In:
Applied and Environmental Microbiology, American Society for Microbiology, Vol. 53, No. 8 ( 1987-08), p. 1798-1802
Kurzfassung:
The influence of pH on the type and concentration of metabolites produced from pyruvate by Lactobacillus plantarum ATCC 8014 was examined in pH-controlled fermentors at pH values of 4.5 to 6.5. Specific growth rates, cell dry weights, and diacetyl concentrations were highest at pH 5.5, with values of 0.78 h −1 , 190 mg/liter, and 1.2 mM, respectively. While the conversion efficiency (millimoles of acetoin formed per millimoles of pyruvate utilized) was highest (94.6%) at pH 4.5, acetoin levels were similar (20 mM) between pH 4.5 and 5.5. Feeding stationary-phase cells exogenous pyruvate increased acetoin levels to 78 mM.
Materialart:
Online-Ressource
ISSN:
0099-2240
,
1098-5336
DOI:
10.1128/aem.53.8.1798-1802.1987
Sprache:
Englisch
Verlag:
American Society for Microbiology
Publikationsdatum:
1987
ZDB Id:
223011-2
ZDB Id:
1478346-0
SSG:
12
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