Zinc supplementation, production and quality of coffee beans

Revista Ceres

Herminia Emilia Prieto Martinez²  Yonara Poltronieri¹  Adriana Farah¹  Daniel Perrone¹ 

[1] ,Universidade Federal de Viçosa Departamento de Fitotecnia Viçosa Minas Gcrais ,Brazil

关键词: bean size;    electrical conductivity;    potassium leaching;    chlorogenic acids;    berry borer;    antioxidant activity;    tamanho do grão;    condutividade elétrica;    potássio lixiviado;    ácidos clorogênicos;    broca do café;    atividade antioxidante;   

DOI  :  10.1590/S0034-737X2013000200020

来源: SciELO

【 摘 要 】

Besides its importance in the coffee tree nutrition, there is almost no information relating zinc nutrition and bean quality. This work evaluated the effect of zinc on the coffee yield and bean quality. The experiment was conducted with Coffea arabica L. in "Zona da Mata" region, Minas Gerais, Brazil. Twelve plots were established at random with 4 competitive plants each. Treatments included plants supplemented with zinc (eight plots) and control without zinc supplementation (four plots). Plants were subjected to two treatments: zinc supplementation and control. Yield, number of defective beans, beans attacked by berry borers, bean size, cup quality, beans zinc concentration, potassium leaching, electrical conductivity, color index, total tritable acidity, pH, chlorogenic acids contents and ferric-reducing antioxidant activity of beans were evaluated. Zinc positively affected quality of coffee beans, which presented lower percentage of medium and small beans, lower berry borer incidence, lower potassium leaching and electrical conductivity, higher contents of zinc and chlorogenic acids and higher antioxidant activity in comparison with control beans.

【 授权许可】

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