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...
| Main Authors: | , , , |
|---|---|
| Format: | Online |
| Language: | spa |
| Published: |
Universidad Pedagógica y Tecnológica de Colombia
2015
|
| Subjects: | |
| Online Access: | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3550 |
| _version_ | 1801706069953609728 |
|---|---|
| author | Tejeda-Benítez, Lesly Henao-Argumedo, Daniela Alvear-Alayón, Mario Castillo-Saldarriaga, Carlos Rafael |
| author_facet | Tejeda-Benítez, Lesly Henao-Argumedo, Daniela Alvear-Alayón, Mario Castillo-Saldarriaga, Carlos Rafael |
| author_sort | Tejeda-Benítez, Lesly |
| collection | OJS |
| 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. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-3550 |
| institution | Revista Facultad de Ingeniería |
| language | spa |
| publishDate | 2015 |
| publisher | Universidad Pedagógica y Tecnológica de Colombia |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-35502018-11-21T00:50:03Z Characterization and lipid profile of oil from microalgae Caracterización y perfil lipídico de aceites de microalgas Tejeda-Benítez, Lesly Henao-Argumedo, Daniela Alvear-Alayón, Mario Castillo-Saldarriaga, Carlos Rafael fatty acids biodiésel lipids microalgae Ácidos grasos Biodiésel Lípidos Microalgas. 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. 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 &, 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. Universidad Pedagógica y Tecnológica de Colombia 2015-05-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion investigation application/pdf text/html https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3550 10.19053/01211129.3550 Revista Facultad de Ingeniería; Vol. 24 No. 39 (2015); 43-54 Revista Facultad de Ingeniería; Vol. 24 Núm. 39 (2015); 43-54 2357-5328 0121-1129 spa https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3550/3173 https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3550/4325 |
| spellingShingle | fatty acids biodiésel lipids microalgae Ácidos grasos Biodiésel Lípidos Microalgas. Tejeda-Benítez, Lesly Henao-Argumedo, Daniela Alvear-Alayón, Mario Castillo-Saldarriaga, Carlos Rafael Characterization and lipid profile of oil from microalgae |
| title | Characterization and lipid profile of oil from microalgae |
| title_alt | Caracterización y perfil lipídico de aceites de microalgas |
| 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_short | Characterization and lipid profile of oil from microalgae |
| title_sort | characterization and lipid profile of oil from microalgae |
| topic | fatty acids biodiésel lipids microalgae Ácidos grasos Biodiésel Lípidos Microalgas. |
| topic_facet | fatty acids biodiésel lipids microalgae Ácidos grasos Biodiésel Lípidos Microalgas. |
| url | https://revistas.uptc.edu.co/index.php/ingenieria/article/view/3550 |
| work_keys_str_mv | AT tejedabenitezlesly characterizationandlipidprofileofoilfrommicroalgae AT henaoargumedodaniela characterizationandlipidprofileofoilfrommicroalgae AT alvearalayonmario characterizationandlipidprofileofoilfrommicroalgae AT castillosaldarriagacarlosrafael characterizationandlipidprofileofoilfrommicroalgae AT tejedabenitezlesly caracterizacionyperfillipidicodeaceitesdemicroalgas AT henaoargumedodaniela caracterizacionyperfillipidicodeaceitesdemicroalgas AT alvearalayonmario caracterizacionyperfillipidicodeaceitesdemicroalgas AT castillosaldarriagacarlosrafael caracterizacionyperfillipidicodeaceitesdemicroalgas |
