Dear Kwang

Please kindly see the following pages as they mentioned the same as yours:

1- https://www.researchgate.net/post/How-do-I-separate-essential-oil-and-wax-content-in-agarwood-oil

2- https://www.researchgate.net/post/how_do_i_separate_essential_oil_and_wax_content_in_citrus_peel_oil

3- http://www.oil-testimonials.com/essential-oils/6137/how-to-remove-candle-wax

Hope they would be useful.

Good Luck and best wishes

The commonly used method of separating wax from oil, particularly separating wax from petroleum fractions, is solvent dewaxing, in which the wax-containing oil is chilled in the presence of a selective solvent for the oil and filtered. https://patents.google.com/patent/US3670888A/en

Check http://ask.metafilter.com/101067/How-to-remove-wax-from-plant-material/amp

Hello Prof. Yang,

Check on this

https://www.researchgate.net/post/How_to_remove_wax_from_the_leaves_of_Populus_to_make_stomatal_imprints

Dear Dr Parisa Ziarati, Dr. Chinaza Godswill Awuchi, and Dr. Kiprotich Kiptum

Thank you for your kind suggestions. It really helped! Thank you again!

Hello,

regarding your question you have extracted the lipophilic fraction including the essential oil components. The easiest way to obtain the essential oil of lemongrass is to perform a steam destillation of the raw plant material. The essential oil is collected and you get the total content of essential oil. Afterwards you can use this essential oil for determining single components by applying the GC.

Kind regards and good luck, KPL

Dear Dr. Klaus Peter Latté

Thank you for your advice. So, you are suggesting that steam distillation would reduce the amount of wax being extracted as well?

Dear Dr. Noel W Davies

Thank you for your advice. I will definitely go for steam distillation for essential oil extraction.