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Development of a sustainable method for the extraction of suberin-related compounds from biomass using supercritical transesterification

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Academic year: 2021

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Development of a sustainable method for the extraction of suberin-related

compounds from biomass using supercritical transesterification

Brieuc Lecart1,2, Maroua Kammoun1, Hervé Vanderschuren2, Aurore Richel1

1 : Biomass & Green Technologies, University of Liege-Gembloux, Belgium ; 2 : Plant Genetics, University of Liege-Gembloux, Belgium

Brieuc.lecart@uliege.be

Perspective

Background

SuperCritical TransEsterification (SCTE) with methanol already allows to produce biodiesel (fatty acid methyl ester)

from waste vegetable oil

 Catalyst-free

 Easy recovery of products

and solvent

 Not affected by free fatty

acid presence

Hypothesis

SCTE can be used to depolymerize and extract biopolyester like suberin from lignocellulosic biomass

Results

Evolution of polysaccharide and lignin content in cassava peels during SCTE

Polysaccharide and lignin content in potato

peels, cassava peels and oak bark before and after 1h SCTE

Evolution of suberinic material and glycerol release during SCTE

Suberinic material and glycerol released by potato peels, cassava peels and oak bark after 1h SCTE

Perspective

SCTE allows to extract the suberinic material from potato peels, cassava peels and oak bark with an

efficiency comparable to basic transesterification.

Références

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