High ethanol concentrations promoted dissolution of the 3 flavonoids; in particular, an increasing trend was observed initially and slightly afterwards up to the 50% ethanol demarcation point, and the yield trends of flavonoids from both leaves and bark were similar.
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Ultrasound-Assisted Extraction of Taxifolin, Diosmin, and Quercetin from <i>Abies nephrolepis</i> (Trautv.) Maxim: Kinetic and Thermodynamic Characteristics.
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