Application of molecular sieves in the fractionation of lemongrass oil from high-pressure carbon dioxide extraction
Título del documento: Application of molecular sieves in the fractionation of lemongrass oil from high-pressure carbon dioxide extraction
Revista: Brazilian journal of chemical engineering
Base de datos: PERIÓDICA
Número de sistema: 000309098
ISSN: 0104-6632
Autors: 1
2
Institucions: 1Universidade Regional Integrada do Alto Uruguai e das Missoes, Departamento de Engenharia de Alimentos, Erechim, Rio Grande do Sul. Brasil
2Universidade Regional Integrada do Alto Uruguai e das Missoes, Departamento de Quimica, Erechim, Rio Grande do Sul. Brasil
Any:
Període: Jun
Volum: 23
Número: 2
Paginació: 219-225
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés The aim of this work was to study the feasibility of simultaneous process of high-pressure extraction and fractionation of lemongrass essential oil using molecular sieves. For this purpose, a high-pressure laboratory-scale extraction unit coupled with a column with four different stationary phases for fractionation: ZSM5 zeolite, MCM-41 mesoporous material, alumina and silica was employed. Additionally, the effect of carbon dioxide extraction variables on the global yield and chemical composition of the essential oil was also studied in a temperature range of 293 to 313 K and a pressure range of 100 to 200 bar. The volatile organic compounds of the extracts were identified by a gas chromatograph coupled with a mass spectrometer detector (GC/MS). The results indicated that the extraction process variables and the stationary phase exerted an effect on both the extraction yield and the chemical composition of the extracts
Disciplines Química
Paraules clau: Fitoquímica,
Citronela,
Aceites esenciales,
Extracción de alta presión,
Dióxido de carbono,
Tamices moleculares,
Fraccionamiento químico,
Cymbopogon citratus
Keyword: Chemistry,
Phytochemistry,
Lemongrass,
Essential oils,
High-pressure extraction,
Carbon dioxide,
Molecular sieves,
Chemical fractioning,
Cymbopogon citratus
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