Document Detail

Enhancement of citric acid production with ram horn hydrolysate by Aspergillus niger.
MedLine Citation:
PMID:  14643992     Owner:  NLM     Status:  MEDLINE    
The potential use of ram horn hydrolysate (RHH) as a supplement for improvement of citric acid production by Aspergillus niger NRRL 330 was studied. For this purpose, first RHH was produced. Ram horns were hydrolyzed by treating with acid (6 N-H2SO4) and the RHH was obtained. With the addition of RHH to the fermentation medium with a final concentration of 4% (optimal concentration), citric acid value reached a maximum value (94 g/l), which is 52% higher than that of the control experiment. The addition of 4% (v/v) RHH enhanced citric acid accumulation, reduced residual sugar concentration and stimulated mycelial growth. Adding 4% RHH had no adverse effects on A. niger. As a result, RHH was found to be suitable as a valuable supplement for citric acid production in the submerged fermentation.
Esabi Basaran Kurbanoglu
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Bioresource technology     Volume:  92     ISSN:  0960-8524     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2004 Mar 
Date Detail:
Created Date:  2003-12-03     Completed Date:  2004-06-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  97-101     Citation Subset:  IM    
Department of Biology, Science and Letters Faculty, Atatürk University, 25240 Erzurum, Turkey.
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MeSH Terms
Aspergillus niger / metabolism*
Citric Acid / metabolism*
Horns / chemistry*
Protein Hydrolysates / metabolism*
Reg. No./Substance:
0/Protein Hydrolysates; 77-92-9/Citric Acid

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

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