Partial characterization of enzymatic activities produced by a wild strain of <i>A. niger</i>

Aspergillus niger, isolated from decay citrus peels in the province of Misiones, was able to produce pectinases by submerged fermentation. The enzymatic extract exhibited polygalacturonase, pectinesterase and lyase activities. Others enzymes capable of degrading cell wall polymers were also detected...

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Autores principales: Martos, María Alicia, Baumann, Alicia, Cruz, Mónica Nancy, Hours, Roque Alberto, Garro, Oscar Alfredo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Exactas
Aspergillus niger
Pectinolytic enzymes
Polygalacturonase
Biotecnología
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/96852
https://ri.conicet.gov.ar/11336/82969
https://www.jmbfs.org/jmbfs_0146_martos/?issue_id=1574&article_id=6
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-96852
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Aspergillus niger
Pectinolytic enzymes
Polygalacturonase
Biotecnología
spellingShingle Ciencias Exactas
Aspergillus niger
Pectinolytic enzymes
Polygalacturonase
Biotecnología
Martos, María Alicia
Baumann, Alicia
Cruz, Mónica Nancy
Hours, Roque Alberto
Garro, Oscar Alfredo
Partial characterization of enzymatic activities produced by a wild strain of <i>A. niger</i>
topic_facet Ciencias Exactas
Aspergillus niger
Pectinolytic enzymes
Polygalacturonase
Biotecnología
description Aspergillus niger, isolated from decay citrus peels in the province of Misiones, was able to produce pectinases by submerged fermentation. The enzymatic extract exhibited polygalacturonase, pectinesterase and lyase activities. Others enzymes capable of degrading cell wall polymers were also detected in the enzymatic extract such as cellulases and xylanases. Polygalacturonase was an endo-polygalacturonase. The enzyme exhibited a maximal activity at pH range between 4.5 to 5.0, was stable in the pH range from 2.5 to 5.5 and remained unchanged when was incubated at temperatures lower than 50 ºC. The fungi produced three PG isoenzymes. The enzymatic extract was able to clarify apple juice. The results observed make the pectinolytic enzymes produced by A. niger appropriate for future application in fruit juice processing industries.
format Articulo
Articulo
author Martos, María Alicia
Baumann, Alicia
Cruz, Mónica Nancy
Hours, Roque Alberto
Garro, Oscar Alfredo
author_facet Martos, María Alicia
Baumann, Alicia
Cruz, Mónica Nancy
Hours, Roque Alberto
Garro, Oscar Alfredo
author_sort Martos, María Alicia
title Partial characterization of enzymatic activities produced by a wild strain of <i>A. niger</i>
title_short Partial characterization of enzymatic activities produced by a wild strain of <i>A. niger</i>
title_full Partial characterization of enzymatic activities produced by a wild strain of <i>A. niger</i>
title_fullStr Partial characterization of enzymatic activities produced by a wild strain of <i>A. niger</i>
title_full_unstemmed Partial characterization of enzymatic activities produced by a wild strain of <i>A. niger</i>
title_sort partial characterization of enzymatic activities produced by a wild strain of <i>a. niger</i>
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/96852
https://ri.conicet.gov.ar/11336/82969
https://www.jmbfs.org/jmbfs_0146_martos/?issue_id=1574&article_id=6
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