Abstract. LEONEL, M. and CERADA, M.P.. Citric acid production by Aspergillus niger from “manipueira”, a manioc liquid residue. Sci. agric. (Piracicaba, Braz.). Produção de ácido cítrico a partir do cultivo de Aspergillus niger e Trichoderma reesei em bagaço de cana-de-açúcar e fermentação etanólica do extrato. The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of.

Author: Dot Sajas
Country: China
Language: English (Spanish)
Genre: Personal Growth
Published (Last): 4 October 2016
Pages: 37
PDF File Size: 14.69 Mb
ePub File Size: 11.69 Mb
ISBN: 738-1-78058-178-1
Downloads: 7953
Price: Free* [*Free Regsitration Required]
Uploader: Dujinn

Physiological engineering aspects produccion de acido citrico por aspergillus niger Penicillium chrysogenum. For the nigwr of ethylic produccion de acido citrico por aspergillus niger was designed a packed bed bioreactor, which was used for the fermentation of immobilized cells of Saccharomyce Cerevisae, cltrico that produced of ethylic alcohol and were it cultivated in Agar Saboraud produces pellets that were used as catch method in the immobilization; after the alcohol was analyzed by the Dichromate method to identify its alcoholic degree.

Dynamic modeling of the central carbon metabolism of Escherichia coli. Send link to cirico together this produccion de acido citrico por aspergillus niger using Prezi Meeting learn more: Twenty citric acid producing strains of Aspergillus niger were tested regarding their capacity to produce citric acid in various media composition under surface and submerged growth conditions.

Biochemistry of citric acid accumulation by Aspergillus niger.

Analyzing your pitch and process See all. Nutritional requeriment for their growth and acid production varied from strain to strain.

Citric-acid-accumulation tests were applied to the parental fitrico and also to the selected mutants. A microdiffusion method for the determination of nitrogen liberated as ammonia.

Fungi consortium has advantages over the isolated cultures, highlighting the best use of substrates due to enzyme supplementation, especially in terms of hydrolases. Metadata Mostrar registro completo. Send link to edit together this prezi using Prezi Meeting learn more: Comments 0 Please log in to add your comment.

Please log in to add your comment. Miger, as shown in Table 2the 5-FC-resistant mutants presented a higher level of intracellular protein than the parental strain N, while the ammonium ion concentration was always lower than in the parental one.

Mutantes de Aspergillus niger en la produccion de acido citrico [1969]

Neither you, nor the coeditors you shared it with will be able ;or recover it again. Present to your audience Start remote presentation. The resistance to 5-fluorocytosine proved to be a rational approach for isolation of new mutants with improved production of citric acid.

The resultant mycelium was treated as described before 15 and intracellular protein was measured in the pellet kept at o C Send the link below via email or IM. Delete comment or cancel. Services on Demand Article. Microbial metabolism of oxalic acid. After UV mutagenesis 8a conidial suspension was transferred to the isolation medium. Taken together, the results indicate that 5-FC resistance might be a useful criterium for the rational screening of A.

Microbial metabolism of oxalic acid. Aspergillus Website Newsletters Our most recent newsletters since August can be found here. Spanish pdf Article in xml format Article references How to cite this article Automatic translation Po this article by e-mail. June 18, admin 0 Comments. Send the produvcion below via email or IM.

Mutantes de Aspergillus niger en la produccion de acido citrico

Reset share links Resets both viewing and editing links coeditors shown below are not affected. Protein measurement with the Folin phenol reagent. Our most recent newsletters since August can be found here.

Show full item record. Also, the content of nucleic acids in these mutants was two to three times higher relative citriico the parental. How to cite this article.

Services on Demand Article. The sensitive mutants were collected as conidia in the filtrate, which was centrifuged, concentrated and plated. After determining the better nutritional conditions a were monitoring in the time of the process.

This could mean that such mutants have a more efficient metabolism, and therefore grow better than the parental strain under the limiting conditions of citric acid fermentation, what in fact is shown by their increase in biomass production.

In vivo investigations of glucose transport in Saccharomyces cerevisiae. In spite of the large number of producer strains available, it is still important to generate strains with some advantageous characteristics, such as enhanced citric acid production and increased rate of fermentation.

Resumo Solid-state cultivation SSC are characterized by microbial growth on solid supports, often agroindustrial by-products, in conditions of absence of free water. The idea is that mutants having impaired protein synthesis should accumulate large amounts of citric acid and this property has thus been proposed as a new tool for mutant screening Metabolic effects of manganese deficiency in Aspergillus niger: Specific production of 2. SSC of this fungus from sugarcane bagasse resulted in mg L-1 of citric acid content in 4 days without addition of sucrose to the solid medium.

Intrinsic kinetic parameters of the pellet forming fungus Aspergillus awamori.