizó empleando el método modificado de Bligh &amp, Dyer. Al determinar el perfil de ácidos grasos de los aceites extraídos de ambas microalgas, se encontraron en mayor proporción dos ácidos grasos insaturados: ácido linolénico y ácido oleico. En el aceite de D. salina se encontró una concentración de 51% p/p de ácido linolénico, mientras que para el aceite de Chlorella sp. fue de 39% p/p. Con relación al ácido oleico, el aceite de Chrorella sp. presentó una concentración de 35% p/p, superior al aceite de D. salina, con 25% p/p.application/pdftext/htmlspaspaUniversidad Pedagógica y Tecnológica de Colombiahttps://revistas.uptc.edu.co/index.php/ingenieria/article/view/3550/3173https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3550/4325Revista Facultad de Ingeniería; Vol. 24 No. 39 (2015); 43-54Revista Facultad de Ingeniería; Vol. 24 Núm. 39 (2015); 43-542357-53280121-1129fatty acidsbiodiésellipidsmicroalgaeÁcidos grasosBiodiéselLípidosMicroalgas.Characterization and lipid profile of oil from microalgaeCaracterización y perfil lipídico de aceites de microalgasinvestigationinfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/publishedVersionhttp://purl.org/coar/version/c_970fb48d4fbd8a97http://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/access_right/c_abf14http://purl.org/coar/access_right/c_abf2Tejeda-Benítez, LeslyHenao-Argumedo, DanielaAlvear-Alayón, MarioCastillo-Saldarriaga, Carlos Rafael001/14115oai:repositorio.uptc.edu.co:001/141152025-07-18 11:53:14.301metadata.onlyhttps://repositorio.uptc.edu.coRepositorio Institucional UPTCrepositorio.uptc@uptc.edu.co
dc.title.en-US.fl_str_mv	Characterization and lipid profile of oil from microalgae
dc.title.es-ES.fl_str_mv	Caracterización y perfil lipídico de aceites de microalgas
title	Characterization and lipid profile of oil from microalgae
spellingShingle	Characterization and lipid profile of oil from microalgae fatty acids biodiésel lipids microalgae Ácidos grasos Biodiésel Lípidos Microalgas.
title_short	Characterization and lipid profile of oil from microalgae
title_full	Characterization and lipid profile of oil from microalgae
title_fullStr	Characterization and lipid profile of oil from microalgae
title_full_unstemmed	Characterization and lipid profile of oil from microalgae
title_sort	Characterization and lipid profile of oil from microalgae
dc.subject.en-US.fl_str_mv	fatty acids biodiésel lipids microalgae
topic	fatty acids biodiésel lipids microalgae Ácidos grasos Biodiésel Lípidos Microalgas.
dc.subject.es-ES.fl_str_mv	Ácidos grasos Biodiésel Lípidos Microalgas.
description	The increasing use of biodiesel has prompted the search for new raw materials, among them are highlighted the microalgae. In this research the cultivation of microalgae Chlorella sp. and Dunaliella salina at different conditions of pH and nitrogen is reported, and the oils obtained from them characterization, in order to assess the biodiesel potential production. D. salina reached the maximun cells concentration, during a 6 days cultivation, at pH 8.5 and 0.1 mg L-1 of nitrogen, obtaining values of 1.15x106 cells mL-1, while the Chlorella sp. under a pH value of 7.5 and 0.1 mg L-1 of nitrogen conditions, achieved the maximun concentrations of 2.6x107 cells mL-1. Analysis of the fatty acid profiles revealed that the most abundant were linolenic, and then, oleic, this implies a large number of unsaturations that would have negative implications on the physicochemical properties and performance of biodiesel combustion.
publishDate	2015
dc.date.accessioned.none.fl_str_mv	2024-07-05T19:11:19Z
dc.date.available.none.fl_str_mv	2024-07-05T19:11:19Z
dc.date.none.fl_str_mv	2015-05-05
dc.type.en-US.fl_str_mv	investigation
dc.type.none.fl_str_mv	info:eu-repo/semantics/article
dc.type.coar.fl_str_mv	http://purl.org/coar/resource_type/c_2df8fbb1
dc.type.coarversion.fl_str_mv	http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.version.spa.fl_str_mv	info:eu-repo/semantics/publishedVersion
dc.type.coarversion.spa.fl_str_mv	http://purl.org/coar/version/c_970fb48d4fbd8a97
status_str	publishedVersion
dc.identifier.none.fl_str_mv	https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3550 10.19053/01211129.3550
dc.identifier.uri.none.fl_str_mv	https://repositorio.uptc.edu.co/handle/001/14115
url	https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3550 https://repositorio.uptc.edu.co/handle/001/14115
identifier_str_mv	10.19053/01211129.3550
dc.language.none.fl_str_mv	spa
dc.language.iso.spa.fl_str_mv	spa
language	spa
dc.relation.none.fl_str_mv	https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3550/3173 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3550/4325
dc.rights.coar.fl_str_mv	http://purl.org/coar/access_right/c_abf2
dc.rights.coar.spa.fl_str_mv	http://purl.org/coar/access_right/c_abf14
rights_invalid_str_mv	http://purl.org/coar/access_right/c_abf14 http://purl.org/coar/access_right/c_abf2
dc.format.none.fl_str_mv	application/pdf text/html
dc.publisher.en-US.fl_str_mv	Universidad Pedagógica y Tecnológica de Colombia
dc.source.en-US.fl_str_mv	Revista Facultad de Ingeniería; Vol. 24 No. 39 (2015); 43-54
dc.source.es-ES.fl_str_mv	Revista Facultad de Ingeniería; Vol. 24 Núm. 39 (2015); 43-54
dc.source.none.fl_str_mv	2357-5328 0121-1129
institution	Universidad Pedagógica y Tecnológica de Colombia
repository.name.fl_str_mv	Repositorio Institucional UPTC
repository.mail.fl_str_mv	repositorio.uptc@uptc.edu.co
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Characterization and lipid profile of oil from microalgae

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