Data/hora: 05/06/2024 18:54:53

Provedor de dados: | 52
País: | Brazil
Título: | Extraction optimization of soluble compounds of yerba maté
Autores: | Sambiassi,César; Escalada,Andrea M.; Schmalko,Miguel E.
Data: | 2002-06-01
Ano: | 2002
Palavras-chave: | Yerba maté; Soluble compounds; Optimization.
Resumo: | The objective of this research was the extraction optimization of water soluble compounds of yerba maté. Measures variables were extract concentration and weight of leaves and twigs. Controlled variables were time and temperature of extraction and water/solid relation. A surface response method of three variables was used as experimental design, with 20 experiences in each case. The range of each variable, defined in the experimental design, was: extraction time, 13.2 to 46.8 minutes; temperature, 48.2 to 81.8°C and water solid relation, 4.64 to 11.36 g water/100 g of dry solid. Extract weight varied from 13.14 to 29.56 g in leaves and 8.98 to 16.32 g in twigs (each one per 100 g of dry solid). Extract concentration varied between 2.17 and 3.43 g/100 ml in leaves and between 1.32 and 2.31 g/100 ml in twigs. The results were fit to a linear equation in each case.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000200010
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132002000200010
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.45 n.2 2002
Fonte: | info:eu-repo/semantics/openAccess