Adsorption Effect of Activated Charcoal on Enterohemorrhagic Escherichia coli.
Katsumi NAKA, Shinobu Watarai, Tana Tana, Kaoru Inoue, Yoshikatsu Kodama, Keiji Oguma +2 more
Journal of Veterinary Medical Science
Abstract
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.
Extracted Claims
6 claims extracted from this paper into the knowledge graph
activated charcoal binds normal bacterial flora
“Activated charcoal showed lower binding capacity to the normal bacterial flora tested than that to E. coli O157:H7 strains.”
activated charcoal adsorbs verotoxin (VT)-producing Escherichia coli (VTEC)
“In the present study, E. coli O157:H7 strains were effectively adsorbed by activated charcoal.”
activated charcoal adsorbs verotoxin 2 activity from bacterial extract
“Activated charcoal also had the capacity to adsorb toxin (verotoxin 2) activity from the bacterial extract.”