Abstract:
Medicinal plants remain as an important resource in the ght against many diseases, especially in developing countries. Antioxidants are substances capable of delaying, retarding, and preventing the oxidation of lipids or substances that delay or prevent
free radical reactions during lipid oxidation. Natural antioxidants such as ascorbic acid, tocopherol, phenolic compounds, and
avonoids are a safe alternative to chemical antioxidants. In present work, results of antioxidant activity of raw materials from the
cultivated plant Portulaca oleracea are presented. e extraction time was optimized to 780 minutes; the yield of extractive
substances was 1.25% in the production of CO2 extract under subcritical conditions. For the rst time, the antioxidant activity of
Portulaca oleracea CO2 extract was determined by the amperometric method. Gas chromatography-mass spectrometry (GC-MS)
chemical analysis of Portulaca oleracea CO2 extract dissolved in hexane revealed 37 components, including a complex mixture of
aldehydes, alkanes, alkenes, esters, diterpenes, steroids, vitamin E, and carbohydrates. e investigation results showed that the
Portulaca oleracea CO2 extract was promising for pharmaceutical, cosmetic, and food industries and had great potential for the
prevention and treatment of diseases caused by oxidative stress.
