No abstract

Using the radiation–chemical simulation method of free radical reactions with 2,2-diphenyl-1-picrylhydrazyl, we were able to show high antiradical activity of water–ethanol extracts from Murraya paniculata. This will allow for the creation of new bioactive antioxidants based on them. The formation of silver nanoparticles (Ag-NP) was determined using the silver-ion reduction process by M. paniculata extracts. A band of electronic plasmon resonance was identified in the optical absorption spectra of hydrosols of Ag-NP using extracts of dried M. paniculata leaves. A decrease in the number of Candida albicans and Pseudomonas aeruginosa cells after introduction into the Ag-NP system synthesized by the reduction of silver cations using M. paniculata extracts indicates their moderate antimicrobial activity.

As noted in the literature review, the effect of H2O2 on a living cell as an oxidative stress agent is in many ways similar to the effect of X-ray radiation. In living cells, both H2O2 and X-ray irradiation cause oxidative stress and induce the same system of antioxidant anti-stress response. In addition, small doses of radiation can carry certain signaling functions in relation to the activity of microorganisms. In this regard, at this stage of research, it was interesting to find out whether exposure at a dose of 400 Gy and 800 Gy of X-ray radiation could be favourable for the growth of microorganisms with the introduction of extracts of medicinal plants and under which conditions.