Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/11749
Title: Alterações fisiológicas e bioquímicas em sementes de café secas em sílica gel e soluções salinas saturadas
Other Titles: Physiological and biochemical changes in coffee seed dried in silica gel and saturated saline solutions
Keywords: Coffea arábica
Armazenagem
Perfil enzimático
Tolerância à dessecação
Velocidade de secagem
Storage
Enzymatic profile
Physiological quality
Desiccation tolerance
Drying rate
Issue Date: Jun-2015
Publisher: Embrapa Informação Tecnológica
Citation: COELHO, S. V. B. et al. Alterações fisiológicas e bioquímicas em sementes de café secas em sílica gel e soluções salinas saturadas. Pesquisa Agropecuária Brasileira, Brasília, v. 50, n. 6, p. 483-491, jun. 2015.
Abstract: The objective of this work was to evaluate the physiological and biochemical changes in coffee seed subjected to rapid drying, in silica gel, or to slow drying in saturated saline solutions. Seeds were dried until they reached the following water contents: 40, 30, 20, 15, 10, and 5% (wet basis). After drying, part of the seeds was immediately evaluated as to their physiological performance and enzymatic profile of the oxidative process, and another part was evaluated after storage, under hermetic conditions, in freeze-drying chamber, for four months. Drying rate and final moisture content had significant effect on seed physiological quality. After rapid drying, in silica gel, seeds tolerated lower final moisture levels. However, after slow drying, seeds with greater water levels showed higher quality. The storage period did not affect germination, but it reduced coffee seed vigor. Rapid drying shows greater damage potential to the endosperm than to the embryos. The enzymatic profile of coffee seed is affected by the final moisture level and the drying rate.
URI: http://repositorio.ufla.br/jspui/handle/1/11749
Appears in Collections:DAG - Artigos publicados em periódicos

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