Changes in antioxidant activity during the ripening of jujube (Ziziphus mauritiana Lamk)

Zozio Suzie, Servent Adrien, Cazal Guillaume, Mbéguié-A-Mbéguié Didier, Ravion Sylvie, Pallet Dominique, Hiol Abel. 2014. Changes in antioxidant activity during the ripening of jujube (Ziziphus mauritiana Lamk). Food Chemistry, 150 : 448-456.

Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY / Quartile : Q1, Sujet : CHEMISTRY, APPLIED / Quartile : Q1, Sujet : NUTRITION & DIETETICS

Résumé : Phenolic compounds from jujube fruits and related antioxidant activities were investigated during the ripening stages. Three different antioxidant assays, including ORAC, FRAP and DPPH, were monitored on crude jujube extract (CJE). Jujube fruits were additionally fractionated into three selective fractions F1, F2, and F3. However, only the FRAP assay gave the relative antioxidant activity for the three fractions. Furthermore, HPLC-ESI-MSMS (Q-Tof) and GC-MS were used to identify the compounds in each purified fraction. Using FRAP, F1 mainly composed of lipids, exhibited the lowest antioxidant activity (?0.080 ± 0.015 mmol trolox/100 g, p < 0.05). F2, rich in flavanols and flavonols, displayed 50-fold higher activity (4.27 ± 0.11 mmol trolox/100 g). Remarkably, F3 with an elevated content of condensed tannins (polymeric proanthodelphinidins), exhibited the highest antioxidant activity (25.4 ± 0.35 mmol trolox/100 g). The presented results showed that the phenolic profiles of the fruits were influenced by their developmental stage. Furthermore, during ripening, the antioxidant activity may be more impacted by the flavanols and condensed tannins. The purified condensed tannins of jujube fruits may be used as natural antioxidant extracts.

Mots-clés Agrovoc : Ziziphus, antioxydant, jus de fruits, tannin, composé phénolique, composition chimique, mûrissage, technique analytique, Ziziphus mauritiana

Mots-clés géographiques Agrovoc : Guadeloupe, France

Classification Agris : Q04 - Composition des produits alimentaires
F60 - Physiologie et biochimie végétale
U30 - Méthodes de recherche
000 - Autres thèmes

Champ stratégique Cirad : Axe 3 (2014-2018) - Alimentation durable

Auteurs et affiliations

• Zozio Suzie
• Servent Adrien, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0002-9670-6707
• Cazal Guillaume, UM2 (FRA)
• Mbéguié-A-Mbéguié Didier, CIRAD-PERSYST-UMR Qualisud (GLP) ORCID: 0000-0002-9256-3999
• Ravion Sylvie, UAG (GLP)
• Pallet Dominique, CIRAD-PERSYST-UMR Qualisud (FRA)
• Hiol Abel, UAG (GLP)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/572394/)

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