Improving the shelf life of sugarloaf pineapple (Ananas comosus) in Benin: Pre and post-harvest physiological interventions
Ahokpossi A., Fassinou Hotegni V.N., Chillet M., Grabulos J., Gardes L., Barral B., Mertz C., Adje C.A., Poss C., Brat P., Achigan-Dako E.G.. 2025. s.l. : s.n., 1 p.. International congress on Biosolutions (Biosolutions 2025), 2025-09-23/2025-09-26, Perpignan (France).
Sugarloaf pineapple (Ananas comosus) is the third most cultivated crop in Benin with a high market potential. Despite such specific attribute, the fruit remains highly perishable (short shelf life) due to physiological sensitivity, and rapid physicochemical changes. This study aimed to explore strategies to extend the shelf life of Sugarloaf pineapple in Benin using pre harvest (evaluation of neem oil-coated urea fertilizer on fruit quality and productivity, use of cumulative thermal time to determine optimal harvest maturity) and postharvest (assessment of postharvest damages and application of active coatings and elicitors to improve postharvest preservation). Key physicochemical parameters, including firmness, pH, total soluble solids, and moisture content, were measured to assess fruit quality. The findings revealed the prevalence of postharvest disorders such as translucency, black rot, vitreous core, Brown spot, insect damage, brown heart, crown rot and sunburned. A higher K2O: N fertilization ratio significantly increased fruit weight and sugar content. The use of neem oil-coated urea improved nitrogen use efficiency, reduced nutrient loss, and contributed to better performance and economic returns. Significant differences were observed in physicochemical properties and shelf life of fruits harvested at various maturity stages. Harvesting at 2200°C.days and 2300°C.days extended the shelf life to 21 days while maintaining export-grade quality. Treatments involving active coatings and elicitors also contributed to preserving fruit quality during storage. Based on these results, it is recommended that farmers apply a fertilization scheme with a K2O:N ratio of 0.35 reducing then the amount of urea. Harvesting within the thermal window of 2200-2300°C.days ensures optimal fruit quality and shelf life, enhancing the competitiveness of Benin's sugarloaf pineapple in both domestic and international markets.
Mots-clés : ananas (fruits); aptitude à la conservation; préservation des aliments; physiologie après récolte; bénin
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Agents Cirad, auteurs de cette publication :
- Ahokpossi Ariane — Persyst / UMR QUALISUD
- Barral Bastien — Persyst / UMR QUALISUD
- Brat Pierre — Persyst / UMR QUALISUD
- Chillet Marc — Persyst / UMR QUALISUD
- Gardes Laëtitia — Persyst / UMR QUALISUD
- Grabulos Joël — Persyst / UMR QUALISUD
- Mertz Christian — Persyst / UMR QUALISUD
- Poss Charlie — Persyst / UMR QUALISUD
