Essential Oils and Related Products

Extraction techniques for bioactive compounds of cannabis

“…Essential oils are a complex mixture of volatile secondary metabolites that consist of terpenes (monoterpenes, sesquiterpenes and other terpene-like compounds) and nonterpene hydrocarbons and their oxygenated derivatives, such as alcohols, ethers, ketone, aldehydes, esters, phenols, phenol ethers and lactones. 85,86 Generally, terpenes are the major component of essential oils and many of them are responsible for the intense scent, since they can be detected by the sense of smell even at low concentrations. Currently, around 140 terpenes and terpenoids have been identied in Cannabis sativa and their medicinal properties are widely acknowledged (Table 2).…”

“…Essential oils are a complex mixture of volatile secondary metabolites that consist of terpenes (monoterpenes, sesquiterpenes and other terpene-like compounds) and non-terpene hydrocarbons and their oxygenated derivatives, such as alcohols, ethers, ketone, aldehydes, esters, phenols, phenol ethers and lactones. 85,86…”

Uruguayan essential oils. Composition of leaf oil ofMyrcianthes cisplatensis (Camb.) Berg. (?Guayabo colorado?) (Myrtaceae)

“…The leaves were dried by exposure to the air and then extracted by steam distillation for 2 h in a modified Clevenger apparatus. 5 The M. cisplatensis leaf oil was analysed by GC-FID and by GC-MS.…”

Determination of organic acids and carbonyl compounds

“…The booklet by Fritz is especially informative and is recommended for most routine analyses. Guenther and others (9,10,11) Deal and Wyld (5) used alcoholic potassium hydroxide for the titration of weak acids in ethylenediamine and dimethylformamide but used tetrabutylammonium hydroxide in waterisopropanol solution for the titration of very weak acids.…”