Data/hora: 11/06/2024 18:43:40

Provedor de dados: | 86
País: | Brazil
Título: | Production, chemical composition, and quality of Arabic coffee subjected to copper doses
Autores: | Martinez,Herminia Emilia Prieto; Lacerda,José Soares de; Clemente,Junia Maria; Silva Filho,Jaime Barros da; Pedrosa,Adriene Woods; Santos,Ricardo Henrique Silva; Cecon,Paulo Roberto.
Data: | 2018-04-01
Ano: | 2018
Palavras-chave: | Coffea arabica; Nutrition; Sensory analysis.
Resumo: | Abstract: The objective of this work was to evaluate the effect of copper on the chemical composition of coffee beans and on the quality of the beverage, relating both of them to the Cu leaf contents in coffee (Coffea arabica) plants. Coffee plants were grown in a hydroponic system containing 0.2, 0.4, 0.8, 1.6, and 3.2 μmol L-1 Cu until fruit setting. Coffee bean production was evaluated, and, after the cherries were dried, the following characteristics were determined: leaf Cu content; total titratable acidity; color index; electrical conductivity; leached K; polyphenol oxidase (PPO) activity; concentrations of caffeine, trigonelline, organic acids, total phenols, chlorogenic acids (3-CQA, 4-CQA, and 5-CQA), sucrose, glucose, arabinose, mannose, and galactose; and sensory quality of roasted beans. Cu increased bean yield, PPO activity, and the concentrations of organic acids, 3-CQA, sucrose, and arabinose. Total titratable acidity, total phenols, 4-CQA, and 5-CQA were reduced with increasing Cu doses. Leaf contents related to the maximum and minimum values of desirable and undesirable quality attributes ranged from 5.6 to 11.4 mg kg-1 Cu, respectively. Copper affects the production and chemical composition of coffee beans, and the attributes related to quality are maximized in plants with low leaf contents of the nutrient.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000400443

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/s0100-204x2018000400006
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.53 n.4 2018
Fonte: | info:eu-repo/semantics/openAccess