Study on the Antibacterial Activity and Its Mechanism of Essential Oil from Madder（Rubia cordifolia L.） Extracted by Hydrodistillation

doi:10.3969/j.issn.1673-1689.2017.08.009

Home > Archive>Volume 36, Issue 8, 2017 >843-848. DOI:10.3969/j.issn.1673-1689.2017.08.009

Study on the Antibacterial Activity and Its Mechanism of Essential Oil from Madder（Rubia cordifolia L.） Extracted by Hydrodistillation
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                        10.3969/j.issn.1673-1689.2017.08.009
                    
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Diameter of inhibition zones（DIZ），MIC & MBC detection via filter paper disk and Resazurin method were investigated on essential oil from the the Rubia Cordifolia L.（REO） to provide a scientific basis for the antibacterial activity of REO. In addition，change on growth curve，conductivity and cell surface ultra-microstructure of the tested bacteria treated with REO were also studied to explore the antimicrobial mechanism. The results of DIZ，MIC & MBC showed that REO was more sensitive to G+（Staphylococcus albus） and G-（Shigella dysenteriae） than G+（Bacillus subtilis） and G-（Escherichia coli）. The results of growth curve，membrane permeability and cell ultrastructure of tested bacteria showed that antibacterial mechanism may due to inhibition split speed of bacterial exponential phase and leading to the increase inpermeability of cell membranes.

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QUAN Meiping, TIAN Chengrui. Study on the Antibacterial Activity and Its Mechanism of Essential Oil from Madder（Rubia cordifolia L.） Extracted by Hydrodistillation[J]. Journal of Food Science and Biotechnology,2017,36(8):843-848.

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Online: November 01,2017
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