The Antibacterial Activities of Lavandula angustifolia L., Mentha piperita L., and Ribes nigrum L. against Oral Bacteria, and Their Antioxidant Activities

There is an expanding interest in medicinal and aromatic plants as a natural alternative to synthetic drugs, especially antimicrobial agents due the growing problem of antibiotic resistance. In recent years, lot reports have been published on activity plant extracts. This study was used Lavandula angustifolia L., Mentha piperita Ribes nigrum L. materials. aims test extracts against oral bacteria. Its purpose produce directly comparable, quantitative, data, addition containing very little information different pathogens. Disc diffusion method studied for tests. Also, minimum inhibitory concentration (MIC) values were determined this study. Additionally, tested stable 2,2-diphenyl-1-picryl-hydrazyl-hydrate• (DPPH•) free radicals non-enzymatic antioxidant activity. Trolox (6-hydroxy-2,5,7,8-tetra-methyl chroman-2-carboxylic acid) standard. The showed inhibition zones methanol extract highest zone pathogen MBKK5. positive control penicillin (10 μg). lowest MIC value taken at 6500 μg /ml DPPH• radical scavenging found 36%. As result, antibacterial potential.