gas chromatography-mass spectrometry analysis and inhibitory activity against candida albicans atcc 10231 of the leave ethanolic extract from citrus aurantifolia (christm.) swingle

Background: candida albicans is one of the important infectious yeasts that is associated with candidiasis,including oral candidiasis. the extracts of various herbal materials are potential for treating candidiasis.objectives: the objectives of this study were to determine phytochemical constituents of the leaf ethanolic extract of citrus aurantifolia with gas chromatography-mass spectrometry (gc-ms) and to investigate theinhibiting effect of this extract on the planktonic growth of c. albicans.methods: the fresh leaves of c. aurantifolia were macerated overnight with ethanol. the extract wasanalysed with gc-ms. c. albicans atcc 10231 was used in this study. the well-diffusion procedurewas applied to detect the anti-candida activity qualitatively. finally, real-time planktonic growth wasemployed for detecting the anti-candida activity quantitatively.results: gc-ms analysis revealed four dominant components in the ethanolic leaf extract of c. aurantifolia, namely, limonene, geraniol, phytol, and caryophyllene. the extract inhibited the growth of c. albicanseither under the agar diffusion test or real-time planktonic growth. the specific growth rate of c. albicanswas slower in the liquid culture with the extract. the specific growth rates of the 0 (control), 13.3, and26.6 μg/ml were 0.582, 0.384, and 0.272, respectively. eventually, the yields of the treated growth with0 (control), 13.3, and 26.6 μg/ml were od850 of 4.5, 3.0, and 3.7, respectively.conclusion: the leaf ethanolic extract of c. aurantifolia contains bioactive compounds which have anticandidaactivity. thus, it is a good material for new anti-candida ingredients in the future.