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目的:探讨超临界CO2萃取石菖蒲挥发油的方法,选出最佳的提取工艺参数.方法:以石菖蒲挥发油得率为指标,考察了萃取温度、萃取压力、CO2流量、萃取时间4个因素对石菖蒲挥发油超临界CO2萃取的影响.结果:萃取压力30MPa,萃取温度50℃,CO2流量为10kg.h-1的条件下萃取2h为最佳工艺.结论:超临界CO2萃取法提取石菖蒲挥发油得率达4.82%.
OBJECTIVE: To study the extraction method of volatile oil from Acorus calamus by supercritical CO2, and to select the best extraction parameters.METHODS: Taking the yield of volatile oil of Acorus calamus as an index, the effects of extraction temperature, extraction pressure, CO2 flow rate and extraction time on The effect of supercritical CO2 extraction on the volatile oil of Acorus tatarinowii was studied.Result: The optimal extraction conditions were extraction pressure 30MPa, extraction temperature 50 ℃ and CO2 flow rate 10kg.h-1 for 2h.Conclusion: Extraction of volatile oil from Acorus calamus Yield 4.82%.