[Liposoluble constituents from the flowers of Calotropis gigantea and their antimicrobial activities].

ABSTRACT

OBJECTIVE: To study the liposoluble constituents from the flowers of Calotropis gigantea and their antimicrobial activities. METHODS: The liposoluble constituents from the flowers of Calotropis gigantea were analyzed by GC-MS and their relative contents were determined by area normalization. Their antimicrobial activities against 2 pathogens were tested by agar disc diffusion method. RESULTS: 31 compounds were separated and identified, amounting to 85.14% of the total constituents. The liposoluble constituents from the flowers of Calotropis gigantea exhibited weak antimicrobial activities against Staphylococcus aureus and Canidia albicans. CONCLUSION: The research result provides scientific foundation for exploitation and utilization of Calotropis gigantea.