Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/10558
Título: Composição química de frutos imaturos de café arábica (Coffea arabica L.) processados por via seca e via úmida
Palavras-chave: Café verde descascado
Café - Qualidade
Café - Processamento
Coffee - Quality
Coffee - Processing
Data do documento: 2011
Editor: Universidade Federal de Lavras
Citação: NOBRE, G. W. et al. Composição química de frutos imaturos de café arábica (Coffea arabica L.) processados por via seca e via úmida. Coffee Science, Lavras, v. 6, n. 2, p. 107-113, maio/ago. 2011.
Resumo: This study was conducted in order to characterize the chemical composition and evaluate the quality of unripe coffee beans, processed under dry and wet conditions, submitted to different periods of rest before peeling, with and without water. The coffee was harvested, separated according to density and peeled. The experiment was conducted in a completely randomized design (CRD) with five repetitions and arranged in a factorial 3 x 2 x 2 (3 rest periods - 12, 24 and 48 hours, two types of processing - dry (natural green) and wet (peeled green ); two rest conditions - presence and absence of water). Three additional treatments were also studied: control sample – unripe fruit produced during cherry peeling, natural unripe fruit (coffee that is not peeled) and peeled unripe fruit, processed immediately after harvest. The coffee was dried in thin layers on a concrete yard and turned every 30 minutes, and after reaching a water content level of 30% (wb) was piled to complete drying. To evaluate quality, the following analysis were carried out: total sugars, reducing and not reducing, total acidity, soluble solids, potassium leaching, electrical conductivity and chlorogenic acids. It was observed that peeling of unripe fruits increases the physiological and chemical indicators of quality of unripe coffee and can be performed immediately after peeling the ripe fruits, with no harm to quality. The use of water during the rest period of green fruit does not contribute to maintaining the quality of coffee, which can be dispensed when processing the green coffee.
URI: http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/406
http://repositorio.ufla.br/jspui/handle/1/10558
Aparece nas coleções:DEG - Artigos publicados em periódicos

Arquivos associados a este item:
Não existem arquivos associados a este item.


Este item está licenciada sob uma Licença Creative Commons Creative Commons