Supercritical fluid extraction of bioactive compounds from walnut leaves
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2024-02-15 21:47
SM ISO690:2012
POPOVICI, Cristina, GITIN, Liliana, ALEXE, Petru. Supercritical fluid extraction of bioactive compounds from walnut leaves. In: Modern Technologies in the Food Industry, Ed. 1, 1-3 noiembrie 2012, Chişinău. Chișinău, Republica Moldova: 2012, Vol.2, pp. 84-89. ISBN 978-9975-87-428-1.
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Modern Technologies in the Food Industry
Vol.2, 2012
Conferința "Modern Technologies in the Food Industry"
1, Chişinău, Moldova, 1-3 noiembrie 2012

Supercritical fluid extraction of bioactive compounds from walnut leaves


Pag. 84-89

Popovici Cristina1, Gitin Liliana2, Alexe Petru2
 
1 Technical University of Moldova,
2 "Dunarea de Jos" University of Galati
 
Disponibil în IBN: 5 octombrie 2020


Rezumat

The extractive efficiency of bioactive compounds from plant material is greatly depended on the extraction techniques. In this study, supercritical fluid extraction (SFE) of bioactive compounds from walnut leaves was used. Work conditions of supercritical fluid extraction were pressure level at 200 bar, temperature at 50 0C and flow rate of CO2 - 20 kg/h. Efficiency of the SFE was evaluated by measuring total polyphenol content (Folin-Ciocalteu assay), reaction kinetics and reducing power of the extract towards DPPH· free radical. Walnut leaves extract obtained by supercritical fluid extraction showed the good antioxidant properties and could be used as a natural, low cost source of bioactive compounds.

Cuvinte-cheie
walnut leaves, supercritical fluid extraction, bioactive compounds, Folin-Ciocalteu’s and DPPH· assays