Article (Scientific journals)
The lipoxygenase metabolic pathway in plants: potential for industrial production of natural green leaf volatiles
Gigot, Cédric; Ongena, Marc; Fauconnier, Marie-Laure et al.
2010In Biotechnologie, Agronomie, Société et Environnement, 14 (3), p. 451-460
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Keywords :
Lipoxygenase; hydroperoxide lyase; Green leaf volatile
Abstract :
[en] Lipoxygenase enzymatic pathway is a widely studied mechanism in the plant kingdom. Combined actions of three enzymes: lipase, lipoxygenase (LOX) and hydroperoxide lyase (HPL) convert lipidic substrates such as C18:2 and C18:3 fatty acids into short chain volatiles. These reactions, triggered by cell membrane disruptions, produce compounds known as Green Leaf Volatiles (GLVs) which are C6 or C9-aldehydes and alcohols. These GLVs are commonly used as flavors to confer a fresh green odor of vegetable to food products. Therefore, competitive biocatalytic productions have been developed to meet the high demand in these natural flavors. Vegetable oils, chosen for their lipidic acid profile, are converted by soybean LOX and plant HPL into natural GLVs. However this second step of the bioconversion presents low yield due to the HPL instability and the inhibition by its substrate. This paper will shortly describe the different enzymes involved in this bioconversion with regards to their chemical and enzymatic properties. Biotechnological techniques to enhance their production potentialities will be discussed along with their implication in a complete bioprocess, from the lipid substrate to the corresponding aldehydic or alcoholic flavors.
Disciplines :
Biotechnology
Author, co-author :
Gigot, Cédric ;  Université de Liège - ULiège > Centre Wallon de biologie industrielle
Ongena, Marc ;  Université de Liège - ULiège > Chimie et bio-industries > Bio-industries
Fauconnier, Marie-Laure  ;  Université de Liège - ULiège > Sciences agronomiques > Biologie végétale
Wathelet, Jean-Paul ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie générale et organique
du Jardin, Patrick  ;  Université de Liège - ULiège > Sciences agronomiques > Biologie végétale
Thonart, Philippe ;  Université de Liège - ULiège > Département des sciences de la vie > Biochimie et microbiologie industrielles - Bio-industries
Language :
English
Title :
The lipoxygenase metabolic pathway in plants: potential for industrial production of natural green leaf volatiles
Publication date :
March 2010
Journal title :
Biotechnologie, Agronomie, Société et Environnement
ISSN :
1370-6233
eISSN :
1780-4507
Publisher :
Presses Agronomiques de Gembloux, Gembloux, Belgium
Volume :
14
Issue :
3
Pages :
451-460
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 January 2011

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