Recovery and antioxidant activity of extracts from leptocarpha rivularis by supercritical carbon dioxide extraction
作者： Edgar Uquiche , Fabiola Garcés
DOI: 10.1016/J.SUPFLU.2015.12.003
关键词:
摘要: Abstract We studied the effects of temperature (40, 50, and 60 °C) pressure (9, 12, 15 MPa) on recovery antioxidant activity essential oil from Leptocarpha rivularis leaves by supercritical CO 2 using a 3 factorial design. Experimental data were analyzed with response surface methodology. Extraction yield varied 23.5 to 42.6 g/kg d.s., resultant (DPPH assay) 0.60 1.84 mmol TE/kg. The highest extraction in extract at 40 °C 15 MPa, respectively 2.5 5 times higher than hydrodistilled extract. However, hydroethanolic those extracts. Three target terpenoids L. (α-thujone, β-caryophyllene caryophyllene oxide) quantified GC/FID; they not detected
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