Strand, Aase ; Shivaji, Sisinthy ; Liaaen-Jensen, SynnØve (1997) Bacterial carotenoids 55. C50-carotenoids 25: revised structures of carotenoids associated with membranes in psychrotrophic Micrococcus roseus Biochemical Systematics and Ecology, 25 (6). pp. 547-552. ISSN 0305-1978
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0305-1978(97)00039-2
Abstract
The carotenoid composition of a psychrotrophic bacterium Micrococcus roseus strain MTCC 678 has been re-examined qualitatively and quantitatively by chromatographic (TLC, HPLC) and spectroscopic (VIS, MS, 1H NMR and CD) methods, partly in direct comparison with authentic carotenoids. The carotenoid content of 0.13% of the dry weight consisted of (2S,2'S)-bactedorubedn (68% of total), bacterioruberin monoglycoside (21%), monoanhydrobacterioruberin (6%), an unidentified polar tridecasne carotenoid (3%), haloxanthin (2%) and β,β-carotene (0.4%): a carotenoid complement associated with that of halophilic bacteria. Rapid analysis demonstrated that bacterioruberin occurred as the all-E isomer (75% of total), together with the 5Z-(5%), 9Z-(5%) and 13Z-(15%) geometrical isomers. The established interaction of the major carotenoid with membrane vesicles, compatible with cold adaptation, is rationalized.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Psychrotrophic Micrococcus roseus; Carotenoid Analysis; C50-carotenoids; Bacterioruberin; Membrane Interaction; Cold Adaptation |
| ID Code: | 64304 |
| Deposited On: | 07 Oct 2011 12:38 |
| Last Modified: | 07 Oct 2011 12:38 |
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