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By Colin W. Wright

A entire evaluate of this genus, Artemisia examines all elements of the herbs makes use of and purposes, its mode of motion and medical significance. Following a finished creation to the genus, the publication discusses the botanical, phytochemical and organic features of a couple of very important species of Artemisis. considering the invention of artemisinin, a hugely energetic antimalarial agent from the chinese language herb A. annua is of substantial significance, this quantity devotes numerous chapters to the normal makes use of, cultivation and phytochemistry of this species and to the advance of artemisinin-derived antimalarial brokers, their mode of motion and scientific use.

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Many other terpk&ids have been studied in the genus Artemisia. Considering the sesquiterpenes, the aerial parts of A. , 1991), whereas two new diasteromeric homoditerpene peroxides were isolated from A. , 1992). , 1995), tricyclic sesquiterpenes have been separated from the aerial parts of A. , 1996). Table 4 Percentage essential-oil composition (monoterpenes, sesquiterpenes, and phenols). From some Artemisia species growing spontaneously in North-West Italy. Artemisia species * Compounds Monoterpenes (%) Hydrocarbons a-Pinene a-Thujene a-Fenchene Camphene P-Pinene Sabinene a-Terpinene Lim on ene y-Terpinene p-Cymene Alcohols p-Sabinene hydrate Yomogi alcohol cis-Thuj-2-en-4-01 Linalool Terpinen-4-01 Pinocarveol trans-Verbenol a-Terpineol Borneo1 Myrtenol Esters trans-Chrysanthenyl ac.

The chemical composition of Artemisia oils has been investigated in many other species for chemotaxonomic reasons. However, the continuous search for new active andfor flavouring molecules is the driving force for the improvement and development of extracting and purifying techniques. Camphor, 1,8-cineole, camphene, terpinen-4-01 and a-terpineol are the main oil components of A. , 1993), A. hololeuca, A. gelinii and A. , 1987), whereas artemisia ketone made up 94% of the total oil of A. , 1987).

An endemic western-southern Turan desert species, which is distributed both on loamy and sandy soils which are coarse textured and salty to various extents. Five species were found to be endemic to the Turan area. In contrast, some Artemisia species have a narrow ecological range: A. camelorum Krasch. and A. pauciflora Weber are halophytes (adapted to salty conditions), A. lessingiana Besser is a petrophyte (rock-growing) and A. santolina Schrenck is a psammophyte, typically found growing in the drift and hilly sands of central and southern deserts (Safronova 1996 and references therein).

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