Article (Scientific journals)
Engineering Yarrowia lipolytica for the Synthesis of Glutathione from Organic By-Products
Do Thi Hoang, Diem; Fickers, Patrick
2020In Microorganisms, 8 (4)
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Keywords :
glutathione; overexpression; Yarrowia lipolytica; inulin; bioreactor
Abstract :
[en] Tripeptide glutathione, which plays important roles in many cellular mechanisms, is also a biotechnology-oriented molecule with applications in medicine, food and cosmetic. Here, the engineering of the yeast Yarrowia lipolytica for the production of this metabolite at high titer values from various agro-industrial by-products is reported. The constitutive overexpression of the glutathione biosynthetic genes GSH1 and GSH2 encoding respectively γ-glutamylcysteine synthetase and glutathione synthetase, together with the INU1 gene from Kluyveromyces marxianus encoding inulinase yielded a glutathione titer value and a productivity of 644 nmol/mg protein and 510 µmol/gDCW, respectively. These values were obtained during bioreactor batch cultures in a medium exclusively comprising an extract of Jerusalem artichoke tuber, used as a source of inulin, and ammonium sulfate, used as a nitrogen source.
Research center :
MiPI-Gembloux Agrobiotech
Disciplines :
Biotechnology
Author, co-author :
Do Thi Hoang, Diem ;  Université de Liège - ULiège > Terra
Fickers, Patrick ;  Université de Liège - ULiège > Département GxABT > Microbial, food and biobased technologies
Language :
English
Title :
Engineering Yarrowia lipolytica for the Synthesis of Glutathione from Organic By-Products
Publication date :
23 April 2020
Journal title :
Microorganisms
eISSN :
2076-2607
Publisher :
Molecular Diversity Preservation International (MDPI), Basel, Switzerland
Special issue title :
Yeast and Fungal Metabolites
Volume :
8
Issue :
4
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
VIED, grant N° 4278/QD-BGDDT
Funders :
Vietnam International Education Development
Available on ORBi :
since 29 April 2020

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