Steam distillation is a special type of distillation (a separation process) for temperature sensitive materials like natural aromatic compounds. Many organic compounds tend to decompose at high sustained temperatures. Separation by normal distillation would then not be an option, so water or steam is introduced into the distillation apparatus. The...
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http://en.wikipedia.org/wiki/Steam_distillation
(from the article `distillation`) ...called vacuum distillation, is sometimes employed when dealing with substances that normally boil at inconveniently high temperatures or that ... The first step in the isolation of essential oils is crushing or grinding the plant material to reduce the particle size and to rupture some of the ... ...
Found on
http://www.britannica.com/eb/a-z/s/157
A process in which essential oils are extracted from plant materials using steam and pressure. The volatile oils are separated from the hydrosol after condensation.
Found on
http://www.ccnphawaii.com/glossary-s.htm
No exact match found.
