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KMID : 0380619940260050539
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Korean Journal of Food Science and Technology
1994 Volume.26 No. 5 p.539 ~ p.544
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Antimicrobial Effect of Each Solvent Fraction of Morus alba Linne , Sophora flavescens AITON on Listeria monocytogenes
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Abstract
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Ethanol 75% extracts of Morus alba Linne(Ma) and Sophora flavescens AITON(Sf) were fractionated by chloroform(CHC1₃), ethyl acetate(EtOAc), butanol(BuOH) and water. Each fractionate was added to tryptic soy broth varying in extract levels and 5 strains of Listeria monocytogenes(Lm) were inoculated in them for comparing growth inhibition at 32℃ . The CHC1₃ and EtOAc fraction of Ma were superior in growth inhibition of 5 strains but only CHC1₃ fraction of Sf showed comparatively higher inhibition to Lm ATCC 19113. Lm ATCC 19111 and 19113 were totally inhibited by 500 ppm of EtOAc fraction and Lm ATCC 19112, 19114 and 15313 were also absolutely inhibited by 1000 ppm of CHC1₃ fraction of Ma 75% ethanol extract.
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