Cited by 23Microbial Natural Products and BiosynthesisFluid Dynamics and MixingEnzyme Production and Characterization

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

A study on clavulanic acid production by Streptomyces clavuligerus in batch, fed-batch and continuous processes

Open access
Neto, A. B., Hirata, D. B., Cassiano Filho, L. C. M., Bellão, C., Badino Júnior, A. C., Hokka, C. O.·2005·Brazilian Journal of Chemical Engineering

Abstract

Clavulanic acid (CA) is a potent inhibitor of beta-lactamases, enzymes that are responsible for the hydrolysis of beta-lactam antibiotics. It is a secondary metabolite produced by the filamentous aerobic bacterium Streptomyces clavuligerus in submerged cultivations. In the present work clavulanic acid production in batch, fed-batch and continuous bioreactors was studied with the objective of increasing productivity. The operating conditions: temperature, aeration and agitation, were the same in all cases, 28º C, 0.5 vvm and 800 rpm, respectively. The CA concentration obtained in the fed-batch culture, 404 mg L-1, was ca twice the value obtained in the batch culture, 194 mg L-1, while 293 mg L-1 was obtained in the continuous culture. The highest productivity was obtained in the continuous cultivation, 10.6 mg L-1 h-1, as compared with 8.8 mg L-1 h-1 in the fed-batch process and 3.5 mg L-1 h-1 in the batch process, suggesting that continuous culture of Streptomyces clavuligerus is a promising strategy for clavulanic acid production.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1590/s0104-66322005000400008

Cites

1 of 1 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Flagged first, then by citations

Show all 1 references

Research works printed but not linked: 10

  1. Baggaley, K.H., Brown, A.G. and Schofield, C.J., Chemistry and Biosynthesis of Clavulanic Acid and Another Clavans. Natural Product Report, vol. 57, pp. 309-333, 1997.
  2. Baptista-Neto, A., Gouveia, E.R., Badino-Jr, A.C. and Hokka, C.O., Phenomenological Model of the Clavulanic Acid Production Process Utilizing Streptomyces clavuligerus, Brazilian Journal of Chemical Engineering, vol. 17, n. 04-07, pp.809- 818, 2000.
  3. Battaglia-Hirata, D., Produção de Ácido Clavulânico por Streptomyces clavuligerus e Extração em Sistema de Duas Fases Aquosas, São Carlos-SP, University Federal of São Carlos, (Master's thesis), 2003.
  4. Butterworth, D., Clavulanic acid: Properties Biosynthesis, and Fermentation. In: Vandamme, E.J. Biotechnology of Industrial Antibiotics, New York, Marcel Dekker, vol.22, pp.225-235, 1984.
  5. Demain, A.L, Overproduction of Microbial Metabolites and Enzymes due to Alteration of Regulation, Advances in Biotechnological Engineering, vol. 1, 113 p., (1971)
  6. Foulstone, M. and Reading, C., Assay of Amoxillin and Clavulanic Acid, the Components of Augmentin, in Biological Fluids With HPLC, Ant. Ag. Chem., vol.22, pp.753-762, 1982.
  7. Kirk S, Avignone-Rossa C.A. and Bushell M.E., Growth Limiting Substrate Affects Antibiotic Production and Associated Metabolic Fluxes in Streptomyces clavuligerus, Biotechnology Letters; vol. 22; n. 22, pp. 1803-1809; 2000.
  8. Mayer, A.F. and Deckwer, W.-D. Simultaneous Production and Decomposition of Clavulanic Acid During Streptomyces clavuligerus Cultivations. Appl. Microbiol. Biotechnol., vol.45, pp. 41-46, 1996.
  9. Rosa, J.C., Influência das Condições de Transferência de O2 na Produção de Ácido Clavulânico por Streptomyces clavuligerus, São Carlos-SP, University Federal of São Carlos, (Master's thesis), 2002.
  10. Yegneswaran, P.K., Gray, M.R. and Thompson, B.G., Experimental Simulation of Dissolved Oxigen Flutuations in Large Fermentors: Effect on Streptomyces clavuligerus, Biotech. Bio., vol.38, pp. 1203-1209, 1991.

Cited by

Sorted by citations

See all 23

Metadata

Authors
Neto, A. B., Hirata, D. B., Cassiano Filho, L. C. M., Bellão, C., Badino Júnior, A. C., & Hokka, C. O.
Affiliations
  • Universidade Federal de São Carlos (BR)
  • Federal University of São Carlos, Brazil
Venue
Brazilian Journal of Chemical Engineering
Published
2005-12
Volume
22
Issue
4
Pages
557-563
ISSN
0104-6632 (ISSN-L)
OpenAlex
W2136136263
Cited by
23
References
1
Citations by year
2024: 1 · 2022: 1 · 2021: 3 · 2020: 2 · 2019: 1 · 2018: 1 · 2017: 2 · 2016: 1 · 2014: 1 · 2013: 2 · 2012: 3
FWCI
0.21
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Brazilian Journal of Chemical Engineering (publishedVersion, cc-by-nc)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
  • Americanae (AECID Library) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (99/03279-7)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
Topics
  • Life Sciences › Immunology and Microbiology › Applied Microbiology and Biotechnology › Microbial Natural Products and Biosynthesis
  • Physical Sciences › Chemical Engineering › Fluid Flow and Transfer Processes › Fluid Dynamics and Mixing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Enzyme Production and Characterization
Keywords
clavulanic acid, Streptomyces clavuligerus, secondary metabolite production, continuous fermentation, fed-batch fermentation, batch fermentation, bioprocess productivity, submerged culture, beta-lactamase inhibitors

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review