RT info:eu-repo/semantics/article
T1 Circular economy approach to coffee processing residue valorization: Bioactive by-product extracts for managing pre- and post-harvest fungal pathogens
A1 Sánchez Hernández, Eva
A1 Clérigo de Santiago, Jorge
A1 González García, Vicente
A1 Herrera Sánchez, Marta
A1 Marcos Robles, José Luis
A1 Martín Gil, Jesús
A1 Martín Ramos, Pablo
K1 Antifungal activity
K1 Fusarium xylarioides
K1 Mycotoxin prevention
K1 Plant disease management
K1 Storage fungi
K1 Sustainable biopesticides
K1 31 Ciencias Agrarias
AB The coffee industry generates a large amount of waste that is usually discarded, creating an environmental andeconomic problem. However, these by-products can be a valuable source of bioactive compounds with antimi-crobial properties and present an opportunity for use in crop protection, either pre- or post-harvest. Followingthe principles of the circular economy, this study proposes the extraction and characterization of bioactiveproducts from coffee by-products, as well as the evaluation of their antifungal activity against pathogens thataffect coffee plants and/or stored coffee beans, such as Fusarium xylarioides, Aspergillus flavus, A. niger, andPenicillium verrucosum. In vitro activity assays demonstrate high antimicrobial activity of the husk, parchment,defective green beans with silverskin, and silverskin extracts, with minimum inhibitory concentrations rangingfrom 15.6 to 375 μg mL 1 against F. xylarioides, 31.2–1000 μg mL 1 against A. flavus, 62.5–1000 μg mL 1 againstA. niger, and 62.5–1500 μg mL 1 against P. verrucosum, depending on the by-product extract used. The mosteffective extract, derived from silverskin, was evaluated for pre-harvest protection of coffee plants anddemonstrated complete inhibition of F. xylarioides-induced tracheomycosis at 15.6 μg mL 1. In turn, a concen-tration of 62.5 μg mL 1 of the silverskin extract was sufficient to prevent fungal growth of A. flavus, A. niger, andP. verrucosum on coffee beans. This concentration also prevented mycotoxin production by A. flavus, while ahigher concentration of 125 μg mL 1 was required to prevent aflatoxin production by A. niger. The reportedfindings support coffee by-products extracts as promising alternatives to synthetic fungicides, with the potentialto improve the sustainability of the coffee industry.
PB Elsevier
SN 0261-2194
YR 2026
FD 2026
LK https://uvadoc.uva.es/handle/10324/80103
UL https://uvadoc.uva.es/handle/10324/80103
LA eng
NO Crop Protection, 2026, vol. 199, p. 107442
NO Producción Científica
DS UVaDOC
RD 26-nov-2025