Two tests on Gran's Remedy have been carried out at the
Department of Microbiology at the University of Otago, Dunedin,
New Zealand.
Gran's Remedy, along with five other products, was tested to
determine the extent to which it inhibited the growth of the
following bacteria, which are commonly found on the skin of the
feet:
RESULTS OF 1996 TEST
|
Staphylococcus epidermidis |
Present in high numbers on human skin |
|
Brevibacterium |
A major cause of foot odor |
|
Acinetobacter |
Thought to contribute to foot odor |
|
Micrococcus |
Thought to contribute to foot odor |
|
Oxford Staphylococcus |
A strain of bacteria used as a standard in antibiotic tests |
|
Trichophyton mentagrophytes |
A common cause of athlete's foot, or tinea, which is also
known to cause foot odor |
All products were dissolved in distilled water to make a one in
five solution. Cultures of the bacteria were adjusted to a
standard density and seeded in agar gel to make a lawn. Standard
paper discs were impregnated with the diluted products and
placed on the agar plates. After incubation, any zones of
inhibition around the discs were measured. If there was no zone,
this indicated that the product had no activity against the
bacteria. Although the size of the zone depended on the ability
of the product to diffuse through the agar, as well as the
activity of the product, very small zones strongly suggested a
low level of activity. All tests were performed in duplicate.
The results showed that Gran's Remedy inhibited all of the above
types of bacteria. Only one other product did this, and overall
this other product showed a consistently lower level of activity
than Gran's Remedy. Gran's Remedy was the best at inhibiting
four of the six microorganisms; best equal at inhibiting
Acinetobacter, and second most effective at inhibiting
Trichophyton. Overall, it was the most effective product in
inhibiting the growth of bacteria thought to cause foot odor.
Results of the May 1991 tests
In these tests, Gran's Remedy, along with two other products,
was tested to determine the extent to which it inhibited the
growth of the following bacteria
|
Staphylococcus epidermidis |
Present in high numbers on human skin |
|
Corynebacterium |
A member of the skin microflora |
|
Candida a |
A member of the skin microflora |
|
Bacillus subtilis a |
Standard organism used in detecting antibacterial activity |
The testing method was the same as that
described above. The results showed that Gran's Remedy was the
only product that inhibited all four bacteria, and the only
one to inhibit Staphylococcus epidermidis and
Bacillus btilis.
