Production of Calcaride A by Calcarisporium sp. in Shaken Flasks and Stirred Bioreactors

Autor: Anu Tamminen, Yanming Wang, Marilyn G. Wiebe
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Marine Drugs, Vol 13, Iss 7, Pp 3992-4005 (2015)
Druh dokumentu: article
ISSN: 1660-3397
DOI: 10.3390/md13073992
Popis: Increased interest in marine resources has led to increased screening of marine fungi for novel bioactive compounds and considerable effort is being invested in discovering these metabolites. For compound discovery, small-scale cultures are adequate, but agitated bioreactors are desirable for larger-scale production. Calcarisporium sp. KF525 has recently been described to produce calcaride A, a cyclic polyester with antibiotic activity, in agitated flasks. Here, we describe improvements in the production of calcaride A in both flasks (13-fold improvement) and stirred bioreactors (200-fold improvement). Production of calcaride A in bioreactors was initially substantially lower than in shaken flasks. The cultivation pH (reduced from 6.8 to
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