Abstract :
Shigella dysenteriae is one of the bacteria that can cause diarrhea. Diarrhea
treatment usually uses antibiotics, however, the use of antibiotics is not rational
and continous can increase bacterial resistance. One of the traditional treatments
recommended is to use medicinal plants leaves Catharanthus roseus (L.) G. Don
which contain antibacterial compounds, such as alkaloids, flavonoids, saponins
and tannins. This research was purposed to determine the inhibitory boiled water
of C. roseus (L.) G. Don on the growth of Shigella dysenteriae.
The research method was used descriptive design and post test with control.
The research was conducted at Bacteriology Laboratory STIKES National in
October 2019 until April 2020. The sample of this research is various
concentration of C. roseus (L.) G. Don leaves with 20%, 40%, 60%, 80% and
100% concentration, positive control with Ciprofloxacin 5µg and negative control
with sterile aquadest. Inhibition test of bacteria was carried out using the disk
diffusion method. The sampling technique was using quota sampling.
The results showed that in all boiled water concentrations of leaves of C.
roseus (L.) G. Don could not form a zone of inhibition.
It can be concluded that C. roseus (L.) G. Don leaves boiled water is not
able to form a radical zone against the growth of Shigella dysenteriae and the
concentrations of 100% of C. roseus (L.) G. Don leaves boiled water can not form
the diameter of the barrier zone (radical zone) which is included in the criteria
sensitive to Ciprofloxacin antibiotics based on CLSI 2019.