Quelques termes liées à la parfumerie :

Absolute
The absolute oil is obtained from “concretes” or resinoïds. After extraction of these from alcohol ethylic absolute, the alcoholic solutions are freeze between -12° and -15° Celsius, filtrate and after that concentrate under reduce steam. The absolute oil is very precious for the richness that occurs for the compositions in which they are incorporate.

Preservative Agent
Chemical agent sometimes added to a composition to delay the effects of oxidation.

Expression
Technique of extraction of certain essential oil mainly peels of citrus fruits, appealing to mechanical means such as pressure, centrifugation, etc. …

Résinoïde
Coniferous product obtained by the treatment in the volatile solvents from certain natural balms, gums and resin, used generally as element of the thorough note.

Tincture
Cold or warm Dissolution of the soluble parts of a solid body by prolonged contact with a liquid, mostly alcoholic.