| Title: | Volatile compounds and antimicrobial and antioxidant activities of the essential oils of the needles of Pinus densiflora and Pinus thunbergii |
| Address: | "Seoul Metropolitan Government Research Institute of Public Health and Environment, Seoul 427-070, Korea" |
| ISSN/ISBN: | 1097-0010 (Electronic) 0022-5142 (Linking) |
| Abstract: | "BACKGROUND: To investigate the volatile compounds and the antibacterial and antioxidant effects of the essential oils of Pinus densiflora needles (EPDN) and Pinus thunbergii needles (EPTN), the volatile compounds of steam-distilled essential oils were analysed by gas chromatography-mass spectrometry. Antibacterial activities were analysed by performing disc-agar diffusion assay and determining the minimum inhibitory concentrations (MICs) of the essential oils. Antioxidant activities were analysed via radical- and nitrite-scavenging activity assays. RESULTS: The yields of EPDN and EPTN were 0.304% (v/w) and 0.296% (v/w), respectively. In the antibacterial activity assay, the MICs of EPDN and EPTN for Klebsiella pneumoniae, Shigella flexneri and Proteus vulgaris were < 0.4 mg mL(-1) . In the antioxidant activity assay, the 50% inhibitory concentrations (IC(50) ) of EPDN and EPTN were 120 and 30 microg mL(-1) , respectively. At 1680 microg mL(-1) , both EPDN and EPTN exhibited > 50% nitrite-scavenging activity. CONCLUSION: EPDN can be used as a natural antimicrobial substance" |
| Keywords: | "Anti-Bacterial Agents/analysis/*pharmacology Antioxidants/analysis/*pharmacology Bacteria/*drug effects Gas Chromatography-Mass Spectrometry Microbial Sensitivity Tests Oils, Volatile/analysis/*pharmacology Pinus/*chemistry Plant Extracts/chemistry/*pharm;" |
| Notes: | "MedlinePark, Ju-Sung Lee, Gyu-Hee eng England 2011/01/08 J Sci Food Agric. 2011 Mar 15; 91(4):703-9. doi: 10.1002/jsfa.4239. Epub 2011 Jan 6" |
