Ethanol stimulates the flocculation of Zymomonas mobilis

When flocculating cells of Zymomonas mobilis were put in contact with increasing concentrations of ethanol, flocculation was intensified. The settling velocity increased 5.3-fold when the ethanol concentration rose from 0 to 12% v/v. Additionally, the percentage of free-cells diminished considerably...

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Veröffentlicht in:	Biotechnology letters 1997-06, Vol.19 (6), p.499-501
Hauptverfasser:	PALHA, M. A. P. F, LOPES, C. E, PEREIRA, N. JR
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences Biology of microorganisms of confirmed or potential industrial interest Biotechnology Ethanol Flocculation Fundamental and applied biological sciences. Psychology Miscellaneous Mission oriented research Settling velocity Zymomonas mobilis
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Zusammenfassung:	When flocculating cells of Zymomonas mobilis were put in contact with increasing concentrations of ethanol, flocculation was intensified. The settling velocity increased 5.3-fold when the ethanol concentration rose from 0 to 12% v/v. Additionally, the percentage of free-cells diminished considerably (from 33 to 10%), denoting an increase on the extent of flocculation. The stress provoked by ethanol possibly leads to the activation of genes responsible for aggregation.[PUBLICATION ABSTRACT]
ISSN:	0141-5492 1573-6776
DOI:	10.1023/A:1018368832508