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[Chemical constituents and bioactivity of Kalimeris indica]
Wenqing Xu1, Xiaojian Gong, Xin Zhou
1The Research Center for Quality Control of Natural Medicine, Guiyang 550001, China.
Objective:
To study the constituents of Kalimeris indica and its bioactivity.
Method:
The constituents were isolated by various chromatographic techniques and their structures were elucidated by their physicochemical properties and the spectral data analysis. Use the disk diffusion method, see whether a sample can produce inhibition zone and its round size, semi-quantitatively evaluate the samples antimicrobial activity.
Result:
Eight compounds were isolated and identified as succinic acid (1), glycerolmonopalmitate (2), protocatechuic acid (3), uracil (4), syringic acid (5), protocatechuic acid methyl ester (6), esculetin (7), medicagenic acid (8). The result of activity screening indicate that succinic and syringic acid have bacteriostasis to bacillus subtilis.
Conclusion:
All Compounds were isolated from the genus Kalimeris for the first time, succinic acid (1) and syringic acid (5) have bacteriostasis to bacillus subtilis.