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Filtration-compression step as downstream process for flavonoids extraction from citrus peels: Performances and flavonoids dispersion state in the filtrate

Zarate Vilet N., Gué E., Servent Adrien, Delalonde Michèle, Wisniewski C.. 2020. Filtration-compression step as downstream process for flavonoids extraction from citrus peels: Performances and flavonoids dispersion state in the filtrate. Food and Bioproducts Processing, 120 : pp. 104-113.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Abstract : Initiative of waste treatment has to be based on user-friendly technologies, using robust, cost-effective and low-energy consuming processes. The global objective of this study was to reduce technical steps for the extraction of flavonoids (naringin and narirutin) from citrus peel (grapefruit peel). After a first fresh peel grinding, the relevance of a simple filtration-compression, as a first downstream process, of the obtained slurry was studied. An optimization of this solid-liquid separation was proposed and the impact of a pectinolytic enzymatic treatment, resulting potentially in a larger release of flavonoids, was investigated. The results demonstrated that a preliminary step of filtration-compression, directly realized on fresh grinded peels as downstream processing for flavonoids extraction could be pertinent and that the enzymatic treatment improved the slurry filterability. An optimal separation was obtained with a transmembrane pressure of 5 bar, leading to highest extractable liquid phase volume and to an extraction around 80% of naringin and narirutin. A modelling of the filtration step, essential for the scaling of a filtration-compression process on site, was proposed. An originality of this work was to identify the dispersion state of the flavonoids within the liquid phase, capital identification for a relevant choice of the subsequent extraction step of these compounds.

Mots-clés Agrovoc : Citrus paradisi, Flavonoïde, Naringine, Pelure, Utilisation des déchets, Déchet alimentaire, Filtration, Extraction par pression, Pressage

Mots-clés complémentaires : Narirutine

Mots-clés libres : Downstream process, Filtration-compression, Enzymatic treatment, Grapefruit peels, Flavonoids, Naringin, Narirutin

Classification Agris : Q01 - Food science and technology
Q70 - Processing of agricultural wastes

Champ stratégique Cirad : CTS 7 (2019-) - Hors champs stratégiques

Auteurs et affiliations

  • Zarate Vilet N., Montpellier SupAgro (FRA) - auteur correspondant
  • Gué E., Montpellier SupAgro (FRA)
  • Servent Adrien, CIRAD-PERSYST-UMR Qualisud (FRA)
  • Delalonde Michèle, Montpellier SupAgro (FRA)
  • Wisniewski C., Montpellier SupAgro (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/595851/)

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