Effect of pH on the production of the antitumor antibiotic retamycin by Streptomyces olindensis.
Biotechnol Appl Biochem 2005;
40:107-11. [PMID:
15270714 DOI:
10.1042/ba20030166]
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Abstract
The effect of pH on cell growth and retamycin production in batch bioreactor cultures of Streptomyces olindensis ICB20 was investigated. In fermentations pH-controlled over the range 6.0-8.0, the highest retamycin production was achieved at pH 7.0, and the maximum concentration of retamycin, about 1.36 A (absorbance) units, was about 43, 58 and 232% higher than the values obtained at pH 7.5, 6.0 and 8.0 respectively.
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