JOINT EFFECT OF NITROGEN AND PHOSPHORUS CONCENTRATIONS ON CITRIC-ACIDPRODUCTION BY DIFFERENT STRAINS OF ASPERGILLUS-NIGER GROWN ON AN EFFLUENT

Authors
PINTADO J MURADO MA GONZALEZ P MIRON J PASTRANA L
Citation
J. Pintado et al., JOINT EFFECT OF NITROGEN AND PHOSPHORUS CONCENTRATIONS ON CITRIC-ACIDPRODUCTION BY DIFFERENT STRAINS OF ASPERGILLUS-NIGER GROWN ON AN EFFLUENT, Biotechnology letters, 15(11), 1993, pp. 1157-1162
Citations number
14
Categorie Soggetti
Biothechnology & Applied Migrobiology
Journal title
Biotechnology letters → ACNP
ISSN journal
01415492
Volume
15
Issue
11
Year of publication
1993
Pages
1157 - 1162
Database
ISI
SICI code
0141-5492(1993)15:11<1157:JEONAP>2.0.ZU;2-F
Abstract
The joint effects of the initial concentration of N and P on the produ ction of citric acid by 11 strains of Aspergillus niger on an effluent are studied by means of orthogonal full-factorial 2(2) designs. The r esults allow the definition of a series of empirical equations describ ing well differentiated types of behaviour. This demonstrates the usef ulness of the procedure followed in order to establish selection crite ria for the more suitable strains, to determine the tendencies that pe rmit approaching optimum production and evaluate the viability of diff erent culture options characterized by discontinuous feeding of one or another nutrient.