Investigating the aroma transition during rapid mango ripening driven by dynamic catabolism of fatty acids

Food Chem. 2025 Jun 24:491:145326. doi: 10.1016/j.foodchem.2025.145326. Online ahead of print.

Abstract

This study investigated the formation and transformation of key mango aroma during rapid ripening. Physicochemical analysis and volatilomics results showed that (1) a total of 151 volatile compounds were identified across three ripening stages (immature, ripe, and overripe). Among these, 23 volatiles, including (E,Z)-2,6-nonadienal and geraniol (odor activity value >1), were identified as the dominant aroma compounds. (2) (E)-2-hexenal (green odor) and (E)-2-nonenal (waxy odor) were key discriminative volatiles for immature and overripe mangoes, respectively (VIP > 6). (3) Volatile divergence across stages was primarily driven by linolenic acid and linoleic acid catabolism. During ripening, C6 aldehydes derived from linolenic acid metabolism, such as (E,Z)-2,6-nonadienal, conferred the characteristic mango aroma. During overripeness, linolenic acid metabolism was weakened, and linoleic acid decomposition increased by 48 %, resulting in the production of off-flavor compounds, including (E)-2-nonenal and (Z)-4-heptenal. These findings provide new insights for modern industrial mango processing, facilitating enhanced product quality.

Keywords: Aroma transformation; Fatty acids; Mango; Off-flavor; Rapid ripening.