Open AccessANTIRADICAL ACTIVITY OF THE ESSENTIAL OIL AND WATER-ALCOHOL EXTRACTS OF ORIGANUM VUL-GARE L., GROWING IN THE KRASNOYARSK TERRITORY
Author(s) -
И. Д. Зыкова,
A. Efremov
Publication year - 2021
Publication title -
himiâ rastitelʹnogo syrʹâ
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.2
H-Index - 6
eISSN - 1029-5151
pISSN - 1029-5143
DOI - 10.14258/jcprm.2021018785
Subject(s) - origanum , alcohol , essential oil , dpph , distillation , chemistry , fraction (chemistry) , food science , botany , antioxidant , biology , chromatography , organic chemistry
The antiradical properties of essential oil and water-alcohol extracts of oregano (Origanum vulgare L.), which grows in the Krasnoyarsk territory, were studied in model reactions with a free stable 2,2-diphenyl-1-picrylhydrazyl radical. Essential oil is obtained by exhaustive hydro-distillation. Separate fractions of oil: first 10 minutes from the start of the distillation, the second – after 20 min, the third after 40 min, and the fourth in 80 minutes, a fifth fraction was collected after the end of hydroponically. The results of the DPPH test showed that all the studied samples of essential oil exhibit anti-radical activity (ARA), the values of which increase from 30.4% (the first fraction) to 51.0% (the fifth). The ARA of O. vulgare whole oil was 36.1%. The ARA values of O. vulgare water-alcohol extracts vary from 56.6 to 100% depending on the alcohol concentration and the volume of the added extract. The highest anti-radical activity is 70% extract, and the lowest – 96%. According to the ARA value, the studied extracts and essential oil are O. vulgare, which grows in the Siberian region, can be arranged in the following order: 70% water-alcohol extract > 40% extract > 20% extract > water extract > 96% alcohol extract > essential oil.