Lebot Vincent, Lawac Floriane, Muñoz-Cuervo Ismael, Mercier Pierre-Edouard, Legendre Laurent. 2023. Metabolite fingerprinting of cassava (Manihot esculenta Crantz) landraces assessed for post-harvest physiological deterioration (PPD). Food Chemistry, 421:136217, 11 p.
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Résumé : Cassava landraces are impacted by post-harvest physiological deterioration (PPD). 34 primary/secondary metabolites (carotenes, flavonols, indols, phenolic, hydroxycinnamic, and organic acids) were analysed using HPLC/GC–MS in 72 landraces harvested 8 months after planting (MAP) to clarify whether these compounds may play a role in PPD tolerance. Cluster analysis differentiated a first group with high organic acids contents, citric acid being dominant, a second group with landraces high in tryptophan, a third group including landraces with high phenolic and hydroxycinnamic acids content, and a fourth group characterised by 8 carotenoids. PPD tolerant and susceptible landraces were present in each group. To determine if PPD is related to age of harvest, 174 landraces were harvested at 6, 8, 10 and 12 MAP. Scopoletin, sucrose and glucose were analysed. PPD was positively correlated with DMC and negatively correlated with scopoletin at all ages of harvest. Scopoletin is a useful biomarker to characterize landraces.
Mots-clés Agrovoc : physiologie après récolte, détérioration, race indigène, métabolite, Manihot esculenta
Mots-clés libres : Manioc, Déterioration post récolte, Scopolétine
Classification Agris : Q01 - Sciences et technologies alimentaires - Considérations générales
Q02 - Traitement et conservation des produits alimentaires
Q04 - Composition des produits alimentaires
Champ stratégique Cirad : CTS 3 (2019-) - Systèmes alimentaires
Agences de financement hors UE : International Atomic Energy Agency
Auteurs et affiliations
- Lebot Vincent, CIRAD-BIOS-UMR AGAP (VUT) - auteur correspondant
- Lawac Floriane, VARTC (VUT)
- Muñoz-Cuervo Ismael, Université de Lyon (FRA)
- Mercier Pierre-Edouard, Université de Lyon (FRA)
- Legendre Laurent, Université de Lyon (FRA)
Source : Cirad-Agritrop (https://agritrop.cirad.fr/604763/)
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