Preliminary evaluation of the green microalga Dunaliella salina as a potential feedstock for biodiesel: effect of molasses on growth and lipid profile

ABSTRACT This research aims to evaluate the effect of molasses as a source of organic carbon on the growth and lipid profile of Dunaliella salina cultivated under different light regimes to determine its strategy and potential use to produce biodiesel. Two sources of nutrients (F/2 medium, F/2; mola...

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Autores principales:	Gastelum-Franco,Jain J., Esparza-Leal,Héctor M., García-Ulloa,Manuel, López-Álvarez,Ely S., Muy-Rangel,María D., Pérez-Rubio,Verónica, Ulloa-Mercado,Ruth G., Montiel-Montoya,Jorge
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2021
Materias:	Dunaliella salina molasses feedstock fatty acids profile biofuel, biomass production
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000500763
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spelling	oai:scielo:S0718-560X20210005007632021-11-25Preliminary evaluation of the green microalga Dunaliella salina as a potential feedstock for biodiesel: effect of molasses on growth and lipid profileGastelum-Franco,Jain J.Esparza-Leal,Héctor M.García-Ulloa,ManuelLópez-Álvarez,Ely S.Muy-Rangel,María D.Pérez-Rubio,VerónicaUlloa-Mercado,Ruth G.Montiel-Montoya,Jorge Dunaliella salina molasses feedstock fatty acids profile biofuel, biomass production ABSTRACT This research aims to evaluate the effect of molasses as a source of organic carbon on the growth and lipid profile of Dunaliella salina cultivated under different light regimes to determine its strategy and potential use to produce biodiesel. Two sources of nutrients (F/2 medium, F/2; molasses, M) and two light conditions (12 h light: 12 h darkness, 12L:12D) conformed four treatments (F/2 12L:12D, F/2 D, M 12L:12D, and MD) that were investigated with three replicates each. The concentration of microalgae produced by the groups under light conditions was more than double that of those grown in darkness. The highest biomass produced (46.91 ± 6.47 g L-1) was obtained in the F/2 medium with 12L:12D treatment, while the lowest (18.99 ± 0.78 g L-1) was in the M 12L:12D group. Regardless of the culture conditions, the lipids were mainly composed of the C16:0 and C18 fatty acids. The use of molasses as a culture medium produced the highest amount of C18:1, regardless of the light regime. Molasses promoted the highest production of fatty acids methyl esters. Depending on the culture medium, D. salina cells showed different percentages of saturated (SFA), monounsaturated (MFA), and polyunsaturated (PUFA) fatty acids. The highest amount of saturated fatty acids was obtained in F/2 12L:12D. The highest amount of polyunsaturated fatty acids was presented in the mixotrophic culture (molasses and light). The cultures grown with molasses were rich in monounsaturated fatty acids. An inexpensive industrial by-product, Cane molasses could be a low-cost feedstock for biodiesel in cultivating D. salina.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.49 n.5 20212021-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000500763en10.3856/vol49-issue5-fulltext-2755
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Dunaliella salina molasses feedstock fatty acids profile biofuel, biomass production
spellingShingle	Dunaliella salina molasses feedstock fatty acids profile biofuel, biomass production Gastelum-Franco,Jain J. Esparza-Leal,Héctor M. García-Ulloa,Manuel López-Álvarez,Ely S. Muy-Rangel,María D. Pérez-Rubio,Verónica Ulloa-Mercado,Ruth G. Montiel-Montoya,Jorge Preliminary evaluation of the green microalga Dunaliella salina as a potential feedstock for biodiesel: effect of molasses on growth and lipid profile
description	ABSTRACT This research aims to evaluate the effect of molasses as a source of organic carbon on the growth and lipid profile of Dunaliella salina cultivated under different light regimes to determine its strategy and potential use to produce biodiesel. Two sources of nutrients (F/2 medium, F/2; molasses, M) and two light conditions (12 h light: 12 h darkness, 12L:12D) conformed four treatments (F/2 12L:12D, F/2 D, M 12L:12D, and MD) that were investigated with three replicates each. The concentration of microalgae produced by the groups under light conditions was more than double that of those grown in darkness. The highest biomass produced (46.91 ± 6.47 g L-1) was obtained in the F/2 medium with 12L:12D treatment, while the lowest (18.99 ± 0.78 g L-1) was in the M 12L:12D group. Regardless of the culture conditions, the lipids were mainly composed of the C16:0 and C18 fatty acids. The use of molasses as a culture medium produced the highest amount of C18:1, regardless of the light regime. Molasses promoted the highest production of fatty acids methyl esters. Depending on the culture medium, D. salina cells showed different percentages of saturated (SFA), monounsaturated (MFA), and polyunsaturated (PUFA) fatty acids. The highest amount of saturated fatty acids was obtained in F/2 12L:12D. The highest amount of polyunsaturated fatty acids was presented in the mixotrophic culture (molasses and light). The cultures grown with molasses were rich in monounsaturated fatty acids. An inexpensive industrial by-product, Cane molasses could be a low-cost feedstock for biodiesel in cultivating D. salina.
author	Gastelum-Franco,Jain J. Esparza-Leal,Héctor M. García-Ulloa,Manuel López-Álvarez,Ely S. Muy-Rangel,María D. Pérez-Rubio,Verónica Ulloa-Mercado,Ruth G. Montiel-Montoya,Jorge
author_facet	Gastelum-Franco,Jain J. Esparza-Leal,Héctor M. García-Ulloa,Manuel López-Álvarez,Ely S. Muy-Rangel,María D. Pérez-Rubio,Verónica Ulloa-Mercado,Ruth G. Montiel-Montoya,Jorge
author_sort	Gastelum-Franco,Jain J.
title	Preliminary evaluation of the green microalga Dunaliella salina as a potential feedstock for biodiesel: effect of molasses on growth and lipid profile
title_short	Preliminary evaluation of the green microalga Dunaliella salina as a potential feedstock for biodiesel: effect of molasses on growth and lipid profile
title_full	Preliminary evaluation of the green microalga Dunaliella salina as a potential feedstock for biodiesel: effect of molasses on growth and lipid profile
title_fullStr	Preliminary evaluation of the green microalga Dunaliella salina as a potential feedstock for biodiesel: effect of molasses on growth and lipid profile
title_full_unstemmed	Preliminary evaluation of the green microalga Dunaliella salina as a potential feedstock for biodiesel: effect of molasses on growth and lipid profile
title_sort	preliminary evaluation of the green microalga dunaliella salina as a potential feedstock for biodiesel: effect of molasses on growth and lipid profile
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000500763
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Preliminary evaluation of the green microalga Dunaliella salina as a potential feedstock for biodiesel: effect of molasses on growth and lipid profile

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