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Article Dans Une Revue Journal of Agricultural and Food Chemistry Année : 2018

Rust and Thinning Management Effect on Cup Quality and Plant Performance for Two Cultivars of Coffea arabica L

Résumé

Beverage quality is a complex attribute of coffee ( Coffea arabica L.). Genotype (G), environment (E), management (M), postharvest processing, and roasting are all involved. However, little is known about how G × M interactions influence beverage quality. We investigated how yield and coffee leaf rust (CLR) disease (caused by Hemileia vastatrix Berk. et Br.) management affect cup quality and plant performance, in two coffee cultivars. Sensory and chemical analyses revealed that 10 of 70 attributes and 18 of 154 chemical volatile compounds were significantly affected by G and M. Remarkably, acetaminophen was found for the first time in roasted coffee and in higher concentrations under more stressful conditions. A principal component analysis described 87% of the variation in quality and plant overall performance. This study is a first step in understanding the complexity of the physiological, metabolic, and molecular changes in coffee production, which will be useful for the improvement of coffee cultivars.
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Dates et versions

hal-03470668 , version 1 (08-12-2021)

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Fabian Echeverria-Beirute, Seth Murray, Patricia Klein, Chris Kerth, Rhonda Miller, et al.. Rust and Thinning Management Effect on Cup Quality and Plant Performance for Two Cultivars of Coffea arabica L. Journal of Agricultural and Food Chemistry, 2018, 66 (21), pp.5281-5292. ⟨10.1021/acs.jafc.7b03180⟩. ⟨hal-03470668⟩
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