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Electronic Journal of Biotechnology

versión On-line ISSN 0717-3458

Resumen

RODRIGUEZ, Paula; SIERRA, Wilson; RODRIGUEZ, Sonia  y  MENENDEZ, Pilar. Biotransformation of 1,8-cineole, the main product of Eucalyptus oils . Electron. J. Biotechnol. [online]. 2006, vol.9, n.3. ISSN 0717-3458.  http://dx.doi.org/10.4067/S0717-34582006000300011.

The forest industry in Uruguay has grown considerably during the last decade. Eucalyptus plantations account for 74% of the forested land, with Eucalyptus globulus being the most widely distributed species. This industry is dedicated exclusively to the production of wood without exploiting the by-products (leaves and small branches). Eucalyptus leaves are known to contain important amounts of essential oils composed primarily of 1,8-cineole (1,3,3-trymethyl-2-oxabicyclo[2.2.2]octane). In this work, the biotransformation of 1,8-cineole, is achieved using a native bacterium (Rhodococcus sp.) which was isolated from the soil of Eucalyptus forest. A 98% of bioconversion was achieved. Three different optically pure compounds were obtained, and they were identified as 2-endo-hydroxy-1,8-cineole, 2-exo-hydroxy-1,8-cineole and 2-oxo-1,8-cineole.

Palabras clave : Biocatalysis; Monoterpenes; Eucalyptus; Green Chemistry.

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