Your browser doesn't support javascript.
loading
Constitutive and inducible pectinolytic enzymes from Aspergillus flavipes FP-500 and their modulation by pH and carbon source.
Martínez-Trujillo, Aurora; Aranda, Juan S; Gómez-Sánchez, Carlos; Trejo-Aguilar, Blanca; Aguilar-Osorio, Guillermo.
Affiliation
  • Martínez-Trujillo A; Laboratory of Enzymatic Catalysis, Technologic Institute for Higher Studies of Ecatepec , Ecatepec , Estado de Mexico ; Department of Bioengineering, Professional Unit of Biotechnology, National Polytechnic Institute of Mexico, UPIBI-IPN, Col. La Laguna Ticoman, D.F. , Mexico.
Braz J Microbiol ; 40(1): 40-7, 2009 Jan.
Article in En | MEDLINE | ID: mdl-24031315
Growth and enzymes production by Aspergillus flavipes FP-500 were evaluated on pectin, polygalacturonic acid, galacturonic acid, arabinose, rhamnose, xylose, glycerol and glucose at different initial pH values. We found that the strain produced exopectinases, endopectinases and pectin lyases. Exopectinases and pectin lyase were found to be produced at basal levels as constitutive enzymes and their production was modulated by the available carbon source and pH of culture medium and stimulated by the presence of inducer in the culture medium. Endo-pectinase was basically inducible and was only produced when pectin was used as carbon source. Our results suggest that pectinases in A. flavipes FP-500 are produced in a concerted way. The first enzyme to be produced was exopectinase followed by Pectin Lyase and Endo-pectinase.
Key words

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Braz J Microbiol Year: 2009 Document type: Article Affiliation country: Mexico Country of publication: Brazil

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Braz J Microbiol Year: 2009 Document type: Article Affiliation country: Mexico Country of publication: Brazil