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KMID : 0545120080180010138
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Journal of Microbiology and Biotechnology
2008 Volume.18 No. 1 p.138 ~ p.144
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Statistical Optimization of Growth Medium for the Production of the Entomopathogenic and Phytotoxic Cyclic Depsipeptide Beauvericin from Fusarium oxysporum KFCC 11363P
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Lee Hee-Seok
Song Hyuk-Hwan
Ahn Joong-Hoon
Shin Cha-Gyun
Lee Gung-Pyo
Lee Chan
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Abstract
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The production of the entomopathogenic and phytotoxic cyclic depsipeptide beauvericin (BEA) was studied in submerged cultures of Fusarium oxysporum KFCC 11363P isolated in Korea. The influences of various factors on mycelia growth and BEA production were examined in both complete and chemically defined culture media. The mycelia growth and BEA production were highest in Fusarium defined medium. The optimal carbon and nitrogen sources for maximizing BEA production were glucose and NaNO3, respectively. The carbon/ nitrogen ratio for maximal production of BEA was investigated using response surface methodology (RSM). Equations derived by differentiation of the RSM model revealed that the production of BEA was maximal when using 108 mM glucose and 25 mM NaNO3.
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KEYWORD
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Cyclodepsipeptide, beauvericin, response surface methodology, medium optimization, Fusarium oxysporum
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