Keith:
> A question.  By nondissolved do you mean he used a disk that had only 70%
ethanol (ethyl alcohol)
> on it as a control?  IF so how did that disk comepare to the others?


You are right. Sorry, I wasn't precise and made a glaring error. Instead
"nondissolved" I should say: "nondiluted".
So, not about a disk that had only 70% ethanol. "Nondiluted" is propolis
extract in 70% ethanol. Author didn't say the percent of propolis, maybe 10%
or 20%. In experiment, we use that extract nondiluted or diluted (with
distilled water) 1:2, 1:5 and 1:25 (for example).

I am also obliged to correct my quotation regarding C5 and C2.5
ciprofloxacin: not 5 g/ml (2.5 g/ml) but 5 and 2.5 microgram/ml

A suggestion: not to write in a hurry although that subject is very
interesting :) Sorry again.
Predrag

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