Qualidade dos cafés verde-cana e cereja preparados por via úmida

• Ano de defesa: 2011
• Autor(a) principal: Dalvi, Leandro Pin
• Orientador(a): Sakiyama, Ney Sussumu
• Banca de defesa: Pinto, Francisco de Assis de Carvalho , Oliveira, Antônio Carlos Baião de
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Doutorado em Fitotecnia
• Departamento: Plantas daninhas, Alelopatia, Herbicidas e Resíduos; Fisiologia de culturas; Manejo pós-colheita de
• País: BR
• Palavras-chave em Português: Café; Qualidade; Verde-cana; Via úmida
• Palavras-chave em Inglês: Coffee; Quality; Sugarcane-green; Wet processing
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA
• Link de acesso: http://locus.ufv.br/handle/123456789/1146

Significant contributions to improving the quality and the resulting compensation are assigned to the coffee wet processing. This study aimed to determine the yield and quality potential of the coffee picked in stage greencane, when prepared by wet processing. The study was conducted at Unidade de Processamento de Café in the Departamento de Fitotecnia of Universidade Federal de Viçosa. Samples from seven batches of Arabica coffee were used. The samples of code 1, 2, 3, 4 and 5 were extracted from batches picked from Viçosa - MG. Lots 6 and 7 were collected in the municipality of Vargem Alta - ES. All the coffee was submitted to the wet processing, and the fraction of green fruits and green-cane was mechanically separated of the fraction cherry fruits. The grains with parchment were exposed in concrete yard in full sun for a day, for pre-drying. After this time the coffee was transferred to the suspended yard where it remained until moisture around 10.5 to 11%. Then the samples were treated, standardized and classified as defects and sieve to determine the dry weight of 100 grains and the electrical conductivity of the exudate after soaking in 3.5 and 5 hours, beyond the sensory analysis. The experiment was conducted in a randomized design (CRD) with four replications. The treatments were arranged in 7 x 2 factorial (seven batches of coffee and two levels of ripeness: green-cane and cherry). The averages of the plots were grouped by the Scott-Knott test at 5% significance level. As a result grains from cherry fruits of larger size and greater weight of dry matter and fewer defects, improving the yield fraction. After 3.5 hours of soaking was possible to determine with certainty the electrical conductivity of the exudate of the grains. The fraction of green-cane showed the highest conductivity, however, the result was still at low levels. The analysis of the beverage did not detect differences between levels of maturity and was given a satisfactory rating for all treatments.