Storage time as an index for varietal prediction of mango ripening: A systemic approach validated on five senegalese varieties

Dieye Mor, Diop Ndiaye Nafissatou, Bassama Joseph, Mertz Christian, Bugaud Christophe, Diatta Paterne, Cisse Mady. 2022. Storage time as an index for varietal prediction of mango ripening: A systemic approach validated on five senegalese varieties. Foods, 11:3759, 19 p.

https://doi.org/10.3390/foods11233759

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Résumé : Mangifera indica species presents a wide varietal diversity in terms of fruit size and morphology and also of physicochemical and organoleptic properties of the pulp. In Senegal, in addition to the well-known export varieties, such as 'Kent', local varieties have been little studied particularly during ripening. This study aims to propose prediction models integrating variables deduced from varietal characteristics. Five mango varieties ('Diourou', 'Papaye', 'Sierraleone', 'Boukodiekhal' and 'Sewe') endemic to Senegal were characterized at harvest and followed during ripening storage. Caliber parameters were determined at green-mature stage as well as storage (25 °C) weight losses. Considering the 'ripening storage time' (RST) variable as ripeness level index, intra-varietal prediction models were built by multi-linear regression (R2 = 0.98) using pulp pH, soluble solid content (SSC) and Hue angle. In addition to these physicochemical parameters, variety-specific size, shape and weight loss parameters, were additional variables in multi-linear models (R2 = 0.97) for multi-varietal prediction of RST. Results showed that storage time, which was the most influential factor on the pH, SSC and Hue, can be used as a response for varietal prediction of mango ripening. As a decision support tool, theses statistical models, validated on two seasons, will contribute to reduce post-harvest losses and enhance mango value chain through a better ripening process monitoring.

Mots-clés Agrovoc : propriété physicochimique, Mangifera indica, variété, propriété organoleptique, mûrissage, stockage, technologie alimentaire, mangue

Mots-clés géographiques Agrovoc : Sénégal

Mots-clés libres : Ripening storage time, Multi-linear regression, Varietal prediction, Senegalese mango varieties

Champ stratégique Cirad : CTS 3 (2019-) - Systèmes alimentaires

Agences de financement hors UE : Centre de Coopération Internationale en Recherche Agronomique pour le Développement

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