The effectiveness of clitoria ternatea flower extract to inhibit the growth of salmonella typhi bacteria that causes typhoid fever infection

Typhoid fever is one of the endemic diseases that show a tendency to increase every year. This disease is caused by Salmonella enterica serotype typhi and paratyphi. However, the resistance of Salmonella typhi against antibiotic usage can lead to antimicrobacterial resistance or multiple drug resistance. Resistance of some strains of Salmonella typhi by using antibiotics in the long term can be harmful for the patient. This study aims to determine the effectiveness of Clitoria ternatea flower extract to inhibit the growth of Salmonella typhi. Research was conducted at Microbiology Laboratory, Technology Agriculture Department Udayana University, Denpasar Bali-Indonesia. The concentration of flower extract at concentration 20%, 40% and 60% in inhibit the growth of Salmonella typhi were 2.97 ± 0.39, 4.90 ± 0.40 and 7.78 ± 0.5 mm. The higher extract of concentration can give stronger antibacterial characteristics in inhibiting bacterial growth. Therefore, Clitoria ternatea flowers can be used as an alternative traditional medicine to inhibit the growth of Salmonella typhi which cause typhoid fever. In addition, typhoid fever can be prevented by several steps such as maintaining the cleanliness of food and beverage production, environmental sanitation, health education and vaccination.