Document Detail

Enhanced production of high-quality biomass, delta-aminolevulinic acid, bilipigments, and antioxidant capacity of a food alga Nostochopsis lobatus.
MedLine Citation:
PMID:  18340410     Owner:  NLM     Status:  MEDLINE    
The growing interest in natural food has raised the global demand for nutraceuticals. We studied enhanced production of biomass, delta-aminolevulinic acid (delta-ALA), bili pigments and antioxidant capacity of a food alga Nostochopsis lobatus in a full-factorial (three level) design with supplemental Zn, glutamine, and Zn + glutamine in batch culture. Production of biomass, pigments, and antioxidant capacity all were higher under immobilized cell cultures in comparison to free cell cultures. Maximum biomass (2,390 mg dry wt l(-1)), delta-ALA (2.715 microg mg(-1) dry wt h(-1)), phycocyanin (98.50 mg g(-1) dry wt), phycoerythrin (158.0 mg g(-1) dry wt), and antioxidant capacity (140.50 mumoles ascorbic acid equivalent capacity g(-1) fresh wt) were recorded when Zn and glutamine were supplemented together in the growth medium at pH 7.8. These effects were found to be significantly related to the activities of glutamine synthetase (GS(max): 490.2 nmoles mg protein(-1) min(-1)), glutamate synthase (GOGAT(max): 27.0 nmoles mg protein(-1) min(-1)), and glutamate dehydrogenase (GDH(max): 159.9 nmoles mg protein(-1) min(-1)). This study shows that N. lobatus could be a promising bioresource for the production of nutritionally rich biomass, delta-ALA, bili pigments, and antioxidants. Use of immobilized cells in batch culture supplemented with Zn and glutamine could be an effective approach for scaling up production for commercial use.
Usha Pandey; J Pandey
Publication Detail:
Type:  Journal Article     Date:  2008-03-14
Journal Detail:
Title:  Applied biochemistry and biotechnology     Volume:  150     ISSN:  0273-2289     ISO Abbreviation:  Appl. Biochem. Biotechnol.     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-07-17     Completed Date:  2008-08-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8208561     Medline TA:  Appl Biochem Biotechnol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  221-31     Citation Subset:  IM    
Faculty of Science and Technology, M. G. Kashividhyapith, Varanasi 221002, India.
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MeSH Terms
Algae / metabolism,  physiology*
Aminolevulinic Acid / metabolism*
Antioxidants / metabolism*
Reg. No./Substance:
0/Antioxidants; 106-60-5/Aminolevulinic Acid

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