Kinetic profile of the cellular lipid composition in an oleaginous Yarrowia lipolytica capable of producing a cocoa-butter substitute from industrial fats.
Identifieur interne : 000218 ( PubMed/Corpus ); précédent : 000217; suivant : 000219Kinetic profile of the cellular lipid composition in an oleaginous Yarrowia lipolytica capable of producing a cocoa-butter substitute from industrial fats.
Auteurs : S. Papanikolaou ; I. Chevalot ; M. Komaitis ; G. Aggelis ; I. MarcSource :
- Antonie van Leeuwenhoek [ 0003-6072 ] ; 2001.
English descriptors
- KwdEn :
- Culture Media, Dietary Fats (analysis), Dietary Fats (metabolism), Fermentation, Kinetics, Lipid Metabolism, Lipids (chemistry), Oleic Acid (analysis), Oleic Acid (metabolism), Plant Oils (metabolism), Stearic Acids (analysis), Stearic Acids (metabolism), Yarrowia (growth & development), Yarrowia (metabolism).
- MESH :
- chemical , analysis : Dietary Fats, Oleic Acid, Stearic Acids.
- chemical , chemistry : Lipids.
- chemical , metabolism : Dietary Fats, Oleic Acid, Plant Oils, Stearic Acids.
- chemical : Culture Media.
- growth & development : Yarrowia.
- metabolism : Yarrowia.
- Fermentation, Kinetics, Lipid Metabolism.
Abstract
Cell growth, lipid accumulation and cellular lipid composition of Yarrowia lipolytica growing on mixtures of industrial fats containing stearic, oleic, linoleic and palmitic acid have been studied. During growth, the strain incorporated oleic and linoleic acids more rapidly than the saturated fatty acids. Relatively high lipid accumulation (up to 0.44 g of lipids per g of dry matter) was observed when stearic acid was included in the culture medium. In contrast, substrates rich in oleic acid did not favor cellular lipid accumulation. The accumulated lipids, mainly composed of triacylglycerols (45-55% w/w), demonstrated a different total fatty acid composition compared with that of the substrate; in all cases, the microorganism showed the unusual capacity to increase its cellular stearic acid level, even if this fatty acid was not found in high concentrations in the substrate. This permitted the synthesis of interesting lipid profiles with high percentages of stearic acid and non-negligible percentages of palmitic and oleic acid, with a composition resembling that of cocoa-butter.
PubMed: 11827207
Links to Exploration step
pubmed:11827207Le document en format XML
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<author><name sortKey="Papanikolaou, S" sort="Papanikolaou, S" uniqKey="Papanikolaou S" first="S" last="Papanikolaou">S. Papanikolaou</name>
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<author><name sortKey="Chevalot, I" sort="Chevalot, I" uniqKey="Chevalot I" first="I" last="Chevalot">I. Chevalot</name>
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<author><name sortKey="Komaitis, M" sort="Komaitis, M" uniqKey="Komaitis M" first="M" last="Komaitis">M. Komaitis</name>
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<author><name sortKey="Aggelis, G" sort="Aggelis, G" uniqKey="Aggelis G" first="G" last="Aggelis">G. Aggelis</name>
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<author><name sortKey="Marc, I" sort="Marc, I" uniqKey="Marc I" first="I" last="Marc">I. Marc</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Kinetic profile of the cellular lipid composition in an oleaginous Yarrowia lipolytica capable of producing a cocoa-butter substitute from industrial fats.</title>
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<term>Dietary Fats (analysis)</term>
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<term>Fermentation</term>
<term>Kinetics</term>
<term>Lipid Metabolism</term>
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<term>Oleic Acid (analysis)</term>
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<front><div type="abstract" xml:lang="en">Cell growth, lipid accumulation and cellular lipid composition of Yarrowia lipolytica growing on mixtures of industrial fats containing stearic, oleic, linoleic and palmitic acid have been studied. During growth, the strain incorporated oleic and linoleic acids more rapidly than the saturated fatty acids. Relatively high lipid accumulation (up to 0.44 g of lipids per g of dry matter) was observed when stearic acid was included in the culture medium. In contrast, substrates rich in oleic acid did not favor cellular lipid accumulation. The accumulated lipids, mainly composed of triacylglycerols (45-55% w/w), demonstrated a different total fatty acid composition compared with that of the substrate; in all cases, the microorganism showed the unusual capacity to increase its cellular stearic acid level, even if this fatty acid was not found in high concentrations in the substrate. This permitted the synthesis of interesting lipid profiles with high percentages of stearic acid and non-negligible percentages of palmitic and oleic acid, with a composition resembling that of cocoa-butter.</div>
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<ArticleTitle>Kinetic profile of the cellular lipid composition in an oleaginous Yarrowia lipolytica capable of producing a cocoa-butter substitute from industrial fats.</ArticleTitle>
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<Abstract><AbstractText>Cell growth, lipid accumulation and cellular lipid composition of Yarrowia lipolytica growing on mixtures of industrial fats containing stearic, oleic, linoleic and palmitic acid have been studied. During growth, the strain incorporated oleic and linoleic acids more rapidly than the saturated fatty acids. Relatively high lipid accumulation (up to 0.44 g of lipids per g of dry matter) was observed when stearic acid was included in the culture medium. In contrast, substrates rich in oleic acid did not favor cellular lipid accumulation. The accumulated lipids, mainly composed of triacylglycerols (45-55% w/w), demonstrated a different total fatty acid composition compared with that of the substrate; in all cases, the microorganism showed the unusual capacity to increase its cellular stearic acid level, even if this fatty acid was not found in high concentrations in the substrate. This permitted the synthesis of interesting lipid profiles with high percentages of stearic acid and non-negligible percentages of palmitic and oleic acid, with a composition resembling that of cocoa-butter.</AbstractText>
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