Cited by 26Microbial Natural Products and BiosynthesisMicrobial Metabolic Engineering and BioproductionEnzyme Production and Characterization

A statistical approach using L25 orthogonal array method to study fermentative production of clavulanic acid by Streptomyces clavuligerus MTCC 1142

Saudagar, Parag S., Singhal, Rekha S.·2007·Applied Biochemistry and Biotechnology

Abstract

Clavulanic acid is a naturally occurring antibiotic produced by Streptomyces clavuligerus. The present work reports on clavulanic acid production by Streptomyces clavuligerus MTCC 1142 using one-factor-at-a-time and L(25) orthogonal array. The one-factor-at-a-time method was adopted to investigate the effect of media components (i.e., carbon source, nitrogen source and inoculum concentration) and environmental factors such as pH for clavulanic acid production. Production of clavulanic acid by Streptomyces clavuligerus was investigated using seven different carbon sources (viz. glucose, sucrose, modified starch, rice-bran oil, soybean oil, palm oil, and glycerol) and six different nitrogen sources (viz. peptone, yeast extract, ammonium chloride, ammonium carbonate, sodium nitrate and potassium nitrate). A maximum yield of 140 microg/mL clavulanic acid was obtained in the medium containing soybean oil as a carbon source and yeast extract as nitrogen source. Subsequently, the concentration of soybean flour, soybean oil, dextrin, yeast extract and K2HPO4 were optimized using L25 orthogonal array method. The final optimized medium produced 500 microg/mL clavulanic acid at the end of 96 h as compared to 140 microg/mL before optimization. Synthesis of precursor molecules as a metabolic driving force is of considerable importance in antibiotic synthesis. Attempts to increase the clavulanic acid synthesis by manipulating the anaplerotic flux on C(3) and C(5) precursors by supplementin…

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Authors
Saudagar, P. S., & Singhal, R. S.
Affiliations
Institute of Chemical Technology (IN)
Corresponding author
Singhal, Rekha S.
Venue
Applied Biochemistry and Biotechnology
Published
2007-03
Volume
136
Issue
3
Pages
345-359
ISSN
  • 0273-2289 (ISSN-L)
  • 1559-0291
OpenAlex
W2041528665
Cited by
26
References
23
Citations by year
2026: 2 · 2024: 1 · 2022: 2 · 2019: 1 · 2018: 1 · 2016: 1 · 2015: 3 · 2014: 3 · 2013: 2 · 2012: 3
FWCI
1.11
Type
journal article
Language
en
Open access
closed
Locations
  • Applied Biochemistry and Biotechnology (publishedVersion)
  • PubMed (publishedVersion)
Funders
University Grants Commission
Topics
  • Health Sciences › Medicine › Pharmacology › Microbial Natural Products and Biosynthesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Enzyme Production and Characterization
Keywords
clavulanic acid, Streptomyces clavuligerus, fermentation production, culture medium optimization, carbon source, nitrogen source, inoculum size, pH optimization, arginine supplementation, leucine supplementation, antibiotic production
MeSH terms
Amino Acids, Anti-Bacterial Agents, Biotechnology, Carbon, Culture Media, Fermentation, Hydrogen-Ion Concentration, Nitrogen, Soybean Oil, Streptomyces, Clavulanic Acid

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