Abstract
A mutant (GQQ-M6) of a Sponge-Derived streptomyces sp. GQQ-10 obtained by UV-induced mutation was used for producing prodiginines (PGs). Single factor experiments and orthogonal array design (OAD) methods were employed for medium optimization. In the single factor method, the effects of soluble starch, glucose, soybean flour, yeast extract and sodium acetate on PGs production were investigated individually. In the subsequent OAD experiments, the concentrations of these 5 key nutritional components combined with salinity were further adjusted. The mutant strain GQQ-M6 gave a 2.2-fold higher PGs production than that of the parent strain; OAD experiments offered a PGs yield of 61mg L−1, which was 10 times higher than that of the initial GQQ-10 strain under the original cultivation mode.
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Li, X., Zhang, G., Zhu, T. et al. Strain and culture medium optimization for production enhancement of prodiginines from marine-derived Streptomyces sp. GQQ-10. J. Ocean Univ. China 11, 361–365 (2012). https://doi.org/10.1007/s11802-012-1888-8
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DOI: https://doi.org/10.1007/s11802-012-1888-8