Document Detail

Production of lactic acid with loofa sponge immobilized Rhizopus oryzae RBU2-10.
MedLine Citation:
PMID:  16790343     Owner:  NLM     Status:  MEDLINE    
Lactic acid production by Rhizopus oryzae RBU2-10 immobilized in loofa sponge was evaluated. Shape and texture of loofa sponge, which was obtained from the mature dried fruit of Luffa cylindrica, remained intact after its treatment with buffers of varying pH and following its repeated autoclaving for up to four cycles (121 degrees C, 20 min per cycle). The medium having four pieces of loofa sponge (1.008 cm(3)) per 100 ml medium and inoculated with 3 x1 0(6) spores ml(-1) resulted maximum production (80.75 g l(-1)) of lactic acid in 48 h of fermentation. Repeated batch fermentation for lactic acid production could be carried out for 10 cycles. Remarkably higher levels of productivity (1.66-1.84 g l(-1)h(-1)) was obtained during first five cycles of fermentation with a maximum productivity (1.84 g l(-1)h(-1)) obtained during third cycle of fermentation.
Ruma Ganguly; Pallavi Dwivedi; R P Singh
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Publication Detail:
Type:  Journal Article     Date:  2006-06-21
Journal Detail:
Title:  Bioresource technology     Volume:  98     ISSN:  0960-8524     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2006-10-30     Completed Date:  2007-03-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1246-51     Citation Subset:  IM    
Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
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MeSH Terms
Hydrogen-Ion Concentration
Lactic Acid / biosynthesis*
Microscopy, Electron, Scanning
Porifera / microbiology*
Rhizopus / metabolism*
Reg. No./Substance:
50-21-5/Lactic Acid

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