Cultivo en efluentes urbanos del alga Scenedesmus quadricauda (Sphaeropleales: Scenedesmaceae) y su potencial para biodiesel: perfil de ésteres metílicos de ácidos grasos
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| Natura: | Artículo científico |
| Lingua: | es |
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Universidad Estatal a Distancia
2015
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| _version_ | 1876459528234467328 |
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| author | Ruth Salomón |
| author_facet | Ruth Salomón |
| contents | Cultivo en efluentes urbanos del alga Scenedesmus quadricauda (Sphaeropleales: Scenedesmaceae) y su potencial para biodiesel: perfil de ésteres metílicos de ácidos grasos Ruth Salomón Marcela Cravero Enrique Rost Marisa Carstens Ariel Parra Isabel Albarracín Multidisciplinaria (Ciencias Naturales y Exactas) luents urban ef Biodiesel microalgae Scenedesmus quadricauda Microalgae stand as biodiesel feedstock for high produc- tivity and good quality of lipids. This paper presents the fatty acid methyl ester profle of Scenedesmus quadricauda . The culture was grown in Trelew city sewage, Patagonia, Argentina, in 20L at 23±1ºC, 12:12 photoperiod, fluorescent lighting tubes at 33μE m -2 s -1 and agita- tion by air bubbling. Percentage of fatty acid methyl esters was 7,89%, it was determined by Lepage method. The profle was obtained by gas chromatography. Methyl linolenate (C18: 3) and polyunsaturated (³4 double bonds) ester fractions were 15,06% and 0,83% respectively. The unsaturation index (0,84) was estimated and some biodiesel param- eters were calculated through it: kinematic viscosity (4,68mm s -2 ), io- dine value (75,15), cetane number (57,28), cloud point (8,78°C), specific gravity (0,88) and higher heating value (40,01MJ/kg). Linolenic acid es- ter fraction is above the limit value of EN 14214:2003 (<12%). However, one can modify unsaturation in this strain by varying the temperature. It is also possible to increase the lipid proportion by maintaining the culture at low nitrogen concentration by venting NH 3 to increase pH during photosynthesis. 2015 artículo científico 1659-4266 https://www.redalyc.org/articulo.oa?id=515651796008 es http://www.redalyc.org/revista.oa?id=5156 UNED Research Journal / Cuadernos de Investigación UNED application/pdf Universidad Estatal a Distancia UNED Research Journal / Cuadernos de Investigación UNED (Costa Rica) Num.2 Vol.6 |
| format | Artículo científico |
| id | redalyc_515651796008 |
| institution | Redalyc |
| language | es |
| publishDate | 2015 |
| publisher | Universidad Estatal a Distancia |
| spellingShingle | Cultivo en efluentes urbanos del alga Scenedesmus quadricauda (Sphaeropleales: Scenedesmaceae) y su potencial para biodiesel: perfil de ésteres metílicos de ácidos grasos Ruth Salomón Multidisciplinaria (Ciencias Naturales y Exactas) luents urban ef Biodiesel microalgae Scenedesmus quadricauda Cultivo en efluentes urbanos del alga Scenedesmus quadricauda (Sphaeropleales: Scenedesmaceae) y su potencial para biodiesel: perfil de ésteres metílicos de ácidos grasos Ruth Salomón Marcela Cravero Enrique Rost Marisa Carstens Ariel Parra Isabel Albarracín Multidisciplinaria (Ciencias Naturales y Exactas) luents urban ef Biodiesel microalgae Scenedesmus quadricauda Microalgae stand as biodiesel feedstock for high produc- tivity and good quality of lipids. This paper presents the fatty acid methyl ester profle of Scenedesmus quadricauda . The culture was grown in Trelew city sewage, Patagonia, Argentina, in 20L at 23±1ºC, 12:12 photoperiod, fluorescent lighting tubes at 33μE m -2 s -1 and agita- tion by air bubbling. Percentage of fatty acid methyl esters was 7,89%, it was determined by Lepage method. The profle was obtained by gas chromatography. Methyl linolenate (C18: 3) and polyunsaturated (³4 double bonds) ester fractions were 15,06% and 0,83% respectively. The unsaturation index (0,84) was estimated and some biodiesel param- eters were calculated through it: kinematic viscosity (4,68mm s -2 ), io- dine value (75,15), cetane number (57,28), cloud point (8,78°C), specific gravity (0,88) and higher heating value (40,01MJ/kg). Linolenic acid es- ter fraction is above the limit value of EN 14214:2003 (<12%). However, one can modify unsaturation in this strain by varying the temperature. It is also possible to increase the lipid proportion by maintaining the culture at low nitrogen concentration by venting NH 3 to increase pH during photosynthesis. 2015 artículo científico 1659-4266 https://www.redalyc.org/articulo.oa?id=515651796008 es http://www.redalyc.org/revista.oa?id=5156 UNED Research Journal / Cuadernos de Investigación UNED application/pdf Universidad Estatal a Distancia UNED Research Journal / Cuadernos de Investigación UNED (Costa Rica) Num.2 Vol.6 |
| title | Cultivo en efluentes urbanos del alga Scenedesmus quadricauda (Sphaeropleales: Scenedesmaceae) y su potencial para biodiesel: perfil de ésteres metílicos de ácidos grasos |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) luents urban ef Biodiesel microalgae Scenedesmus quadricauda |
| url | https://www.redalyc.org/articulo.oa?id=515651796008 |