Document Detail

Improving Spirulina platensis biomass yield using a fed-batch process.
MedLine Citation:
PMID:  14766156     Owner:  NLM     Status:  MEDLINE    
Increasing interest is being shown in the cyanobacterium Spirulina platensis because of its nutritional properties when used as food supplement and possible therapeutic effects. One of the most important areas being studied is the development of alternative nutrient sources which can be used to decrease the production costs of commercially produced S. platensis and obtain high productivity. Water from Mangueira Lagoon (Rio Grande do Sul State, Brazil) has high levels of carbonates and a high pH and has the potential to be used as a culture medium for S. platensis, although some nutrient supplementation may be required. We tested the effect of unsupplemented Mangueira Lagoon water (MLW) or MLW supplemented with 1.125 or 2.250 mg/l of urea and/or 21 or 42 mg/l of sodium bicarbonate on the growth of S. platensis in fed-batch culture using a 3(2) factorial design and found that there the addition of 1.125 mg/l of urea resulted in a 2.67 fold increase times in the final biomass concentration of S. platensis.
Jorge Alberto Vieira Costa; Luciane Maria Colla; Paulo Fernando Duarte Filho
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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 May 
Date Detail:
Created Date:  2004-02-09     Completed Date:  2004-05-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  237-41     Citation Subset:  IM    
Laboratory of Biochemical Engineering, Department of Chemistry, Federal University Foundation of Rio Grande, P.O. Box 474, Rio Grande-RS, 96201-900, Brazil.
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MeSH Terms
Bacterial Proteins / biosynthesis*
Culture Media / metabolism
Cyanobacteria / growth & development*,  metabolism
Fresh Water / analysis*
Hydrogen-Ion Concentration
Sodium Bicarbonate
Reg. No./Substance:
0/Bacterial Proteins; 0/Culture Media; 144-55-8/Sodium Bicarbonate; 57-13-6/Urea

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

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