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Ultrasonication as a highly efficient method of flaxseed mucilage extraction

Fabre, Jean-François and Lacroux, Eric and Valentin, Romain and Mouloungui, Zéphirin Ultrasonication as a highly efficient method of flaxseed mucilage extraction. (2015) Industrial Crops and Products, 65. 354-360. ISSN 0926-6690

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Official URL: https://doi.org/10.1016/j.indcrop.2014.11.015


Three methods of aqueous extraction of flaxseed mucilage (magnetic stirring, microwaves and ultrasounds) were compared and tested, from whole flaxseeds at a concentration of 5% (w/v) and a temperature of 50°C. While microwaves are less efficient than a magnetic stirring, ultrasound-assisted extraction showed the highest mass transfer coefficient and a higher order kinetic. 7% of the seed mass were extracted after only 30min of treatment. Ultrasound assisted extraction decreases the intrinsic viscosity of the mucilage from 12.5dL/g (for magnetic stirring) to 6.2dL/g, and the weight-average molecular weight of the largest polysaccharides from 1.5×106Da to 0.5×106Da, whilst having a limited impact on protein content and monosaccharide composition.

Item Type:Article
HAL Id:hal-02529062
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
Laboratory name:
Deposited On:02 Apr 2020 08:07

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