Microwave assisted hydro-distillation of essential oils from fresh ginger root (Zingiber officinale Roscoe)

Racoti, Anca; Buttress, A.J.; Binner, Eleanor; Dodds, Chris; Trifan, Adrian; Calinescu, Ioan

doi:10.1080/10412905.2017.1360216

Microwave assisted hydro-distillation of essential oils from fresh ginger root (Zingiber officinale Roscoe)

Racoti, Anca; Buttress, A.J.; Binner, Eleanor; Dodds, Chris; Trifan, Adrian; Calinescu, Ioan

Authors

Anca Racoti

Mr ADAM BUTTRESS ADAM.BUTTRESS@NOTTINGHAM.AC.UK
SENIOR RESEARCH FELLOW

Dr ELEANOR BINNER Eleanor.Binner@nottingham.ac.uk
ASSOCIATE PROFESSOR

Professor CHRIS DODDS CHRIS.DODDS@NOTTINGHAM.AC.UK
PROFESSOR OF PROCESS ENGINEERING

Adrian Trifan

Ioan Calinescu

Abstract

A solvent free in situ microwave hydro-distillation method for extraction of essential oil from fresh ginger root it presented. Extraction was conducted in a TE10n single-mode microwave cavity and variable power 2 kW generator operating at 2.45GHz. The main extracted components identified by gas chromatography (GC) were Zingiberene, α-Curcumene, β-Sesquiphellandrene and α-Selinene. At energy inputs of 0.40 kWh/kg higher powers and shorter exposure times, crucially did not degrade the highly volatile components (α-Pinene and Camphene) despite providing the highest essential oil yields. Optimum processing conditions were found to be 1000W (0.40kWh/kg) for 5 min, for whole ginger root, where 0.35g oil/100g plant was obtained. This was compared to a yield of 0.2g/100g plant in 150 min in using conventional hydro-distillation and 0.3g/100g plant in 90 min using a multi-mode microwave cavity-based hydro-distillation.

Citation

Racoti, A., Buttress, A., Binner, E., Dodds, C., Trifan, A., & Calinescu, I. (2017). Microwave assisted hydro-distillation of essential oils from fresh ginger root (Zingiber officinale Roscoe). Journal of Essential Oil Research, https://doi.org/10.1080/10412905.2017.1360216

Journal Article Type	Article
Acceptance Date	Jul 19, 2017
Publication Date	Aug 17, 2017
Deposit Date	Aug 30, 2017
Publicly Available Date	Aug 18, 2018
Journal	Journal of Essential Oil Research
Print ISSN	1041-2905
Electronic ISSN	2163-8152
Publisher	Taylor and Francis
Peer Reviewed	Peer Reviewed
DOI	https://doi.org/10.1080/10412905.2017.1360216
Keywords	Ginger essential oil, microwave assisted extraction, solvent free, GC
Public URL	https://nottingham-repository.worktribe.com/output/878259
Publisher URL	http://www.tandfonline.com/doi/full/10.1080/10412905.2017.1360216
Contract Date	Aug 30, 2017