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)
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.