Encapsulation of thymol and limonene in metal-organic frameworks for inhibition of Colletotrichum musae growth

Zuniega Johnrell Samonte, Grabulos Joël, Lebrun Marc, Aumond Thibaud, Daniel Cécile, Brat Pierre, Farrusseng David. 2024. Encapsulation of thymol and limonene in metal-organic frameworks for inhibition of Colletotrichum musae growth. International Journal of Food Science and Technology, 59 (2) : 730-742.

Résumé : Monoterpenes are the most prevalent compounds found in essential oils. They exhibit inhibitory actions against phytopathogenic postharvest fungi. Direct application limits their effectiveness due to their instability, high volatility, hydrophobicity and susceptibility to degradation. Encapsulation systems using metal–organic frameworks (MOFs) have been developed to maximise their use. In this study, four protocols were shown to encapsulate thymol and limonene in porous solids, such as ZIF-8, UiO-66-(COOH)2 and zeolite 13X. Vapourisation and diffusion at 60 °C for 16 h was found to be the most efficient encapsulation process. A larger amount of thymol than limonene was loaded in the porous solids. Thymol released from MOFs slowed down the growth of Colletotrichum musae by up to 6 days at 25 °C. There was a sustained release of thymol even beyond the period of maximum fungal growth. This proof-of-concept study revealed the potential utility of MOFs as carriers of thymol against postharvest fungi.

Mots-clés Agrovoc : lutte après récolte, encapsulation, zéolite, thymol, Colletotrichum, limonène, monoterpène, séparation gaz-huile, séparation huile-eau, Musa (bananes), traitement des aliments

Mots-clés complémentaires : Colletotrichum musae

Mots-clés libres : Colletotrichum musae, Encapsulation, Limonene, MOFs, Monoterpenes, Sustained release, Thymol, Vapour diffusion

Classification Agris : Q02 - Traitement et conservation des produits alimentaires
J10 - Manutention, transport, stockage et conservation des produits agricoles

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

Auteurs et affiliations

• Zuniega Johnrell Samonte, CIRAD-PERSYST-UMR Qualisud (FRA)
• Grabulos Joël, CIRAD-PERSYST-UMR Qualisud (FRA)
• Lebrun Marc, CIRAD-PERSYST-UMR Qualisud (FRA)
• Aumond Thibaud, Université de Lyon (FRA)
• Daniel Cécile, Université de Lyon (FRA)
• Brat Pierre, CIRAD-PERSYST-UMR Qualisud (FRA) ORCID: 0000-0003-0429-9575 - auteur correspondant
• Farrusseng David, Université de Lyon (FRA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/608501/)

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