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| Analysis of fatty acids from Hibiscus sabdariffa L. calyx by GC-MS |
| （1.School of Pharmacy， 2.School of Food and Biological Engineering， 3.School of Chemistry and Chemical Engineering， Jiangsu University， Zhenjiang Jiangsu 212013， China） |
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Abstract Objective: To analyze the fatty acids from Hibiscus sabdariffa L. calyx by gas chromatography-mass spectrometry（GC-MS）. Methods: To extract oil from Hibiscus sabdariffa L. calyx by soxhlet extraction method. After methyl esterification，the oil was analyzed by GC-MS. Results: The oil from Hibiscus sabdariffa L. calyx was composed of seventeen fatty acids. The main fatty acids of the oil were linoleic acid （45.03%），oleic acid（23.62%），palmitic acid（22.91%），stearic acid（3.41%），（10 E）-10-nonadecenoic acid（1.91%），palmitoleic acid（0.84%），eicosanoic acid（0.53%）and myristic acid （0.34%），respectively. The content of unsaturated fatty acids was up to 71.40%. Conclusion: Unsaturated fatty acids，rich in Hibiscus sabdariffa L. oil，are of high nutrition for human health.
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2012, Vol. 22 
