A Study on the Antimicrobial and Antioxidant Activity of Phytoncide Extract

Purpose: This study aims to confirm the physiological activity of cytotoxicity, antioxidant effects, and antibacterial effects of 9 kinds phytoncide extracts were investigated and the possibility of their application as cosmetic materials was studied.Methods: The 9 kinds natural products related to phytoncide extract were selected, extracted, and used as samples. Safety was confirmed through MTT assay, and antioxidant effect through DPPH radical scavenging activity evaluation and antibacterial effect through disc diffusion assay, minimum inhibitory concentration (MIC), and minimum bacteriological concentration (MBC) were evaluated.Results: All 9 kinds phytoncide extracts were confirmed to be safe against Fibroblast cytotoxicity at a concentration of 3.00% or less. The DPPH radical scavenging ability was similar in all phytoncide extracts, and it was confirmed that there was an antioxidant effect. The antibacterial effect did not show strong antibacterial activity against gram-negative bacteria, yeast and fungi as a whole, but it showed excellent antibacterial activity against gram-positive bacteria. Dendranthema zawadskii (Herb.) Tzvelev, Cupressus sempervirens showed antibacterial activity only on gram-positive bacteria. Juniperus chinensis showed excellent antibacterial activity against gram-positive bacteria, yeast. Angelica tenuissima Nakai showed high antibacterial activity against fungi rather than bacteria.Conclusion: These results show that excellent antibacterial and antioxidant effects were confirmed in Dendranthema zawadskii (Herb.) Tzvelev, Cupressus sempervirens, Juniperus chinensis and Angelica tenuissima Nakai at a concentration of 3.00% or less. It is judged that highly likely to be use as a cosmetic material with natural ingredients that replace synthetic preservatives or antioxidants.