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Digitale Medien

Penicillium notatum 1 a new source of dextranase (1994)

Szczodrak, J. ; Pleszczyńska, M. ; Fiedurek, J.

Springer

Journal of industrial microbiology and biotechnology 13 (1994), S. 315-320

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Details

ISSN: 1476-5535

Schlagwort(e): Penicillium notatum 1 ; Dextranase ; Screening ; Mutagenesis

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: Summary Two hundred and fifteen fungal strains were screened for extracellular dextranase production with a diffusion plate method. The best enzymatic activity (12–19 DU ml−1) was achieved byPenicillium notatum 1, a species for which the dextranase productivity has not yet been published. Some of the parameters affecting enzyme production have been standardized. The enzyme in crude state was relatively stable, its maximal activity was at 50°C and at pH 5.0. Conidia of the selected strain were mutagenized, and isolated mutants were tested for production of dextranase in submerged culture. The most active mutant,P. notatum 1-I-77, showed over two-times higher dextranase activity than the parentP. notatum 1

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01569734

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