Adsorption Effect of Activated Charcoal on Enterohemorrhagic Escherichia coli

Journal of Veterinary Medical Science

Katsumi NAKA¹  Shinobu WATARAI²  Keiji OGUMA⁴  Kaoru INOUE⁴  Tatsuji YASUDA¹  Tana²  Hiroshi KODAMA²  Yoshikatsu KODAMA³ 

[1] Department of Cell Chemistry, Institute of Cellular and Molecular Biology, Okayama University Medical School;Laboratory of Veterinary Immunology, Division of Veterinary Science, Graduate School of Agriculture and Biological Sciences, Osaka Prefecture University;Immunology Research Institute in Gifu;Department of Bacteriology, Okayama University Medical School

关键词: activated charcoal;    adsorption;    enterohemorrhagic Escherichia coli;    Escherichia coli O157:H7;    verotoxin;   

DOI  :  10.1292/jvms.63.281

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(30)Cited-By(13)The adsorption property of activated charcoal on verotoxin (VT)-producing Escherichia coli (VTEC) was examined using E. coli O157:H7. In the present study, E. coli O157:H7 strains were effectively adsorbed by activated charcoal. Adsorption was dose-dependent, and the maximum adsorption occurred within 5 min. At 10 mg of activated charcoal, bacteria tested were completely adsorbed. Activated charcoal also had the capacity to adsorb toxin (verotoxin 2) activity from the bacterial extract. Furthermore, the adsorption efficiency of activated charcoal for the normal bacterial flora in the intestine was assessed using Enterococcus faecium, Bifidobacterium thermophilum, and Lactobacillus acidophilus. Activated charcoal showed lower binding capacity to the normal bacterial flora tested than that to E. coli O157:H7 strains. These results suggest that activated charcoal could be a good adsorbent system for the removal of VTEC and verotoxin.

【 授权许可】

Unknown