Abstract
Effect of soybean oil on mycelial biomass and pleuromutilin biosynthesis by Pleurotus mutilis-04 was investigated in shake flask culture. The maximum pleuromutilin production and mycelial biomass were 8.32 ± 0.02 g l−1 and 49.10 ± 1.00 g l−1 when 20 g l−1 soybean oil was fed at 24 and 96 h respectively. A repeated fed-batch fermentation strategy with feeding 3 g l−1 soybean oil from 96 to 144 h at 24 h intervals was developed successfully to maintain mycelial growth and provide abundant fatty acids for pleuromutilin biosynthesis. Compared with glucose as the sole carbon source, soybean oil was obviously beneficial for the production of pleuromutilin. The results suggested that manipulation of metabolic regulation by soybean oil was an effective way to enhance the production pleuromutilin.
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Acknowledgments
This work was supported by the High-Tech Foundation of Southwest University (XSGX-0610) and Chongqing Key Program of Science and Technology Development (CSTC2009AB1029). We are also grateful to Dr. C. Deng (University of Wollongong, Australia) and Dr. X. Zou (Southwest University, People’s Republic of China) for a critical reading of the manuscript.
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Hu, C., Zou, Y. & Zhao, W. Effect of soybean oil on the production of mycelial biomass and pleuromutilin in the shake-flask culture of Pleurotus mutilis . World J Microbiol Biotechnol 25, 1705–1711 (2009). https://doi.org/10.1007/s11274-009-0064-9
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DOI: https://doi.org/10.1007/s11274-009-0064-9