Data/hora: 17/06/2024 14:29:25

Provedor de dados: | 65
País: | Brazil
Título: | Storage of yerba maté in controlled atmosphere
Autores: | Prestes,Sarah Lemos Cogo; Thewes,Fabio Rodrigo; Sautter,Cláudia Kaehler; Brackmann,Auri.
Data: | 2014-04-01
Ano: | 2014
Palavras-chave: | Ilex paraguariensis; Storage; Coloration and phenolic compounds.
Resumo: | The aim of this study was to evaluate the effect of controlled atmosphere in the change of color, chlorophyll degradation and phenolic compounds concentration in yerba maté thickly ground (“cancheada”) and thinly milled (“socada”). Yerba maté samples from the towns of Arvorezinha (RS - Brazil) and São Mateus do Sul (PR - Brazil) were stored in four levels of oxygen (1, 3, 6 and 20.9kPa of O2) and four levels of carbon dioxide (0, 3, 6 and 18kPa of CO2) and then were analyzed, after nine months of storage. According to the results, the O2 partial pressure reduction decreased the loss of green coloration, kept a higher content of chlorophylls and of total phenolic compounds. In relation to the different levels of CO2, a response as remarkable as O2 was not observed. The yerba maté that was thickly ground (“cancheada”) presented a better storage potential than the one thinly milled (“socada”) in the storage with O2 and with CO2. The 1kPa of O2 condition kept the yerba maté greener and with a higher content of chlorophylls and of total phenolic compounds after nine months of storage. The CO2 partial pressure kept the yerba maté coloration greener and with a higher content of chlorophylls and of total phenolic compounds, regardless of the level used, in the maté from both cultivation areas.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000400028
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/S0103-84782014000400028
Formato: | text/html
Fonte: | Ciência Rural  v.44 n.4 2014
Fonte: | info:eu-repo/semantics/openAccess