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Article Dans Une Revue Food Chemistry Advances Année : 2024

Selective recovery of glycosylated phenolic compounds from nectarine tree branches (Prunus persica var. nucipersica)

Résumé

Nectarine tree branches, by-products from the arboriculture, contain phenolic compounds. Six main components were revealed by LC-MS and divided into 3 aglycones (A) (catechin, chlorogenic acid, naringenin) and 3 glycosylated (G) (rutin, isoquercetin and prunin) molecules. To maximize their content in nectarine tree branches extract, the extraction process was optimized. The optimum conditions were found at 55% ethanol and 90 °C, leading to 9.05 ± 0.80 mg/gDM of catechin, 3.17 ± 0.31 mg/gDM of chlorogenic acid, 1.15 ± 0.01 mg/gDM of naringenin, 1.56 ± 0.08 mg/gDM of rutin, 0.57 ± 0.02 mg/gDM of isoquercetin, and 1.73 ± 0.11 mg/gDM of prunin. The glycosylated-aglycone ratio is equal to 0.276 ± 0.006, meaning that aglycones are predominant. Purification of the extract was carried out by adsorption. A screening of several resins led to the choice of the XAD-7 resin that provides a recovery rate of 66-84% of glycosylated compounds and 9-46 % of aglycones. The effect of the adsorption process on the evolution of the G/A ratio was studied. Under the studied conditions, this parameter increased by 123%, mainly due to a good performance of the XAD-7 towards glycosylated components and a low recovery rate of chlorogenic acid.

Domaines

Chimie
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Dates et versions

hal-04431326 , version 1 (01-02-2024)

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Emilie Isidore, Gaëlle Willig, Fanny Brunissen, Christian Magro, Charles Monteux, et al.. Selective recovery of glycosylated phenolic compounds from nectarine tree branches (Prunus persica var. nucipersica). Food Chemistry Advances, 2024, 4, pp.100585. ⟨10.1016/j.focha.2023.100585⟩. ⟨hal-04431326⟩

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