Antimicrobial activity of Ginkgo biloba leaf extract on Listeria monocytogenes |
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Authors: | L. Xie N.S. Hettiarachchy M.E. Jane M.G. Johnson |
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Affiliation: | The authors are with the Dept. of Food Science, Univ. of Arkansas, 2650 North Young Avenue, Fayetteville, AR 72704. Direct inquires to author Hettiarachchy (E-mail: ). |
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Abstract: | ABSTRACT: The antimicrobial activities of Ginkgo biloba leaf extract (GBE) and the combined effects of GBE and sodium EDTA (sodium Ethylenediaminetetraacetic acid) against Listeria monocytogenes were determined at 4 °C, 25 °C, and 37 °C. Listeria monocytogenes grown at 37 °C for 24 h was inoculated (6 to 7 log CFU/mL) into BHI broth containing either GBE or GBE and EDTA (1.6 mg/mL) with various GBE concentrations of 0.1, 0.25, 0.5, 1, 2.5, 5.0, 7.5, 10.0, 15.0, or 20.0% vol/vol and stored at 4 °C, 25 °C, and 37 °C. The inhibitory effect of the GBE was more pronounced at low temperature of 4 °C. GBE was effective in inhibiting microbial growth. Addition of EDTA enhanced antimicrobial activity of GBE. |
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Keywords: | Ginkgo biloba Listeria monocytogenes EDTA antimicrobial activity |
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