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Digitale Medien

Effect of acetone on production of aflatoxins and versicolorin pigments by resting cell cultures of aspergillus parasiticus (1976)

Bennett, J. W. ; Lee, L. S. ; Gaar, G. G.

Springer

Mycopathologia 58 (1976), S. 9-12

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Details

ISSN: 1573-0832

Schlagwort(e): Aflatoxins ; Versicolorins ; Aspergillus parasiticus

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Medizin

Notizen: Abstract Resting cell cultures of Aspergillus parasiticus were grown in medium containing four different concentrations of glucose, with and without acetone. In addition, the effect of different equimolar concentrations of acetone, acetic acid, ethanol, and sodium acetate was compared at two glucose levels. Aflatoxin and versicolorin pigment production increased in resting cell medium containing increasing concentrations of glucose. In the presence of glucose high concentrations of acetone (1.0 and 0.25 M) inhibited secondary biosynthesis and low concentrations of acetone (0.1, 0.025 and 0.01 M) stimulated secondary biosynthesis of aflatoxins and versicolorin pigments.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00493586

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Digitale Medien

Measurement of structured microbial population dynamics by flow microfluorometry (1978)

Bailey, James E. ; Fazel-Madjlessi, Jila ; McQuitty, Donald N. ; [weitere]

Hoboken, NJ : Wiley-Blackwell

AIChE Journal 24 (1978), S. 570-577

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Details

ISSN: 0001-1541

Schlagwort(e): Chemistry ; Chemical Engineering

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: Commercial microbiological processes frequently contain dispersed microorganisms which are heterogeneous in their age, size, and composition. Relative protein and nucleic acid contents of individual bacteria in Bacillus subtilis submerged cultures have been measured experimentally using laser flow microfluorometry. Marginal and joint population composition density data and their complex patterns of evolution during batch growth provide an impetus and emerging basis for a new generation of potentially robust mathematical models of microbial systems.

Zusätzliches Material: 9 Ill.