Abstract :
Pseudomonas aeruginosa is a bacterium that has a characteristic growth
medium that can distinguish it from other bacteria, namely pigments. Factors that
influence pigment formation are the source of nutrition for each isolation medium
and the incubation time. The purpose of this study was to determine the
formation of Pseudomonas aeruginosa pigments when incubated in various
isolation media with various time variations.
This research uses descriptive design. This research was conducted at the
National STIKES Bacteriology Laboratory and the research was conducted in
January-May. The samples of this research were Pseudomonas aeruginosa
bacteria culture, Tryptic Soy Agar (TSA), Mueller Hinton Agar (MHA), Nutrient
Agar (NA), and Brain Heart Infusion (BHI) isolation media in incubation with
variations of incubation time of 8, 24, 48, 72 and 75 hours. The sampling
technique used is Quota Sampling.
The results showed that the Tryptic Soy Agar (TSA) media was the best
medium to use compared to the NA, MHA and BHI isolation media for the
formation of Pseudomonas aeruginosa pigments with an incubation time of 24 to
72 hours.
It can be concluded that each isolation medium used in this study showed
differences in the formation of Pseudomonas aeruginosa pigments when
incubated with different time variations.