Coffee Science - v.14, n.4, 2019
URI permanente para esta coleçãohttps://thoth.dti.ufv.br/handle/123456789/12725
Navegar
2 resultados
Resultados da Pesquisa
Item Sensory quality of roasted coffee beans under different storage conditions(Editora UFLA, 2019-10) Nadaleti, Denis Henrique Silva; Rocha, Hully Alves; Mendonça, Luciana Maria Vieira Lopes; Mendonça, José Marcos Angélico de; Reis, Iêda Bruna dos; Evaristo, Carlos Henrique; Terra, Sávia Del ValeRoasted coffee is subject to loss of quality due to aging, and the intensity of these losses is influenced by packaging. The objective in this study was to evaluate the possible losses in the sensory quality of a specialty roasted coffee, stored in beans for 150 days in different packages and storage temperatures. The experiment was carried out in the Coffee Classification and Industrialization Laboratories of IFSULDEMINAS Campus Muzambinho. The coffee was roasted and after 48 hours it was packed in three different packages and kept stored at room temperature and refrigerated at 18ºC ± 1ºC for 150 days, with evaluations every 50 days, starting from zero time. The experimental design used was entirely randomized with 3 repetitions. Sensory evaluation was performed by three Q-Grader judges, according to the SCAA protocol. The data were evaluated using the SISVAR software, and when significance between treatments was detected, the regression and Scott-Knott tests were applied at the 5% probability level. The packaging used for storage did not interfere in the quality of the coffee. There was an interaction between temperature and storage time for the sensory attribute “body”. The quality decreased linearly with the storage time, from 86 to 80 points, to 84 days of storage.Item Microclimatic characterization of conilon coffee cultivate dinnorth-south alignment in northen Espírito Santo state, Brazil(Editora UFLA, 2019-10) Bis, Ana Paula Pereira; Partelli, Fábio Luiz; Rodrigues, Weverton Pereira; Falqueto, Antelmo Ralph; Espindula, Marcelo Curitiba; Martins, Lima DeleonThe objective in this work was to study the influence of the North-South plantation alignment with respect to microclimatic, growth, and mineral nutrition conditions in order to quantify the variables and to point out possible consequences for the coffee tree. The experiment was carried out in a 6-year-old conilon coffee (Coffea canephora) crop with a mean height of 1.6 m, cultivated in full sun and spaced 3.5 m x 1.0 m. The data were collected on four dates from December 2016 to September 2017 in North Espírito Santo State, Brazil. The irradiance, air temperature, and vapor pressure deficit variables were quantified by means of external data loggers. The leaf temperature was determined by means of thermal images, and the plant growth and nutrient concentration in the leaves on both sides of the plant (East and West) were evaluated. The West side of the plant showed higher values of irradiance, temperature, and vapor pressure deficit in the afternoon, reaching a difference of 5°C between the two sides. The leaf temperature had similar behavior to air temperature, reaching a difference of approximately 12°C between the two sides in the afternoon. Although significant differences were observed for some nutrients between the sides of the plant, macro and micronutrient leaf contents remained within the range considered adequate for the coffee tree.