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Abstract:

Various nitrogen and carbon sources were examined as inducers of the production of endoxylanase and β-xylosidase by Trametes trogii. T. trogii grown on xylan plus crystalline cellulose provided supernatants with the highest enzymatic activities. Organic nitrogen sources (especially asparagine and casamino acids) were the best for enzyme production. The increase in xylan concentration stimulated endoxylanase production whereas significant differences were not attained in β-xylosidase production with more than 5 g xylan/l in the culture medium. pH 4.0 was optimal for endoxylanase production, while β-xylosidase production was maximum at pH 5.5. Temperatures in the range of 23-28 °C stimulated enzyme production. The endoxylanase activity in the crude culture filtrate was greatest at 50 °C and pH around 5.0. The optimum pH and temperature for β-xylosidase activity were 5.5 and 50 °C respectively.

Registro:

Documento: Artículo
Título:Influence of growth conditions on the production of xylanolytic enzymes by Trametes trogii
Autor:Levin, L.; Forchiassin, F.
Filiación:Lab. de Micología Exp., Depto. de Ciencias Biológicas, Universidad de Buenos Aires, 1428-Buenos Aires, Argentina
Palabras clave:β-xylosidase; Aphyllophorales; Endoxylanase; Nutrition; asparagine; carbohydrate metabolism; carbon; casamino acid; cellulose; concentration response; endoxylanase; enzyme activity; enzyme synthesis; nitrogen metabolism; pH; xylan 1,4 beta xylosidase; xylan; Trametes trogii
Año:1998
Volumen:14
Número:3
Página de inicio:443
Página de fin:446
DOI: http://dx.doi.org/10.1023/A:1008885800035
Título revista:World Journal of Microbiology and Biotechnology
Título revista abreviado:World J. Microbiol. Biotechnol.
ISSN:09593993
CODEN:WJMBE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09593993_v14_n3_p443_Levin

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Citas:

---------- APA ----------
Levin, L. & Forchiassin, F. (1998) . Influence of growth conditions on the production of xylanolytic enzymes by Trametes trogii. World Journal of Microbiology and Biotechnology, 14(3), 443-446.
http://dx.doi.org/10.1023/A:1008885800035
---------- CHICAGO ----------
Levin, L., Forchiassin, F. "Influence of growth conditions on the production of xylanolytic enzymes by Trametes trogii" . World Journal of Microbiology and Biotechnology 14, no. 3 (1998) : 443-446.
http://dx.doi.org/10.1023/A:1008885800035
---------- MLA ----------
Levin, L., Forchiassin, F. "Influence of growth conditions on the production of xylanolytic enzymes by Trametes trogii" . World Journal of Microbiology and Biotechnology, vol. 14, no. 3, 1998, pp. 443-446.
http://dx.doi.org/10.1023/A:1008885800035
---------- VANCOUVER ----------
Levin, L., Forchiassin, F. Influence of growth conditions on the production of xylanolytic enzymes by Trametes trogii. World J. Microbiol. Biotechnol. 1998;14(3):443-446.
http://dx.doi.org/10.1023/A:1008885800035