Elderberry pomaces, anthocyanin

Elderberry pomace Anthocyanins CO2 ethanol, water 55 min, 40°C, 21 MPa Seabra et ah, 2010... 

Seabra, I.J. Braga, M.E.M. Batista, M.T. de Sousa, H.C. 2010. Effect of solvent (CO2/ ethanol/Fl20) on the fractionated enhanced solvent extraction of anthocyanins from elderberry pomace. J. Supercrit. Fluids 54 145-152. 

Seabra et al., [17] performed fractionated high pressme extractions from dry and in natura elderberry pomace in order to obtain anthocyanin rich extracts. Experiments were carried out using CO2 supercritical fluid extraction followed by enhanced solvent extraetion (ESE) with C02/ethanol-water mixtures (1-100%, v/v), to obtain anthocyanin rich fractions in the second step, at 313 K and 20 MPa. Higher extract yields, anthocyanin contents and antioxidant activities occurred by the presence of water, both in the raw material and in the solvent mixture. The CO2 dissolved in the ESE solvent mixture favored either anthoeyanin contents or antioxidant activities, which were not directly related. 

Seabra, et al., Fractioned High Pressure Extraction of Anthocyanins from Elderberry (Sambucus nigra L.) Pomace. Food Bioprocess Technol. DOI 10.1007/sl 1947-008-0134-2, 2008. 

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