TY - JOUR
T1 - Bactericidal activity of a fermented hot-water extract from Stevia rebaudiana Bertoni towards enterohemorrhagic Escherichia coli O157:H7 and other food-borne pathogenic bacteria
AU - Tomita, Toshio
AU - Sato, Naohiko
AU - Arai, Tomio
AU - Shiraishi, Hiroyuki
AU - Sato, Minoru
AU - Takeuchi, Masaaki
AU - Kamio, Yoshiyuki
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1997
Y1 - 1997
N2 - A fermented aqueous extract from Stevia rebaudiana Bertoni showed strong bactericidal activity towards a wide range of food-borne pathogenic bacteria including enterohemorrhagic Escherichia coli O157:H7. The colony-forming ability of the food-borne pathogenic bacteria tested so far was reduced to < 10-7 when exposed to ≤ 40% (v/v) solutions of the fermented extract at 37 C for 2 hr. Secretion of verocytotoxin 1 and 2 by enterohemorrhagic E. coli was also diminished by fermented extract at a concentration of ≤ 10% (v/v). In contrast, the fermented extract did not significantly kill Bifidobacteria or Lactobacilli. The active principle(s) of the fermented Stevia extract were bactericidal under acidic conditions.
AB - A fermented aqueous extract from Stevia rebaudiana Bertoni showed strong bactericidal activity towards a wide range of food-borne pathogenic bacteria including enterohemorrhagic Escherichia coli O157:H7. The colony-forming ability of the food-borne pathogenic bacteria tested so far was reduced to < 10-7 when exposed to ≤ 40% (v/v) solutions of the fermented extract at 37 C for 2 hr. Secretion of verocytotoxin 1 and 2 by enterohemorrhagic E. coli was also diminished by fermented extract at a concentration of ≤ 10% (v/v). In contrast, the fermented extract did not significantly kill Bifidobacteria or Lactobacilli. The active principle(s) of the fermented Stevia extract were bactericidal under acidic conditions.
KW - Bactericidal activity
KW - Enterohemorrhagic Escherichia coli
KW - Food-borne pathogenic bacteria
KW - Stevia rebaudiana Bertoni
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U2 - 10.1111/j.1348-0421.1997.tb01961.x
DO - 10.1111/j.1348-0421.1997.tb01961.x
M3 - Comment/debate
C2 - 9492187
AN - SCOPUS:0031446371
VL - 41
SP - 1005
EP - 1009
JO - Microbiology and Immunology
JF - Microbiology and Immunology
SN - 0385-5600
IS - 12
ER -