DOI: 10.1016/j.jcou.2017.02.008
Scopus记录号: 2-s2.0-85013668412
论文题名: Supercritical CO2 extraction as a selective method for the obtainment of coumarins from Pterocaulon balansae (Asteraceae)
作者: Torres F.C. ; Medeiros-Neves B. ; Ferreira Teixeira H. ; Kawanoa D. ; Eifler-Lima V.L. ; Cassel E. ; Vargas R.M.F. ; Von Poser G.L.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 18 语种: 英语
英文关键词: Carbon dioxide
; Coumarins
; Epoxy-coumarins
; Supercritical fluid extraction
Scopus关键词: Carbon
; Carbon dioxide
; Effluent treatment
; Essential oils
; Extraction
; High performance liquid chromatography
; Liquid chromatography
; Supercritical fluids
; Constant temperature
; Conventional extraction
; Coumarins
; Epoxy-coumarins
; Pressure increments
; Research groups
; Supercritical CO
; Supercritical fluid extraction (SFE)
; Supercritical fluid extraction
英文摘要: Graphical abstract: Aiming to recover fractions enriched with coumarins, the aerial parts of Pterocaulon balansae Chodat (Asteraceae) were subjected to supercritical fluid extraction (SFE) using CO2 as solvent under constant temperature (40°C) and gradual pressure increments (90, 120, 150 and 200bar). The yields of the coumarins in the extracts were calculated using high-performance liquid chromatography analyses, which allowed the identification of seven coumarins previously reported by our research group. Coumarin 7-((3,3-dimethyloxiran-2-yl)methoxy)-5,6-dimethoxy-2H-chromen-2-one was identified as the major component of all extracts but we also identified considerable amounts of other epoxy-substituted coumarins. The mild conditions provided by the supercritical CO2 extraction (SC-CO2 extraction) may considerably reduce the ring-opening of the epoxy groups in the coumarins from the aerial parts of P. balansae, when compared to the conventional extraction procedures. © 2017 Elsevier Ltd. 资助项目: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
; Conselho Nacional de Desenvolvimento Científico e Tecnológico
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52780
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Torres F.C.,Medeiros-Neves B.,Ferreira Teixeira H.,et al. Supercritical CO2 extraction as a selective method for the obtainment of coumarins from Pterocaulon balansae (Asteraceae)[J]. Journal of CO2 Utilization,2017-01-01,18