Article (Scientific journals)
Surface properties of Yarrowia lipolytica and their relevance to γ-decalactone formation from methyl ricinoleate
Aguedo, Mario; Waché, Y.; Belin, J.-M. et al.
2005In Biotechnology Letters, 27 (6), p. 417-422
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Keywords :
Biotransformation; Contact angles; Surface properties; Yarrowia lipolytica; Zeta potential; Adhesion; Aromatic compounds; Cells; Hydrophilicity; Lipids; Positive ions; Surface active agents; Negative charge; Surface charges; Yeast; Yarrowia; Cetrimonium Compounds; Hydrogen-Ion Concentration; Hydrophobicity; Lactones; Lipid Metabolism; Ricinoleic Acids; Surface-Active Agents
Abstract :
[en] The surface of the lipid-degrading yeast, Yarrowia lipolytica, was characterized by contact angle and zeta potential (ζ) measurements. The cells were mainly hydrophilic with a negative charge that was only affected from pH 2 to 4. To study the effects of the surface charges on the biotransformation of methyl ricinoleate into the aroma compound, γ-decalactone, the ζ values of the substrate droplets were modified by adding a cationic surfactant into the medium at concentrations that did not diminish cell viability: the adhesion of the lipid substrate to the cells was increased but not the overall performance of the process, therefore the adhesion is not the rate limiting here. Our methodology offers interesting perspectives for further applications. © Springer 2005.
Disciplines :
Biotechnology
Author, co-author :
Aguedo, Mario ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie biologique industrielle
Waché, Y.;  Laboratoire de Microbiologie, UMR UB/INRA 1232, Ecl. Natl. Sup. Biol. Appl. N., Dijon, France
Belin, J.-M.;  Laboratoire de Microbiologie, UMR UB/INRA 1232, Ecl. Natl. Sup. Biol. Appl. N., Dijon, France
Teixeira, J. A.;  Ctro. de Engenheria Biológica, Universidade Do Minho, Campus de Gualtar, 4710-057 Braga, Portugal
Language :
English
Title :
Surface properties of Yarrowia lipolytica and their relevance to γ-decalactone formation from methyl ricinoleate
Publication date :
2005
Journal title :
Biotechnology Letters
ISSN :
0141-5492
eISSN :
1573-6776
Publisher :
Kluwer Academic Publishers, Netherlands
Volume :
27
Issue :
6
Pages :
417-422
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 05 February 2014

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