Characterization of antioxidant-producing Alteromonas macleodii HJ-14 isolated from seawater

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Title
Characterization of antioxidant-producing Alteromonas macleodii HJ-14 isolated from seawater
Author(s)
S H Yeo; H J Kim; Jung-Hoon Yoon; H S Kim; Y I Hwang; S C Lee
Bibliographic Citation
Journal of Microbiology and Biotechnology, vol. 16, no. 5, pp. 731-739
Publication Year
2006
Abstract
A bacterial strain HJ-14 was isolated as a produce of antioxidants from the coast of Jinhae in Korea. The isolate showed 43.4 mol% of G+C content, and contained dihydrogenated ubiquinone with Q8 as a major quinone. Chemotaxonomic analysis as well as phylogenetic analysis, based on the 16S rDNA sequence, identified the isolate as a member of Alteromonas macleodii. For antioxidant production, the optimum medium composition was determined to be 3% dextrin, 0.5% ammonium sulfate, and 2-6% sodium chloride. Optimum culture conditions for production of antioxidant materials with strain HJ-14 were at pH 6.0-8.0 and 25-37°C. The chloroform extract of strain HJ-14 broth showed 1.96-17.5-fold higher antioxidant activity than other organic solvents in term of electron donating ability.
Keyword
16S rDNA sequencealteromonas macleodii HJ-14antioxidantphylogeny
ISSN
1017-7825
Publisher
Korea Soc-Assoc-Inst
Type
Article
Appears in Collections:
1. Journal Articles > Journal Articles
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