Ohmic-assisted hydrodistillation of citronella oil from Taiwanese citronella grass: Impacts on the essential oil and extraction medium

Tangerine, banana and pomegranate peels valorisation for sustainable environment: A review

“…Nevertheless, several scientists, such as Gavahian et al [ 203 ], Gavahian et al [ 206 ] and Cook and Lanaras [ 201 ] have shown that traditional extraction and purification methods of essential oil have certain disadvantages, including long extraction time, necessity of large volumes of solvent, low efficiency, low yield, and environmental risks. In the last decade, several scientists have invented new methods for the essential oil extraction to minimise the inconveniences of the traditional methods, among these methods we can mention, the microwave assisted hydrodistillation [ 202 ], the microwave extraction without solvents [ 207 ], the liquid extraction under pressure [ 208 ], the ultrasound-assisted extraction [ 202 ], the assisted ohmic hydrodistillation [ 209 ], the ohmic-accelerated steam distillation [ 210 ], the super and subcritical fluid extraction method [ 211 ] and the supercritical CO 2 extraction method that is a green method for volatile components extraction (essential oil compounds), this method is commonly used for the extraction of volatile components from the biomass peel [ 212 ]. These new methods have several advantages, such as the reduction of extraction time [ 202 , 206 ], the reduction of energy consumption [ 206 ], the reduction of environmental impacts [ 213 ], and also maintains better control of the extraction process [ 214 ].…”

Food texture as affected by ohmic heating: Mechanisms involved, recent findings, benefits, and limitations

“…The authors concluded that process optimization, such as applying an appropriate frequency (10 kHz instead of 50 Hz) and using suitable electrodes can reduce the chemical changes in the ohmic processed product (Wang & Farid, 2015). Gavahian, Lee, and Chu (2018) also raised a concern about the potential negative effects of electrode corrosion on the final product in an ohmic process (Gavahian, Lee, & Chu, 2018).…”

Recent advances in orange oil extraction: an opportunity for the valorisation of orange peel waste a review

“…Although several emerging extraction techniques, including UAE (Pingret et al ., ; Tylewicz et al ., ), MAE (Attard et al ., ; Bustamante et al ., ), SFE (Xhaxhiu & Wenclawiak, ), and EAE (Mishra et al ., ; Sowbhagya & Chitra, ), there still some promising extraction techniques that their applicability to orange waste valorisation need to be investigated in the future. For example, ohmic‐assisted hydrodistillation (OAHD) has been shown to be an energy‐ and time‐saving technique for essential oil extraction (Gavahian & Farahnaky, ; Gavahian et al ., , ) and has been successfully used for extraction of essential oils from several aromatic plants such as Thyme (Gavahian et al ., ; Gavahian et al ., ) and citronella (Gavahian et al ., ), and oregano (Hashemi et al ., ). This extraction technique can directly heat the material, according to Joule law, and result in the quick release of essential oils by the eruption of the essential oil glands (Gavahian & Farahnaky, ; Gavahian et al ., , , ).…”

“…For example, ohmic‐assisted hydrodistillation (OAHD) has been shown to be an energy‐ and time‐saving technique for essential oil extraction (Gavahian & Farahnaky, ; Gavahian et al ., , ) and has been successfully used for extraction of essential oils from several aromatic plants such as Thyme (Gavahian et al ., ; Gavahian et al ., ) and citronella (Gavahian et al ., ), and oregano (Hashemi et al ., ). This extraction technique can directly heat the material, according to Joule law, and result in the quick release of essential oils by the eruption of the essential oil glands (Gavahian & Farahnaky, ; Gavahian et al ., , , ). Moreover, in order to minimise greenhouse gases emissions, which are mainly produced by excessive use of fossil fuels as the energy source, and overcome the resulting environmental challenges, such as global warming, the applicability of green extraction techniques can also be assessed for the valorisation of orange waste.…”