Response Surface Optimization of Ultrasonic-Assisted Extraction and Fatty Acid Composition Analysis of

Abstract

Abstract: Response surface methodology (RSM) was employed to optimize the ultrasound-assisted extraction of essential oil from Sloanea hemsleyana seeds. Meanwhile, the chemical composition of the extracted essential oil was analyzed by GC-MS. The results showed that the optimal extraction conditions were cyclohexane as the best extraction solvent, single ultrasonic treatment for 3 s at a power level of 540 W followed by a 1-s interval, 18 min of total extraction time, and 1:8.6 of solid-to-liquid ratio, resulting in an oil yield of 94.53%. The essential oil obtained under these conditions was abundant in unsaturated fatty acids with a total content of 70.13%. The contents of oleic acid and linoleic acid were 53.95% and 16.18%, respectively.

Key words: Sloanea hemsleyana seed oil, ultrasonic-assisted extraction, response surface analysis, GC-MS；fatty acid composition

References

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