Surface properties of Yarrowia lipolytica and their relevance to gamma-decalactone formation from methyl ricinoleate. - École Nationale Supérieure de Biologie Appliquée à la Nutrition et à l'Alimentation ENSBANA Accéder directement au contenu
Article Dans Une Revue Biotechnology Letters Année : 2005

Surface properties of Yarrowia lipolytica and their relevance to gamma-decalactone formation from methyl ricinoleate.

Résumé

The surface of the lipid-degrading yeast, Yarrowia lipolytica, was characterized by contact angle and zeta potential (zeta) 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, gamma-decalactone, the zeta 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.

Dates et versions

hal-00368200 , version 1 (14-03-2009)

Identifiants

Citer

Mario Aguedo, Yves Waché, Jean-Marc Belin, José A Teixeira. Surface properties of Yarrowia lipolytica and their relevance to gamma-decalactone formation from methyl ricinoleate.. Biotechnology Letters, 2005, 27 (6), pp.417-22. ⟨10.1007/s10529-005-1776-z⟩. ⟨hal-00368200⟩
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