Vetiver grass

Potential resources of xylans are by-products produced in forestry and the pulp and paper industries (forest chips, wood meal and shavings), where GX and AGX comprise 25-35% of the biomass as well as annual crops (straw, stalks, husk, hulls, bran, etc.), which consist of 25-50% AX, AGX, GAX, and CHX [4]. New results were reported for xylans isolated from flax fiber [16,68], abaca fiber [69], wheat straw [70,71], sugar beet pulp [21,72], sugarcane bagasse [73], rice straw [74], wheat bran [35,75], and jute bast fiber [18]. Recently, about 39% hemicelluloses were extracted from vetiver grasses [76]. 

The oil contains a considerable number of bi- and tricyclic primary, secondary, and tertiary sesquiterpene alcohols called vetiverols or vetivenols [261, 813-817f. These alcohols, as well as their acetates, are valuable fragrance materials. Since several varieties of vetiver grass exist and since fresh as well as air-dried roots are distilled under conditions that vary with the producer, the quality of the commercial oils differs considerably. Oil yields are up to 3%. The main producer is Indonesia (ca. lOOt/yr), followed by Haiti and Reunion. 

Vaseyochloa (Texas grass) Ventenata (North Africa grass) Vetiveria (vetiver grass)... 

Lai HY, Chen ZS. Effects of EDTA on solubility of cadmium, zinc and lead and their uptake by rainbow pink and vetiver grass. Chemosphere 2004 55 (3) 421 30. 

The oil of vetiver with its aromatic to harsh, woody odor, steam-distilled for perfumery from roots of vetiver grass Vetiveria zizanoides (Poaceae) which is grown chiefly in Haiti, India, and Java, contains some prezizaanes and zizaanes such as (+)-prezizaene, (-)-7-prezizaanol, (-l-)-6(13)-zizaene and (-l-)-6(13)-zizaen-12-ol, also known as khusimol. 

Various other reinforcements, such as bamboo fibers, vetiver grass fibers, and coconut fibers [63], are used to manufacture different biodegradable composites. 

Vetiver grass occurs both in the wild state and cultivated, and is much esteemed on account of its roots which are used for many purposes. In the wild state it is distributed all over British India and Ceylon, being chiefly found on the banks of rivers and on rich marshy... 

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