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Electrostatic separation for sustainable production of rapeseed oil cake protein concentrate: Effect of mechanical disruption on protein and lignocellulosic fiber separation

Kdidi, Samia and Vaca Medina, Guadalupe and Peydecastaing, Jérôme and Oukarroum, Abdallah and Fayoud, Nour El Houda and Barakat, Abdellatif Electrostatic separation for sustainable production of rapeseed oil cake protein concentrate: Effect of mechanical disruption on protein and lignocellulosic fiber separation. (2019) Powder Technology, 344. 10-16. ISSN 0032-5910

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Official URL: https://doi.org/10.1016/j.powtec.2018.11.107

Abstract

Rapeseed oil cake (ROC) is a biomass of particular interest for biorefinery and food activities, due to its high protein, lignin, polyphenol and fiber contents. An environmental separation process combining ultrafine milling and electrostatic separation was recently developed for proteo-lignocellulosic plant fractionation. Several of the parameters of the fractionation process (milling mode, electrode voltage, charge, particle size, etc.) can affect the efficiency of protein separation and extraction. We assessed the impact of three different mechanical modes of milling — ball milling, impact grinding and jet milling — on the electrostatic separation (ES) of lignin and protein from ROC biomass. The initial biomass and the ES fractions were characterized and correlations were identified between particle colors and sizes and their protein and fiber contents. Mechanical grinding had a significant impact on the surface properties of the particles, influencing their charge and the electrostatic separation of lignin and protein from biomass. The combination of impact grinding and electrostatic separation appear the most efficient and effective technologies for rapeseed oil cake protein concentrate

Item Type:Article
HAL Id:hal-02154427
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre de Coopération Internationale en Recherche Agronomique - CIRAD (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
Other partners > Montpellier SupAgro (FRANCE)
Other partners > Université Mohammed VI Polytechnique (MOROCCO)
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Deposited On:05 Nov 2019 13:36

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