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
Autores: 1
2
Instituciones: 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
Año:
Periodo: Jun
Volumen: 23
Número: 2
Paginación: 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
Disciplinas: Química
Palabras clave: 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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