Bioactivities Screening and Elucidation of Terpenoid from the Stembark Extracts of Lansium domesticum Corr. cv. Kokosan (Meliaceae)

Lansium domesticum Corr. (L. domesticum), Meliaceae, has an economical fruit found throughout the southeast and has been reported to be used in traditional medicine. Therefore, this study aims to investigate the antimicrobial and cytotoxic potential of four extracts from the stembark of L. domesticum Corr. cv. Kokossan and isolated four terpenoid compounds. Antimicrobial testing was performed on two fungi, namely Malassezia furfur and Candida albicans, and two bacteria, Staphylococcus epidermidis and Klebsiella pneumoniae. Furthermore, antimicrobial activity was determined using the minimum inhibitory concentration (MIC). All isolated extracts were also tested on MCF-7 breast cancer cells. The results showed that butanol and n-hexane extracts have antimicrobial potential against K. pneumoniae bacteria with MIC values of 7.8125 mg/mL and 62.5 mg/mL, respectively, as well as against the dandruff fungus M. furfur. In addition to the antimicrobial results, the anticancer test results also showed that n-hexane has the most interesting cytotoxic value of all extracts, with an IC50 of 42.95 µg/mL than extracts of ethyl acetate, ethanol, and butanol with respective IC50 values of 72.84; 74.50, and 12088.33 µg/mL. The n-hexane and n-butanol extracts have anticancer and antimicrobial potential. These extracts can be studied further for other bioactivity.