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Optimization of a chemically defined, minimal medium for Clostridium thermosaccharolyticum

Baskaran, S. (Dartmouth College, Hanover, NH.) ; Hogsett, D.A.L ; Lynd, L.R

Applied biochemistry and biotechnology, 1995-09, Vol.51 [Periódico revisado por pares]

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Título:
Optimization of a chemically defined, minimal medium for Clostridium thermosaccharolyticum
Autor: Baskaran, S. (Dartmouth College, Hanover, NH.) ; Hogsett, D.A.L ; Lynd, L.R
Assuntos: CLOSTRIDIUM ; ETANOL ; ETHANOL ; FERMENTACION ; FERMENTATION ; MEDIO DE CULTIVO ; MILIEU DE CULTURE ; PRODUCCION ; PRODUCTION
É parte de: Applied biochemistry and biotechnology, 1995-09, Vol.51
Notas: 9603466
P06
Descrição: This article presents results from a systematic study aimed at formulating a defined, minimal medium for the growth of Clostridium thermosaccharolyticum in batch and in continuous culture. At least one vitamin appears to be essential, and there is no demonstrable requirement for trace minerals. The defined medium is shown to support growth on high substrate concentrations with scaled nutrient levels and is expected to permit complete utilization when nutrient limitation(s) are overcome. The observed elemental requirements are compared with cell mass fraction measurements and with a typical cell composition. The maximum growth rate for batch growth of C. thermosaccharolyticum on the minimal medium is 0.27 h-1 as compared with values of approximately 0.4 h-1 typically reported for growth on complex media. However, exponential growth terminates at an optical density of about 0.22 corresponding to about 40% of the final value attained. Greater understanding of nutrient requirements and interactions is needed to address this issue
Idioma: Inglês

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