Sequential one-pot NaDES assisted extraction and biotransformation of rice bran: A new strategy to boost antioxidant activity of natural extracts

• Published in: Process Biochemistry
• Main Authors: Santos, Millena Cristina Barros, Barouh, Nathalie, Barea, Bruno, Villeneuve, Pierre, Bourlieu-Lacanal, Claire, Ferreira, Mariana Simões Larraz, Durand, Erwann
• Other Authors: Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Démarche intégrée pour l'obtention d'aliments de qualité (UMR QualiSud), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Avignon Université (AU)-Université de La Réunion (UR)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Montpellier (UM), Département Performances des systèmes de production et de transformation tropicaux (Cirad-PERSYST), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Ingénierie des Agro-polymères et Technologies Émergentes (UMR IATE), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Foundation for Research Support of State of Rio de Janeiro (FAPERJ) (26/010.100.988/2018; 26/202.709/2018; 26/201.848/2019), National Council for Scientific and Technological Development (CNPq) (427.116/2018; 310.34/2019-4), UNIRIO, Coordination for Improvement of Personnel with Higher Education (CAPES) (financial code 001).
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2022
• Subjects: NaDES; iCALB lipase; rice coproducts; read-to-use extracts; antioxidant; lipid oxidation; [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition; [SDV.IDA]Life Sciences [q-bio]/Food engineering; [SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment; Antarc*; Antarctica
• Online Access: https://hal.science/hal-03625486; https://doi.org/10.1016/j.procbio.2022.03.021

International audience Natural Deep Eutectic solvents (NaDES) was used to produce, after sequential one-pot extraction and biotransformation of naturally pigmented rice bran (RB), ready-to-use extracts that improve the oxidative stability of lipids in an oil-in-water emulsion. Two NaDES-based strategies were implemented. Extraction of phenolics content varied according to the NaDES. The shiftable NaDES (obtained from the acidic-NaDES based on ChCl and xylitol) stands out by showing content of 1525 mg eq gallic acid/100 g RB. The sequential one-pot biotransformation with immobilized Candida antarctica lipase B after increasing pH, was marked by a decrease in phenolics content and a lipids profile variation. These enriched extracts could be used as natural additives or ready-to-use extracts, as confirmed by the encouraging antioxidant results observed in emulsion. Omics tools should be applied to elucidate the structural rearrangement between compounds and the pool of extracted antioxidant molecules that may explain the protection against lipid oxidation.