Medicinal Plant

2010, v.1(11) 54-56

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Optimization of Volatile Oil Extraction from Asparagus officinalis L. Powder and Its Components Analysis
Optimization of Volatile Oil Extraction from Asparagus officinalis L. Powder and Its Components Analysis

摘要(Abstract):

[Objective] To optimize the technology of extracting volatile oil from powder of Asparagus officinalis L.by using SC-CO2,lay a foundation for further researches and wider application of the powder of Asparagus officinalis L..[Method] With the extraction amount of volatile oil as the evaluation index,an orthogonal test of 4 factors and 3 levels was designed to optimize the extraction technology,and GC-MS was used to analyze the chemical components of extractives.[Result] The optimal conditions of extracting volatile oil from the powder of Asparagus officinalis L.by SC-CO2 were to extract for 2h at 25 MPa,35 ℃ and CO2 flow 20 L/h.The extraction yield of volatile oil from the powder of Asparagus officinalis L.was up to 98%;37 kinds of compounds were included in the extractives,among which alkanes account for the most,then aldehydes and esters.[Conclusion] Under the optimal extraction conditions,the extraction yield of volatile oil from the powder of Asparagus officinalis L.by using SC-CO2 was high.The work lays a solid foundation for the further researches and wider application of the powder of Asparagus officinalis L..

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