Document Detail


Animal Bone Char Solubilization with Itaconic Acid Produced by Free and Immobilized Aspergillus terreus Grown on Glycerol-Based Medium.
MedLine Citation:
PMID:  22956279     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Cells of Aspergillus terreus, free and immobilized in polyurethane foam, were employed in itaconic acid fermentation processes on glycerol-based media. The purpose was to assess their suitability for animal bone char solubilization and the development of a biotechnological alternative to P fertilizers chemically produced from rock phosphate. Animal bones constitute a renewable source of P that can replace the traditionally used finite, nonrenewable rock phosphate as a P source. Glycerol was an excellent substrate for growth (10.2 g biomass L(-1)) and itaconic acid production (26.9 g L(-1)) by free fungal cells after 120-h fermentation. Simultaneously, A. terreus solubilized the insoluble phosphate to a yield of 23 to 50 %, depending on the particle size and concentration. Polyurethane foam cut into cubes of 0.5-0.6 cm per side, with 0.3 mm pore size and applied at 2.0 g L(-1) proved to be an excellent cell carrier. In repeated batch fermentation, the immobilized mycelium showed a high capacity to solubilize animal bone char, which resulted on average in 168.8 mg L(-1) soluble phosphate per 48-h cycle and 59.4 % yield (percent of total phosphate) registered in the fourth batch.
Authors:
Nikolay Vassilev; Almudena Medina; Bettina Eichler-Löbermann; Elena Flor-Peregrín; Maria Vassileva
Related Documents :
8240409 - Inhibition of the human leukocyte endopeptidases elastase and cathepsin g and of porcin...
2408629 - Proteoglycan depletion, rather than fibrillation, determines the effects of salicylate ...
18214109 - Deliquescence behaviour of single levitated ternary salt/carboxylic acid/water microdro...
168569 - Isolation and characterization of collagen-synthesizing polysomes from chick embryos.
6802209 - Proteoglycans and chondroitin sulfates from human multiple chondroma (enchondromatosis).
4815719 - Sulfuric acid-ammonium sulfate aerosol: optical detection in the st. louis region.
10680179 - Antinociceptive substances from incarvillea delavayi.
16091889 - Cultivation of microorganisms in the cultural medium made from squid internal organs an...
11320119 - Insertion of fluorescent fatty acid probes into the outer membranes of the pathogenic s...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-6
Journal Detail:
Title:  Applied biochemistry and biotechnology     Volume:  -     ISSN:  1559-0291     ISO Abbreviation:  Appl. Biochem. Biotechnol.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8208561     Medline TA:  Appl Biochem Biotechnol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Chemical Engineering, Faculty of Sciences, University of Granada, c/Fuentenueva s/n, Granada, 18071, Spain, nbvass@yahoo.com.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Comparative Metabolomic Study of Penicillium chrysogenum During Pilot and Industrial Penicillin Ferm...
Next Document:  Overexpression of a putative Arabidopsis BAHD acyltransferase causes dwarfism that can be rescued by...