CHEMICAL COMPOSITIONS AND ANTIMICROBIAL EFFICACY OF ESSENTIAL OILS FROM CLAUSENA LANSIUM (LOUR.) SKEELS PEELS IN THO XUAN DISTRICT, THANH HOA PROVINCE

Abstract

The study investigated chemical compositions and antimicrobial efficacy of essential oils from peels of Clausena lansium (Lour.) Skeels. Samples were collected in Tho Xuan district, Thanh Hoa province, in July 2023. Analysis using GC and GC-MS methods revealed that fresh peels of Clausena lansium contained 0.04% (w/w) of the essential oils. Twenty-three compounds were identified, representing 99.57% of the total essential oils. The most abundant constituents were β-phellandrene, α-phellandrene, myrcene, and α-pinene. These compounds comprised 73.73%, 7.19%, 2.6%, and 2.31% of total essential oils, respectively. The results of the antimicrobial activity test showed that essential oils from Clausena lansium (Lour.) Skeels peels inhibited the growth of Aspergillus niger fungus with a minimum inhibitory concentration (MIC) value of 256 µg/mL.