Uji Daya Hambat Ekstrak Bunga Kembang Sepatu (Hibiscus rosa-sinensis L.) terhadap Pertumbuhan Bakteri Streptococcus mutans

Abstract

Hibiscus plant (Hibiscus rosa-sinensis L.) contains several antibacterial compounds such as tannin, alkaloids, triterpenoids, cyanidine, glycosides, and quercetin. One alternative to deal with diseases such as caries caused by bacterial infections is the use of hibiscus (Hibiscus rosa-sinensis L.). This study was aimed to determine the inhibitory effect of hibiscus flower extract on the growth of Streptococcus mutans bacteria causing caries. This was an experimental study with the modified Kirby-Bauer method using disks. Hibiscus flowers were obtained from Kotamobagu, North Sulawesi, and extracted by using maceration method and 96% ethanol as the solvent. The results showed that the total inhibition zone diameter resulted by hibiscus flower extract in five Petri dishes was 23.5 mm with an average of 4.6 mm. In conclusion, hibiscus flower extract had a weak inhibitory effect on the growth of Streptococcus mutans.