1. Phytochemical profile, antioxidant and antimicrobial activity of extracts obtained from erva-mate (Ilex paraguariensis) fruit using compressed propane and supercritical CO2
- Author
-
Aline Augusti Boligon, Jaqueline Scapinello, Margareth Linde Athayde, Jacir Dall Magro, Marcus V. Tres, J. Vladimir Oliveira, Ciro E. F. Fernandes, Marshall Palliga, and Aline Bohn
- Subjects
Antioxidant ,Chemistry ,medicine.medical_treatment ,010401 analytical chemistry ,Extraction (chemistry) ,04 agricultural and veterinary sciences ,Antimicrobial ,040401 food science ,01 natural sciences ,Supercritical fluid ,0104 chemical sciences ,Minimum inhibitory concentration ,chemistry.chemical_compound ,0404 agricultural biotechnology ,Phytochemical ,Propane ,medicine ,Organic chemistry ,Food science ,Caffeine ,Food Science - Abstract
Traditionally, Ilex paraguariensis leaves are consumed in tea form or as typical drinks like mate and terere, while the fruits are discarded processing and has no commercial value. The aim of this work to evaluate phytochemical properties, total phenolic compounds, antioxidant and antimicrobial activity of extracts of Ilex paraguariensis fruits obtained from supercritical CO2 and compressed propane extraction. The extraction with compressed propane yielded 2.72 wt%, whereas with supercritical CO2 1.51 wt% was obtained. The compound extracted in larger amount by the two extraction solvents was caffeine, 163.28 and 54.17 mg/g by supercritical CO2 and pressurized propane, respectively. The antioxidant activity was more pronounced for the supercritical CO2 extract, with no difference found in terms of minimum inhibitory concentration for Staphylococcus aureus for the two extracts and better results observed for Escherichia coli when using supercritical CO2.
- Published
- 2016
- Full Text
- View/download PDF