| Literature DB >> 23768327 |
Aureanna Nairne Negrão Murakami1, Renata Dias de Mello Castanho Amboni, Elane Schwinden Prudêncio, Edna Regina Amante, Carlise Beddin Fritzen-Freire, Brunna Cristina Bremer Boaventura, Isabella de Bona Muñoz, Catia Dos Santos Branco, Miriam Salvador, Marcelo Maraschin.
Abstract
The aim of this study was to characterise the bioactive compounds in mate (Ilex paraguariensis St. Hil) extract and in concentrated mate extract obtained by nanofiltration (NF). Also, the impact of NF on the antioxidant activity of both mate extracts was evaluated in vitro and using eukaryotic cells of Saccharomyces cerevisiae (yeast assay). The results showed a significant increase in the contents of total phenolics (338%), chlorogenic acid (483%), theobromine (323%), caffeine (251%), chlorophyll (321%), condensed tannins (278%) and saponins (211%) in the concentrated mate extract. The concentrated mate extract showed higher in vitro antioxidant activity than the mate extract. According to the results obtained, it can be stated that the use of nanofiltration membrane is a valid approach for the concentration of biologically active compounds in aqueous extract of mate.Entities:
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Year: 2013 PMID： 23768327 DOI： 10.1016/j.foodchem.2013.02.119
Source DB: PubMed Journal: Food Chem ISSN： 0308-8146 Impact factor: 7.514