An Eco-Friendly Supercritical CO2 Recovery of Value-Added Extracts from Olea europaea Leaves
Anastasia Kyriakoudi,
Ioannis Mourtzinos,
Katarzyna Tyśkiewicz
et al.
Abstract:An eco-friendly approach towards the recovery of value-added extracts from olive tree leaves with the aid of supercritical CO2 at 30 MPa was carried out. The impact of extraction temperature (35–90 °C) and presence of co-solvents (ethanol, water, and aqueous ethanol) on the total phenolic, flavonoid, and pigment content, as well as oleuropein, hydroxytyrosol, tyrosol, and α-tocopherol content was determined. In addition, the antioxidant activity of extracts from tree leaves using DPPH, ABTS, and CUPRAC assays … Show more
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