Production of Lipid and Fatty Acids during Growth of Aspergillus terreus on Hydrocarbon Substrates

An Aspergillus terreus, isolated from oil contaminated soil, could degrade a wide range of petroleum hydrocarbons including the immediate oxidation products of hydrocarbons, like alkanols and alkanals. Among all the linear chain carbon substrates, highest growth of 39.1 ± 3.8 g l⁻¹ (wet weight) was...

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Veröffentlicht in:Applied biochemistry and biotechnology 2010-03, Vol.160 (5), p.1293-1300
Hauptverfasser: Kumar, Adepu Kiran, Vatsyayan, Preety, Goswami, Pranab
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Goswami, Pranab
description An Aspergillus terreus, isolated from oil contaminated soil, could degrade a wide range of petroleum hydrocarbons including the immediate oxidation products of hydrocarbons, like alkanols and alkanals. Among all the linear chain carbon substrates, highest growth of 39.1 ± 3.8 g l⁻¹ (wet weight) was observed when n-hexadecane was used as the sole source of carbon. The growth of the fungus on this highly hydrophobic substrate was associated with the morphological change of the hyphae and increase production of lipid in the cells. The lipid production in the hydrocarbon (n-hexadecane) grown cells was sevenfold higher than the corresponding glucose grown cells. The fatty acid profile of the lipid content formed in the hydrocarbon grown cells was significantly different from the glucose grown cells and was composed of fatty acids with chain length C₁₄ to C₃₃ as revealed from the liquid chromatography electrospray ionization mass spectrometry analyses. Among the ranges, the fatty acids with chain lengths C₁₄ to C₁₈ were predominant in the profile. Considering the fatty acid profile and the high level of lipid production, this A. terreus mediated production of lipid is envisaged to have potential application in the oleochemical industries including the production of biodiesel.
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Among all the linear chain carbon substrates, highest growth of 39.1 ± 3.8 g l⁻¹ (wet weight) was observed when n-hexadecane was used as the sole source of carbon. The growth of the fungus on this highly hydrophobic substrate was associated with the morphological change of the hyphae and increase production of lipid in the cells. The lipid production in the hydrocarbon (n-hexadecane) grown cells was sevenfold higher than the corresponding glucose grown cells. The fatty acid profile of the lipid content formed in the hydrocarbon grown cells was significantly different from the glucose grown cells and was composed of fatty acids with chain length C₁₄ to C₃₃ as revealed from the liquid chromatography electrospray ionization mass spectrometry analyses. Among the ranges, the fatty acids with chain lengths C₁₄ to C₁₈ were predominant in the profile. Considering the fatty acid profile and the high level of lipid production, this A. terreus mediated production of lipid is envisaged to have potential application in the oleochemical industries including the production of biodiesel.</abstract><cop>New York</cop><pub>New York : Humana Press Inc</pub><pmid>19507060</pmid><doi>10.1007/s12010-009-8669-x</doi><tpages>8</tpages></addata></record>
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subjects Acids
Alkanes - pharmacology
Aspergillus - drug effects
Aspergillus - growth & development
Aspergillus - ultrastructure
Aspergillus terreus
Biochemistry
biodegradation
biodiesel
Biological and medical sciences
Biotechnology
Chemistry
Chemistry and Materials Science
Chromatography, Liquid
Contamination
fatty acid composition
Fatty acids
Fatty Acids - analysis
Fatty Acids - biosynthesis
Fundamental and applied biological sciences. Psychology
glucose
Glucose - pharmacology
Hydrocarbons
Hydrocarbons - pharmacology
hyphae
Ionization
Lipid Metabolism - drug effects
Lipids
Liquid chromatography
Mass spectrometry
microbial growth
Oil pollution
petroleum
Petroleum hydrocarbons
polluted soils
Soil contamination
soil fungi
Soils
Spectrometry, Mass, Electrospray Ionization
Substrates
title Production of Lipid and Fatty Acids during Growth of Aspergillus terreus on Hydrocarbon Substrates
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