Dried and pulverized P. koraiensis leaves were immersed in distilled water and steam distilled using an apparatus with a condenser (Hanil Labtech, Seoul, Korea) for 3 to 4 h at 90°C.
(Color: clear. Constituency: thin. Common method of extraction: steam distilled).
Each specific balm is crafted from a base of certified organic extra virgin olive oil, castor bean oil, and golden yellow beeswax before being infused with pure, steam distilled essential oils, plant extracts, and natural butters.
In shopping for skin care oils one key factor to look at is the method of extraction, with expeller pressed, steam distilled or CO2-extracted oils being preferable to solvent-extracted oils.
The urine samples are acidified with sulfuric acid and steam distilled, giving effective hydrolysis and separation of the phenols.
The plant is often steam distilled, which means the plant's extracts are pulled out through steam, producing a liquid that is mixed with alcohol.
Essential oils vary in quality depending on which parts of the plants are included--lavender oil, for example can be made with lavender flowers and stalks or just with the flowers, the latter being of higher quality--the method of extraction (steam distilled is usually better than water distilled), country or region of origin, and time of harvest.
After digestion, samples were distilled using a steam distillation unit (Büchi Analytical Inc., New Castle, DE, USA) with 30% (w/v) NaOH.
hirtum, Origanum onites L., Origanum dictamnus L., and Satureja thymbra L. (harvests of 2013 2015), that present similar composition of essential oil were distilled in a laboratory-scale steam distiller.
Fresh plant material was placed with 2 liters distilled water in a 5 liter round-bottomed flask, connected to a steam distillation column, and heated using a heating mantle or open charcoal fire.
Physical refining, also known as deacidification by steam distillation, is a process in which free fatty acids and other volatile compounds are distilled off from the oil, using an effective stripping agent (usually steam) and suitable processing conditions.
