Summary
Oxygen was essential for the biosynthesis of pullulan by Aureobasidium pullulans. In a growth medium, pullulan yield and synthesis rate were proportional to the oxygen availability. However, under controlled oxygen environment in a non-growth medium, the synthesis rate and the yield of pullulan were inversely proportional to the oxygen tension. A relationship between melanin production and oxygen transfer conditions was also observed. The elapsed time prior to the appearance of the pigment was dependent upon the degree of oxygen availability.
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Rho, D., Mulchandani, A., Luong, J.H.T. et al. Oxygen requirement in pullulan fermentation. Appl Microbiol Biotechnol 28, 361–366 (1988). https://doi.org/10.1007/BF00268196
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DOI: https://doi.org/10.1007/BF00268196