Novel microorganism and method for producing carotenoid...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 1/20 (2006.01) C12N 1/21 (2006.01) C12P 23/00 (2006.01)

Patent

CA 2630780

It is intended to provide a bacterium selectively synthesizing canthaxanthin from which canthaxanthin, which is a carotenoid, can be simply extracted and purified and a method for producing canthaxanthin by a culture method. A carotenoid-producing bacterium belonging to the genus Paracoccus which selectively produces canthaxanthin which accounts for 90% by weight or more of the total amount of produced carotenoids which include .beta.-carotene, .beta.- cryptoxanthin, echinenone, canthaxanthin, 3-hydroxyechinenone, 3~- hydroxyechinenone, zeaxanthin, phoenicoxanthin, adonixanthin and astaxanthin, and a method for producing canthaxanthin in which a cultivation is carried out using the bacterium and the carotenoids are collected from the bacterial cell or the culture solution after the cultivation.

L~invention permet de produire une bactérie synthétisant sélectivement la canthaxanthine à partir de laquelle cette dernière, un caroténoïde, peut être extraite simplement et purifiée, ainsi qu~un procédé de production de canthaxanthine par mise en culture. L~invention a pour objet une bactérie productrice de caroténoïde du genre Paracoccus produisant sélectivement de la canthaxanthine, qui représente 90 % en poids ou plus des caroténoïdes totaux produits comprenant le .beta.-carotène, la .beta.-cryptoxanthine, l~echinénone, la canthaxanthine, la 3-hydroxyechinénone, la 3~-hydroxyechinénone, la zéaxanthine, la phoénicoxanthine, l~adonixanthine et l~astaxanthine, ainsi qu~un procédé de production de canthaxanthine au cours duquel une culture est réalisée au moyen de la bactérie et les caroténoïdes sont ensuite prélevés de la cellule bactérienne ou de la solution de culture.

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