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Keywords: Bioactive compounds, Fruit quality, Organoleptic properties, Pulp quality, Tropical fruit
Umbu (Spondias tuberosa Arr. Cam.) is a tropical fruit native to the Brazilian Northeast, prized for its sweet-acidic flavour and bioactive compounds. Umbu fruits are mostly obtained through extractive practices from natural tree populations, resulting in high variability and a lack of information about their composition and quality. Therefore, the objective was to characterize the physical and chemical quality of fruits from different accessions of umbu trees in the Oriental Curimataú Paraibano microregion. Seven umbu tree accessions (U04, U06, U13, U15, U16, U19, and U24) were marked, measured, and their fruits collected for analysis. The longitudinal/equatorial diameter ratio (LD/ED), firmness, pulp yield, total soluble solids (SS), pH, total titratable acidity (TA), SS/TA ratio, reducing, non-reducing, and total sugars, phenolic compounds, vitamin C, chlorophylls, total carotenoids, and moisture content were determined. Among the accessions studied, U04 and U13 had higher contents of soluble solids, reducing sugars, total sugars, and vitamin C. Accession U13 presented higher titratable acidity. No differences among accessions were found for the SS/TA ratio and total phenolic compounds. The fruits of the evaluated accessions differed for quality attributes, with U15, U19, and U24 showing better physical attributes, while U04 and U13 showed better flavour attributes.
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