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KMID : 0613820080180121752
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Journal of Life Science
2008 Volume.18 No. 12 p.1752 ~ p.1757
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Characterization of Pigment-Producing Pseudoalteromonas spp. from Marine Habitats and Their Optimal Conditions for Pigment Production
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Jeong Dong-Woo
Park Jin-Sook
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Abstract
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Three marine bacteria producing pigments were isolated from seawater of Jeju-Do and local solar saltern in Korea. Based on phenotypic characteristics and 16S rRNA sequence analysis, the strains were identified as Pseudoalteromonas spp., which produced red (Ju11-1), yellow (Ju14), and orange (TA20) pigments. The pigments showed UV absorption maxima at 537, 378 and 387 nm, respectively. The strains were growing well on Marine broth 2216 culture medium. The productivity of pigments reached the maximum value after 28 hours (Ju11-1, Ju14) and 24 hours (TA20) at 30℃, 2% NaCl and pH 6-7. The best pigment production of strains were supported by 1% of lactose (Ju11-1) and maltose (Ju14, TA20) as a carbon source and 1% of beef extract as a nitrogen source.
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KEYWORD
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Pseudoalteromonas, bacterial pigment, marine bacteria
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