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Metabolic Flux Analysis of Beijerinckia indica for PS-7 Production 원문보기

Biotechnology and bioprocess engineering : Bbe, v.10 no.1, 2005년, pp.91 - 98  

Wu Jian-Rong (Department of Biotechnology and Bioengineering, Pukyong National University) ,  Son Jeong Hwa (Department of Biotechnology and Bioengineering, Pukyong National University) ,  Seo Hyo-Jin (Interdisciplinary Program of Marine Biotechnology, Pukyong National University) ,  Kim Ki-Hong (Aquatic Life of Medicine, Pukyong National University) ,  Nam Yoon-Kwon (Aquaculture, Pukyong National University) ,  Lee Jin-Woo (Division of Biotechnology, Dong-A University) ,  Kim Sung-Koo (Department of Biotechnology and Bioengineering, Pukyong National University)

Abstract AI-Helper 아이콘AI-Helper

In order to investigate central metabolic changes in Beijerinckia indica, cells were grown on different carbon sources and intracellular flux distributions were studied under varying concentrations of nitrogen. Metabolic fluxes were estimated by combining material balances with extracellular substra...

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제안 방법

  • In this paper, Beijerinckia indica was cultivated in media with different carbon sources and a high or low nitrogen content for EPS fermentation. Metabolic flux was calculated to investigate the flux distribution in the central metabolism of the strain and metabolic changes under different nitrogen conditions. The Pentose Phospate pathway (PP), the semi- Embden-Meyerhof-Parnas (EMP) pathway, the Entner Doudoroff (ED) pathways, the Tricarboxylic acid (TCA) cycle, and EPS synthesis were used in the proposed metabolic network for metabolic flux analysis.

이론/모형

  • The residual glucose concentration was determined by the phenol sulfuric acid method [9]. The ammonia was determined spectrophotometrically by the indophenol blue method 이. The nitrate was determined spectrophotometrically by the method by Cataldo et al.
  • To determine biomass, culture broths were centrifuged, the resultant pellet was washed with distilled water, and dry cell weight was measured after drying at 105℃. The residual glucose concentration was determined by the phenol sulfuric acid method [9]. The ammonia was determined spectrophotometrically by the indophenol blue method 이.
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참고문헌 (25)

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  2. Lee, J. W., W. G. Yeomans, A. L. Allen, R. A. Gross, and D. L. Kaplan (1997) Compositional consistency of a heteropolysaccharide- 7 produced by Beijerinckia indica. Biotechnol. Lett. 19: 803-807 

  3. Thorne, L., M. J. Mikolajczak, R. W. Armentrout, and T. J. Pollock (2000) Increasing the yield and viscosity of exopolysaccharide secreted by Sphingomonas by augmentation of chromosomal genes with multiple copies of cloned biosynthetic genes. J. Ind. Microbiol. Biotechnol. 25: 49-57 

  4. Gulin, S., A. Kussak, P. E. Jansson, and G. Widmalm (2001) Structural studies of S-7, another exocellular polysaccharide containing 2-deoxy-arabino-hexuronic acid. Carbohyd. Res. 311: 285-290 

  5. Standford, P. A. and J. Baird (1983) Industrial Utilization of Polysaccharide: In Polysaccharide II. Academic Press, London, UK 

  6. Lee, S. Y. and E. T. Papoutsakis (1999) Metabolic Engineering. Marcel Dekker, NY, USA 

  7. Cha, W. S., D. B. Choi, and S. H. Kang (2004) Optimization of culture meidia for solid-state culture of pleurotus feruae. Biotechnol. Bioprocess Eng. 9: 369-373 

  8. Choi, A. S. G., Kim, B. D. Yoon, and H. M. Oh (2003) Growth and amino acid contents of spirulina platensis with different nitrogen sources. Biotechnol. Bioprocess Eng. 8: 368-374 

  9. Dubois, M., K. A. Gilles, J. K. Hamilton, P. A. Rebers, and F. Smith (1956) Colorimetric method for determination of sugars and related substances. Anal. Chem. 28: 350-356 

  10. Koroleff, F. (1970) Direct Determination of Ammonia in Natural Waters as Indophenol Blue: In Information on Techniques and Methods for Seawater Analysis. pp. 19-22. Internat. Counc. Exploration of the sea, Charlottenlund, Norway 

  11. Cataldo, D. A., M. Haroon, I. E. Scharader, and V. L. Youngs (1975) Rapid colorimetric determination of nitrate in plant tissue by nitration of salicylic acid. Commu. Soil Sci. Plan. 6: 71-80 

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  13. Ketusse, F., P. Chevallereau, J. L. Simon, and N. Lindley (2002) The influence of metabolic network structures and energy requirements on xanthan gum yields. J. Biotechnol. 99: 307-317 

  14. Vartak, B. N., C. C. Lin, J. M. Cleary, M. J. Fagan, and M. H. Jr. Saier (1995) Glucose metabolism in Sphingmonas elodea: pathway engineering via construction of a gucose- 6-phosphate dehydrogenase insertion mutant. Microbiology 141: 2339-2350 

  15. http://pseudocyc.pseudomonas.com:1555/ 

  16. http://genome.ornl.gov/microbial/avin/ 

  17. Neidhardt, F. C., J. L. Ingraham, and M. Schaechter (1990) Physiology of the Bacterial Cell: A Molecular Approach. Sinauer Associates Inc., Sunderland, Mass, UK 

  18. Ampe, F., J. L. Uribelarrea, G. M. F. Aragao, and N. D. Lindley (1997) Benzoate degradation via the ortho pathway in Alcaligenes eutrophus is perturbed by succinate. Appl. Environ. Microbiol. 63: 2765-2770 

  19. Valino, J. J. and G. Stephanopoulos (1993) Metabolic flux distribution in Corynebacterium glutmincum during growth and lysine overproduction. Biotechnol. Bioeng. 41: 633- 646 

  20. http://mbel.kaist.ac.kr/ 

  21. Schweizer, H. P. and P. Cecilia (1996) Regulation of glycerol metabolism in Pseudomonas aeruginosa: Characterization of the glpR repressor gene. J. Bacteriol. 178: 5215-5221 

  22. ttp://www.genome.jp/kegg/pathway/ 

  23. Beale, J. M. Jr. and J. L. Foster (1996) Carbohydrate fluxes into alginate biosynthesis in Azotobacter vinelandii NCIB 8789: NMR investigations of the triose pools. Biochemistry 35: 4492-4501 

  24. Portais, J. C., P. Tavernier, I. Gosselin, and J. N. Barbotin (1999) Cyclic organization of the carbohydrate metabolism in Sinohizobium meliloti. Eur. J. Biochem. 265: 473-480 

  25. Gosselin, I., O. Wattraint, D. Riboul, J. N. Barbotin, and J. Charles (2001) A deep investigation on carbohydrate cycling in Sinohizobium meliloti. FEBS Lett. 499: 45-49 

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