Effects of high intensity pulsed electric fields on yield and chemical composition of rose essential oil

High intensity pulsed electric fields (PEF) combined with distillation was used to extract essential oil from rose. Three main parameters, namely electric field intensity, pulse number and distillation times, which can affect the efficiency of extraction, were optimized. Then, in order to demonstrat...

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Bibliographic Details
Published in:International journal of agricultural and biological engineering 2017-05, Vol.10 (3), p.295
Main Authors: Yajun, Zhou, Changmei, Xue, Susu, Zhang, Guangming, Yao, Ling, Zhang, Shujie, Wang
Format: Article
Language:English
Subjects:
Aromatherapy
Chemical composition
Distillation
Electric fields
Essential oils
Eugenol
Extraction
Feasibility studies
Flow velocity
Food
Methyl eugenol
Oils & fats
Petroleum production
Quality
Solvent extraction processes
Vacuum distillation
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Summary:High intensity pulsed electric fields (PEF) combined with distillation was used to extract essential oil from rose. Three main parameters, namely electric field intensity, pulse number and distillation times, which can affect the efficiency of extraction, were optimized. Then, in order to demonstrate the feasibility of the method, oil obtained under optimal conditions was compared quantitatively and qualitatively with that obtained by conventional hydro distillation. Considering the extraction yield, the optimal parameters combination was obtained with electric field intensity of 20 kV/cm, pulse number of 8 and distillation time of 2 h. PEF treatment had no significant influence on the quality of essential oils. However, there was an increase in methyl eugenol percentage, which is a disadvantage from qualitative point of view.
ISSN:1934-6344
1934-6352
DOI:10.3965/j.ijabe.20171003.3153