In vitro inhibition of fungi causing postharvest gray and blue molds on fresh horticultural produce by agricultural by-product extracts

Botrytis cinerea (BC) and Penicillium expansum (PE), the causal agents of gray and blue molds on several fresh fruits and vegetables, are among the most important postharvest pathogens worldwide. Agricultural by-products can be rich in bioactive compounds, many with antifungal properties. They co...

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Autores principales: Souza, Ricardo-Lima-de, Pérez-Gago, María B., Palou, Lluís
Formato: poster
Lenguaje:Inglés
Publicado: 2023
Materias:
Acceso en línea:https://hdl.handle.net/20.500.11939/8708
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author Souza, Ricardo-Lima-de
Pérez-Gago, María B.
Palou, Lluís
author_browse Palou, Lluís
Pérez-Gago, María B.
Souza, Ricardo-Lima-de
author_facet Souza, Ricardo-Lima-de
Pérez-Gago, María B.
Palou, Lluís
author_sort Souza, Ricardo-Lima-de
collection ReDivia
description Botrytis cinerea (BC) and Penicillium expansum (PE), the causal agents of gray and blue molds on several fresh fruits and vegetables, are among the most important postharvest pathogens worldwide. Agricultural by-products can be rich in bioactive compounds, many with antifungal properties. They could be a sustainable alternative to chemical pesticides used to control postharvest fungal diseases. The extraction of value-added compounds from agricultural by-products contributes to circular economy and the EU Green Deal as well. Almond skin (AMS) and avocado seed (AVS) extracts were obtained using ultrasoundassisted extraction and their total phenolic content and total antioxidant capacity were determined. The capacity of extracts to inhibit BC and PE was investigated using a microtiter assay. AVS showed the highest inhibition capacity, with 99% inhibition of both BC and PE, while AMS inhibited BC and PE by 65 and 99%, respectively. The results suggest that the presence of phenols and antioxidants in the extracts may be responsible for the antifungal activity and that these by-product extracts have potential as novel eco-friendly antifungal agents for the management of postharvest diseases. Further in vivo studies are needed to validate these findings.
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spelling ReDivia87082025-04-25T14:54:40Z In vitro inhibition of fungi causing postharvest gray and blue molds on fresh horticultural produce by agricultural by-product extracts Souza, Ricardo-Lima-de Pérez-Gago, María B. Palou, Lluís Agricultural by-products extracts J10 Handling, transport, storage and protection of agricultural products Fresh products Molds Postharvest diseases Botrytis cinerea (BC) and Penicillium expansum (PE), the causal agents of gray and blue molds on several fresh fruits and vegetables, are among the most important postharvest pathogens worldwide. Agricultural by-products can be rich in bioactive compounds, many with antifungal properties. They could be a sustainable alternative to chemical pesticides used to control postharvest fungal diseases. The extraction of value-added compounds from agricultural by-products contributes to circular economy and the EU Green Deal as well. Almond skin (AMS) and avocado seed (AVS) extracts were obtained using ultrasoundassisted extraction and their total phenolic content and total antioxidant capacity were determined. The capacity of extracts to inhibit BC and PE was investigated using a microtiter assay. AVS showed the highest inhibition capacity, with 99% inhibition of both BC and PE, while AMS inhibited BC and PE by 65 and 99%, respectively. The results suggest that the presence of phenols and antioxidants in the extracts may be responsible for the antifungal activity and that these by-product extracts have potential as novel eco-friendly antifungal agents for the management of postharvest diseases. Further in vivo studies are needed to validate these findings. 2023-09-07T08:55:26Z 2023-09-07T08:55:26Z 2023 poster Souza, R. L., Pérez-Gago, M. B. & Palou, L. (2023). In vitro inhibition of fungi causing postharvest gray and blue molds on fresh horticultural produce by agricultural by-product extracts. 12th International Congress of Plant Pathology, Lyon, p. 864. https://hdl.handle.net/20.500.11939/8708 en 2023-08 12th International Congress of Plant Pathology, ICPP Lyon Attribution-NonCommercial-NoDerivatives 4.0 Internacional Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ openAccess electronico
spellingShingle Agricultural by-products extracts
J10 Handling, transport, storage and protection of agricultural products
Fresh products
Molds
Postharvest diseases
Souza, Ricardo-Lima-de
Pérez-Gago, María B.
Palou, Lluís
In vitro inhibition of fungi causing postharvest gray and blue molds on fresh horticultural produce by agricultural by-product extracts
title In vitro inhibition of fungi causing postharvest gray and blue molds on fresh horticultural produce by agricultural by-product extracts
title_full In vitro inhibition of fungi causing postharvest gray and blue molds on fresh horticultural produce by agricultural by-product extracts
title_fullStr In vitro inhibition of fungi causing postharvest gray and blue molds on fresh horticultural produce by agricultural by-product extracts
title_full_unstemmed In vitro inhibition of fungi causing postharvest gray and blue molds on fresh horticultural produce by agricultural by-product extracts
title_short In vitro inhibition of fungi causing postharvest gray and blue molds on fresh horticultural produce by agricultural by-product extracts
title_sort in vitro inhibition of fungi causing postharvest gray and blue molds on fresh horticultural produce by agricultural by product extracts
topic Agricultural by-products extracts
J10 Handling, transport, storage and protection of agricultural products
Fresh products
Molds
Postharvest diseases
url https://hdl.handle.net/20.500.11939/8708
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