Data/hora: 06/06/2024 03:49:36

Provedor de dados: | 111
País: | China
Título: | Solid-liquid extraction of sorrel calyces with ethanol
Autores: | Olawale, Adegboyega Surajudeen.
Data: | 2013-11-27
Ano: | 2013
Palavras-chave: | Extraction kinetics; Time constant; Extract concentration; Extraction yield; Medicinal herbs.
Resumo: | Ethanol extraction of three particle size distributions of sorrel (Hibiscus sabdariffa) calyces was investigated.  Extraction rate was found to increase with reduced particle size, increased temperature and solvent mass (solvent-feed ratio).  At 30oC, maximum yield or concentration was achieved with 50:1 solvent-feed ratio but no substantial increment occurred in these parameters beyond 20:1 ratio.  No degradation of the extract’s components occurred between 27oC and 70oC since linear relation between extraction yield and temperature was sustained.  Peleg equation and a variant of it gave the best fit for extraction kinetics.  The smallest calyx particles (
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.cigrjournal.org/index.php/Ejounral/article/view/2577
Editor: | International Commission of Agricultural and Biosystems Engineering
Relação: | http://www.cigrjournal.org/index.php/Ejounral/article/view/2577/1813
Formato: | application/pdf

Fonte:

Agricultural Engineering International: CIGR Journal; Vol 15, No 4 (2013): CIGR Journal; 253-257

1682-1130