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Production of tobacco aroma from lutein. Specific role of the microorganisms involved in the process.

Authors
  • Maldonado-Robledo, G
  • Rodriguez-Bustamante, E
  • Sanchez-Contreras, A
  • Rodriguez-Sanoja, R
  • Sanchez, S
Type
Published Article
Journal
Applied microbiology and biotechnology
Publication Date
Oct 01, 2003
Volume
62
Issue
5-6
Pages
484–488
Identifiers
PMID: 12827317
Source
Medline
License
Unknown

Abstract

A mixed culture formed by Bacillus sp. and Geotrichum sp. produced tobacco aroma compounds from the carotenoid lutein through the formation of the intermediate beta-ionone. Both microorganisms can grow independently in a medium supplemented with lutein, but only Geotrichum produces beta-ionone. This intermediate was incorporated by the bacilli, converted to aroma and this product excreted to the culture medium. Bacillus sp. did not utilize beta-ionone for growth but modified it. We conclude that, in the bioconversion of lutein to products with tobacco aroma, Geotrichum sp. is involved in carotenoid oxidation to produce beta-ionone and Bacillus sp. is responsible for the norisoprenoid reduction to produce 7,8-dihydro-beta-ionone and 7,8-dihydro-beta-ionol.

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