Data/hora: 08/06/2024 16:13:39

Provedor de dados: | 64
País: | Brazil
Título: | Activity of some isoenzymatic systems in stored coffee grains
Autores: | Saath,Reni; Broetto,Fernando; Biaggioni,Marco Antônio Martin; Borém,Flávio Meira; Rosa,Sttela Dellyzete Veiga Franco da; Taveira,José Henrique da Silva.
Data: | 2014-02-01
Ano: | 2014
Palavras-chave: | Coffea arabica L.; Post-harvest processes; Coffee quality.
Resumo: | Considering the worldwide consumption of coffee, it is natural that throughout the history many people have dedicated the research to markers that contribute somehow on gauging its quality. This research aimed to evaluate the biochemical performance of arabica coffee during storage. Coffee in beans (natural) and in parchment (pulped) dried in concrete terrace and in dryer with heated air were packed in jute bags and stored in not controlled environmental conditions. Enzymatic activities of superoxide dismutase, catalase, peroxidase, polyphenoloxidase, esterase and lipoxygenase in coffee grains were evaluated at zero, three, six, nine and twelve months by means of electrophoresis. Independently of the drying method, the activity of isoenzymatic complexes highlighted deteriorative processes in stored grains of coffee. The treatments 60/40º C and 60º C used to reduce the water content imposed a greater stress condition, accelerated metabolism of natural coffee in the storage with decreased activity of defense mechanisms due to latent damage in these grains. Natural coffees are more sensible to high drying temperatures and its quality reduces faster than pulped coffee in the storage.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000100002
Editor: | Editora da Universidade Federal de Lavras
Relação: | 10.1590/S1413-70542014000100002
Formato: | text/html
Fonte: | Ciência e Agrotecnologia  v.38 n.1 2014
Fonte: | info:eu-repo/semantics/openAccess