Journal
CHEMICAL ENGINEERING & TECHNOLOGY
Volume 35, Issue 9, Pages 1641-1648Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ceat.201100429
Keywords
Box-Behnken design; Lavender; Linalool; Linalyl acetate; Supercritical carbon dioxide; Supercritical fluid extraction
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Funding
- Isfahan University of Technology (IUT)
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Essential oil was extracted from lavender using supercritical carbon dioxide by means of a newly developed periodic static-dynamic (PSD) procedure and the conventional semicontinuous (SC) technique. Applying GC-FID analysis in conjunction with Box-Behnken design, an optimum overall extraction yield (94.4?%) was obtained via PSD in contrast to 90?% for the SC method. The results indicate that supercritical fluid extraction is a viable technique for separation of constituents such as linalyl acetate, linalool, fenchone, and camphor for pharmaceutical and medicinal applications. Furthermore, a substantial reduction of energy consumption and solvent consumption is achieved with the developed PSD process compared to the conventional SC method.
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