• Journal of the Korean Applied Science and Technology
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• v.33 no.4
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• pp.848-854
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• 2016

Cymbidium is one of perennial herbs belonging to the Orchidaceae and is known as a medicinal plant. However, its scientific data are insufficient. The purpose of this study is to extract from root and stem of Cymbidium, to investigate the biological effects of them. Cymbidium antibacterial effects of the extracts were performed by antibacterial test against Staphylococcus aureus (S. aureus), Staphylococcus saphrophyticus (S. saprophyticus), Proteus vulgaris (P. vulgaris) and Klebsiella pneumonia (K. pneumonia). Antioxidant effects of the extracts were carried out by DPPH radical scavenging. Total phenolic contents were also determined. Moreover, Cell viability of extracts against MTT assay was cell viability against HepG2 cell and also measures Cholesterol adsorptivity of extracts. In this study, the extracts inhibited the growth of bacteria. Particularly Cymbidium root extracts by only ethanol extraction showed highest antimicrobial effect against S. aureus. The Cymbidium stem extracts by both ethanol extraction and sonication for 1 hour had higher antioxidant activites as well as total phenolic contents. Cell cytotoxicity showed higher than $50{\mu}g/mL$. Cholesterol adsorptivity showed lower than 20%. These results suggest that the Cymbidium might be a source of anti-bacterials and anti-oxidants.