Artemisia genus

An example of the use of gradient techniques is given with plant extracts of the Artemisia genus [3]. In this entry, four related plant extracts were analyzed by isocratic and gradient techniques the authors concluded that the gradient technique offered greater resolution and enabled the separation of more active ingredients in these plant extracts. 

Examples of other antimicrobial essential oils from the Artemisia genus also included the essential oil of Artemisia iwayomogi Kitamura... 

Other species from the Artemisia genus also yielded antimicrobial flavonoids. Flavonoids isolated from the Polish medicinal herbs Artemisia molinieri, Artemisia selengensis Turcz. ex Bess, and Artemisia stolonifera (Maxim.) Kom. showed antifungal activity against some species of phytopathogenic fungi [219]. 

Several species of the genus Artemisia (e. g. A. gmelinii Web. ex Stechm) (Compositae)... 

The genus Artemisia contains more than 200 species that have been reported from many parts of the world and has been selected for remedies by cultures throughout the world because of its medicinal properties. The reported active constituents of the genus include all types of the common natural products of the Asteraceae SQLs, polyacetylenes, flavonoids, essential oils (monoterpenes),... 

A number of papers of chemotaxonomic interest have been published this year. These include a survey of the sesquiterpenoids in elm species, the genus Keruon/u, the genus Amhrosia, and the genus Artemisia. ... 

The Laboratory of Lactones, Coumarins, and Terpenoids (headed by Prof. G.P Sidyakin) studied various plants for lactone content, particularly for the lactones leucomisine and austricine, which were isolated from Artemisia leucodes. Both lactones possess pronounced anti-inflammatory action. As a compound possessing pronounced angio-protective, hypolipidemic, hypo-cholesterolemic, and anti-inflammatory actions, leucomisine has passed medical tests and has been introduced into medical practice under the preparation name Oligvon. Since 1970, systematic studies of chemical compounds found in various species of the genus Ferula, which grows in the territory of Uzbekistan and adjacent republics, have been conducted. As a result, more than 50 species of Ferula have been investigated, from which more than 250 new terpenoids, coumarins, and esters have been isolated and their chemical structures determined. Natural esters of mono- and sesquiterpene alcohols with aromatic acids were discovered for the first time in this lab (Kurmukov and Akhmedkhodzhaeva 1994). 

A number of monoterpenes do not fit the isoprene mle and are called irregular monoterpenes. There are three major stmctural types of irregular monoterpenes the chrysan-themyl (89), artemisyl (90), and santolinyl (91) skeletons (Charlwood and Banthorpe, 1978 Charlwood and Chari-wood, 1991a). These compounds are found primarily in the Asteraceae (they are especially well known from the genus Artemisia), although a few are found in the Apiaceae and Lamiaceae (Poulter, 1990). As two skeletal types often occur in the same plant, it is reasonable to suspect that a common biosynthetic pathway exists and it is possible that the three types arise from a common cationic species (Fig. 19.21). 

Many species of the genus Artemisia (wormwood, Asteraceae) are used as spices, for alcoholic drinks and also in the folk and traditional medicine. The chemical compounds and the antioxidative activity of the EOs isolated from the aerial parts of Artemisia absinthium (vermouth), Artemisia santonicum (sea wormwood), and Artemisia spicigera (sluggish wormwood) were investigated (Kordali et al., 2005). The analysis of the EO of Artemisia santonicum and Artemisia spicigera showed two main components, namely 1,8-cineole and camphor. In addition, it is noticed that the EO of these two species contain no thujone derivates in contrast to Artemisia absinthium. Earlier studies have also shown that 1,8-cineole and camphor are main components of the EO of some Artemisia species. The antioxidative activity of the EO of Artemisia santonicum and... 

Duke, S.O. et al. (1988) Terpenoids from the genus Artemisia as potential pesticides. Amer. Chem. Soc. Symp. Ser. 380, 318-334... 

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