Navegando por Autor "Ferreira, Sindynara"

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Detection of the fruit ripeness stage in the pre-harvest of Coffea arabica
(Empresa Brasileira de Pesquisa Agropecuária - Embrapa, 2025-11-28) Bastos, Flávia de Souza Veronezzi; Pereira, Inara Almeida; Melo, Bruno Manoel Rezende de; Ferreira, Sindynara; Kloss, Rodrigo Barbosa; Santos, Telma Miranda dos
The objective of this work was to determine the optimal number of plants to be sampled and which method best represents the green-maturation stage of the Catuaí Vermelho IAC 144 and Mundo Novo IAC 376-4 Coffea arabica cultivars. The experimental design consisted of four treatments: harvest of the fruits located in the central bud of 12 plagiotropic branches; harvest of the fruits located in the first bud, central bud, and last bud of 12 plagiotropic branches; harvest of all fruits of 12 plagiotropic branches; and harvest of all fruits of the plant. Both coffee cultivars were subjected to all treatments, with the respective evaluation of the percentage of green fruits. For the two cultivars, the first, second, and fourth treatments adequately represent the percentage of green fruits of the crop. It is recommended to use the collection of fruits from the central bud of the plagiotropic branches to determine the percentage of green fruits of both cultivars. For the Catuaí Vermelho IAC 144 and Mundo Novo IAC 376-4 cultivars, the optimal number of plants to be sampled to quantify the green phenological stage is 13 and 14, respectively.
Use of Cladosporium sp. as a bioprotector of coffee quality in different post-harvest conditions
(Universidade Federal de Viçosa, 2023-11-13) Paiva, Felipe Aparecido de; Melo, Bruno Manoel Rezende de; Ferreira, Sindynara; Oliveira, Emanuelle Morais de; Santos, Telma Miranda dos; Castro, Douglas Goulart
The pre-harvest application of the bioprotective agent Cladosporium cladosporioides is an alternative to inhibit these fermentative processes that might occur in coffee beans that were either their storing bag or exposed to simulated rain, because a controlled amount of water was applied to the coffee. The objective of this study was to evaluate the effect of Cladosporium cladosporioides (Fresen) de Vries in the physical-chemical and sensory of the coffee beans. The study was conducted in an arabica coffee plantation, in the municipality of Inconfidentes, state of Minas Gerais, Brazil. In this study used four different doses of the bioprotector and three different pos-harvest conditions. The sour defective coffee beans, electrical conductivity, total titratable acidity, soluble solids, color and it was determined the general quality of coffee of both the left-in-bag and rainfall-exposed variants were positively influenced by the bioprotector. The bioprotector promoted an increase in the quality of the physical and chemical composition and sensory quality of rainfall and left-in-bag coffees compared to coffee beans without bioprotector. The bioprotector also maintained quality in rainfall and left-in-bag coffee when compared with the yard-grown variant. The sensory quality of the yard-grown coffeed was not influenced by the bioprotector.