Extraction of camelina mucilage with ultrasound and high flow rate fluid circulation - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Industrial Crops and Products Year : 2020

Extraction of camelina mucilage with ultrasound and high flow rate fluid circulation

Eric Lacroux
Zephirin Z. Mouloungui

Abstract

As the outermost layer of many oleaginous seeds, mucilage can be extracted by different shear forces. At lab scale, ultrasound is an effective extraction method and is associated here with hydrodynamic forces on a higher scale. In the example of camelina mucilage, an ultrasonic tubular reactor and a recirculating pump are used separately and combined with a response surface methodology. With a seed concentration of 10 % in water, mucilage extraction yields of 6.9 +/- 1.5 % and 6.6 +/- 0.3 % are obtained after 55' of pulsed ultrasonic treatment with a 3 L ultrasonic tubular reactor and a lab scale (100 mL) ultrasonic probe, respectively. High flow rate recirculation (100 L/min) used alone allows yields of more than 10 %. Extraction efficiency then depends directly on the rheological behavior of the medium and allows a high seed concentration (up to 15 %). The combination of ultrasounds and high flow rate circulation reveals a high importance of ultrasound on protein composition and rheological behavior of mucilage while extraction yield, protein and ash content are mainly controlled by circulation time.
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Dates and versions

hal-02621769 , version 1 (20-06-2023)

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Jean-François Fabre, Eric Lacroux, Gwendoline Grave, Zephirin Z. Mouloungui. Extraction of camelina mucilage with ultrasound and high flow rate fluid circulation. Industrial Crops and Products, 2020, 144, pp.112057. ⟨10.1016/j.indcrop.2019.112057⟩. ⟨hal-02621769⟩
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