Affiliation:
1. Department of Biology, University of Dayton, Dayton, Ohio
2. Department of Biological Sciences, Loyola University, New Orleans, Louisiana
Abstract
Cooney
, J. J. (University of Dayton, Dayton, Ohio), H. W.
Marks, Jr., and Anne M. Smith
. Isolation and identification of canthaxanthin from
Micrococcus roseus
. J. Bacteriol.
92:
342–345. 1966.—The principal colored carotenoid of
Micrococcus roseus
was purified by solvent partitioning followed by column and thin-layer chromatography. Absorption spectra, partition coefficients, and infrared spectra suggested that the pigment was a diketo derivative of β-carotene. The pigment was subjected to reduction, and the reduced pigment was subsequently dehydrated. Spectral data and partition coefficients of these derivatives indicated that the original pigment was canthaxanthin (4′,4′-diketo-β-carotene). The pigment was an all-
trans
isomer; it does not exist as an ester in
M. roseus
. Canthaxanthin has not previously been identified as a bacterial pigment.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
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