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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2010, Volume 61, Issue 9,





Gabriela Paun Roman, Elena Neagu, Gabriel Lucian Radu
Membrane Processes for the Purification and
Concentration of Helleborus Purpurascens Extracts
and Evaluation of Antioxidant Activity

Abstract:

This study aim was to prove the efficiency of ultrafiltration process for the concentration of Helleborus purpurascens extracts and to evaluate the extract antioxidant activity. The aqueous and hydro alcoholic extracts of H. purpurascens were concentrated by a multi-stages ultrafiltration cascade, as a novelty in medicinal plant processing. The results revealed that the concentrated extracts have a high antioxidant activity (over 70% DPPH inhibition for hellebore concentrated aqueous extract and over 78% DPPH inhibition for hellebore concentrated hydro alcoholic extract), thus it can be considered a good source for further medicinal applications. Keywords: ultrafiltration process, Helleborus purpurascens, antioxidant activity


Issue: 2010, Volume 61, Issue 9
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