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Effect of cultivation pH and agitation rate on growth and xylanase production by Aspergillus oryzae in spent sulphite liquor

  • Original Paper
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Journal of Industrial Microbiology & Biotechnology

Abstract

The effects of cultivation pH and agitation rate on growth and extracellular xylanase production by Aspergillus oryzae NRRL 3485 were investigated in bioreactor cultures using spent sulphite liquor (SSL) and oats spelts xylan as respective carbon substrates. Xylanase production by this fungus was greatly affected by the culture pH, with pH 7.5 resulting in a high extracellular xylanase activity in the SSL-based medium as well as in a complex medium with xylan as carbon substrate. This effect, therefore, was not solely due to growth inhibition at the lower pH values by the acetic acid in the SSL. The xylanase activity in the SSL medium peaked at 199 U ml−1 at pH 7.5 with a corresponding maximum specific growth rate of 0.39 h−1. By contrast, the maximum extracellular β-xylosidase activity pf 0.36 U ml−1 was recorded at pH 4.0. Three low molecular weight xylanase isozymes were secreted at all pH values within the range of pH 4–8, whereas cellulase activity on both carbon substrates was negligible. Impeller tip velocities within the range of 1.56–3.12 m s−1 had no marked effect, either on the xylanase activity, or on the maximum volumetric rate of xylanase production. These results also demonstrated that SSL constituted a suitable carbon feedstock as well as inducer for xylanase production in aerobic submerged culture by this strain of A. oryzae.

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References

  1. Amanullah A, Blair R, Nienow AW, Thomas CR (1999) Effects of agitation intensity on mycelial morphology and protein production in chemostat cultures of recombinant Aspergillus oryzae. Biotechnol Bioeng 62:434–445

    Article  CAS  Google Scholar 

  2. Anthony T, Chandra RK, Rajendran A, Gunasekaran P (2003) High molecular weight cellulase-free xylanase from alkali-tolerant Aspergillus fumigatus AR1. Enzyme Microb Technol 32:647–654

    Article  CAS  Google Scholar 

  3. Axe DD, Bailey JE (1995) Transport of lactate and acetate through the energised cytoplasmic membrane of Escherichia coli. Biotechnol Bioeng 47:8–19

    Article  CAS  Google Scholar 

  4. Bailey MJ, Biely P, Poutanen K (1992) Interlaboratory testing of methods for assay of xylanase activity. J Biotechnol 23:257–270

    Article  CAS  Google Scholar 

  5. Bailey MJ, Buchert J, Viikari L (1993) Effect of pH on production of xylanase by Trichoderma reesei on xylan and cellulose-based media. Appl Microbiol Biotechnol 40:224–229

    Article  CAS  Google Scholar 

  6. Bailey MJ, Poutanen K (1989) Production of xylanolytic enzymes by strains of Aspergillus. Appl Microbiol Biotechnol 30:5–10

    Article  CAS  Google Scholar 

  7. Bailey MJ, Viikari L (1993) Production of xylanases by Aspergillus fumigatus and Aspergillus oryzae on xylan-based media. World J Microbiol Biotechnol 9:80–84

    Article  CAS  Google Scholar 

  8. Biely P, Markovik O, Mislovicova D (1985) Sensitive detection of endo-1,4-β-xylanases in gels. Anal Biochem 144:147–151

    Article  CAS  Google Scholar 

  9. Biely P (1985) Microbial xylanolytic systems. Trends Biotechnol 3:286–290

    Article  CAS  Google Scholar 

  10. Chandra RK, Chandra TS (1995) Production of cellulase-free xylanase from an alkalo-tolerant Aspergillus fischeri Fxn1. Biotechnol Lett 17:309–314

    Article  Google Scholar 

  11. Chipeta ZA, du Preez JC, Szakacs G, Christopher L (2005) Xylanase production by fungal strains on spent sulphite liquor. Appl Microbiol Biotechnol 69:71–78

    Article  CAS  Google Scholar 

  12. Christov LP, Prior BA (1998) Research in the pulp and paper industry in South Africa. S Afr J Sci 94:195–200

    CAS  Google Scholar 

  13. Coughlan MP, Tuohy MG, Filho EXF, Puls J, Claeyssens M, Vrsanska M, Hughes MH (1993) Enzymological aspects of microbial hemicellulases with emphasis on functional systems. In: Coughlan MP, Hazlewood GP (eds) Hemicelluloses and Hemicellulases. Portland Press, London, pp 53–84

    Google Scholar 

  14. De Souza DF, De Souza CGM, Peralta RM (2001) Effect of easily metabolizable sugars in the production of xylanase by Aspergillus tamarii in solid-state fermentation. Process Biochem 36:835–838

    Article  Google Scholar 

  15. Du Preez JC, van der Walt JP (1983) Fermentation of D-xylose to ethanol by a strain of Candida shehatae. Biotechnol Lett 5:357–362

    Article  CAS  Google Scholar 

  16. Dubeau H, Chahal DS, Ishaque M (1987) Xylanase of Chaetomium cellulolyticum: its nature of production and hydrolytic potential. Biotechnol Lett 9:275–280

    Article  CAS  Google Scholar 

  17. Ghose TK (1987) Measurement of cellulase activities. Pure Appl Chem 59:257–268

    Article  CAS  Google Scholar 

  18. Gibbs PA, Seviour RJ, Schmid F (2000) Growth of filamentous fungi in submerged culture: problems and possible solutions. Crit Rev Biotechnol 20:17–48

    Article  CAS  Google Scholar 

  19. Hang YD, Woodmans EE (1997) Xylanolytic activity of commercial juice processing enzyme preparations. Biores Technol 58:137–161

    Google Scholar 

  20. Herbert D, Phipps PJ, Strange RE (1971) Chemical analysis of microbial cells. In: Norris JR, Ribbons DW (eds) Methods in microbiology, vol 5b. Academic, New York, pp 209–344

    Google Scholar 

  21. Hoq MM, Hempel C, Deckwer W-D (1994) Cellulase-free xylanase by Thermomyces lanuginosus RT9: effect of agitation, aeration, and medium components on production. J Biotechnol 37:49–58

    Article  CAS  Google Scholar 

  22. Kadowaki MK, Souza CGM, Simao RCG, Peralta RM (1997) Xylanase production by Aspergillus tamarii. Appl Biochem Biotechnol 66:97–106

    Article  CAS  Google Scholar 

  23. Kulkarni N, Rao M (1996) Application of xylanase from alkalophilic thermophilic Bacillus sp. NCIM 59 in biobleaching of bagasse pulp. J Biotechnol 51:67–73

    Article  Google Scholar 

  24. Leathers TD, Detroy RW, Bothast RJ (1986) Induction and glucose repression of xylanase from a colour variant strain of Aureobasidium pullulans. Biotechnol Lett 8:867–872

    Article  CAS  Google Scholar 

  25. Lenartovicz V, de Souza CGM, Moreira FG, Peralta RM (2002) Temperature and carbon source affect the production and secretion of a thermostable β–xylosidase by Aspergillus fumigatus. Process Biochem 38:1775–1780

    Article  CAS  Google Scholar 

  26. Mukataka S, Kobayashi N, Sato S, Takahashi J (1988) Variation in cellulase-constituting components from Trichoderma reesei with agitation intensity. Biotechnol Bioeng 32:760–763

    Article  CAS  Google Scholar 

  27. Nigam JN (2001) Ethanol production from wheat straw hemicellulose hydrolysate by Pichia stipitis. J Biotechnol 87:17–27

    Article  CAS  Google Scholar 

  28. Palma MB, Milagres AMF, Prata AMR, de Mancilha IM (1996) Influence of aeration and agitation rate on the xylanase activity from Penicillium janthinellum. Process Biochem 31:141–145

    Article  CAS  Google Scholar 

  29. Purkarthofer H, Sinner M, Steiner W (1993) Effect of shear rate and culture pH on the production of xylanase by Thermomyces lanuginosus. Biotechnol Lett 15:405–410

    Article  CAS  Google Scholar 

  30. Rizzatti ACS, Jorge JA, Terenzi HF, Rechia CGV, Polizeli MLTM (2001) Purification and properties of a thermostable extracellular β-xylosidase produced by a thermotolerant Aspergillus phoenicis. J Ind Microbiol Biotechnol 26:156–160

    Article  CAS  Google Scholar 

  31. Royer JG, Nakas JP (1989) Xylanase production by Trichoderma longibrachiatum. Enzyme Microb Technol 11:405–410

    Article  CAS  Google Scholar 

  32. Siedenburg D, Gerlach SR, Schügerl K, Giuseppin MLF, Hunik J (1998) Production of xylanase by Aspergillus awamori on synthetic medium in shake flask cultures. Process Biochem 33:429–433

    Article  Google Scholar 

  33. Singh S, du Preez JC, Pillay B, Prior BA (2000) The production of hemicellulases by Thermomyces lanuginosus strain SSBP: influence of agitation and dissolved oxygen tension. Appl Microbiol Biotechnol 54:698–704

    Article  CAS  Google Scholar 

  34. Steiner W, Lafferty RM, Gomes I, Esterbauer H (1987) Studies on a wild type strain of Schizophyllum commune: cellulase and xylanase production and formation of extracellular polysaccharide schizophyllan. Biotechnol Bioeng 30:169–178

    Article  CAS  Google Scholar 

  35. Techapun C, Poosaran N, Watanabe M, Sasaki K (2003) Optimisation of aeration and agitation rates to improve cellulase-free xylanase production by thermotolerant Streptomyces sp. Ab106 and repeated fed-batch cultivation using agricultural waste. J Biosci Bioeng 95:298–301

    CAS  Google Scholar 

  36. Wong KKY, Saddler SN (1992) Trichoderma xylanases, their properties and applications. Crit Rev Biotechnol 12:413–435

    Article  CAS  Google Scholar 

  37. Wong KKY, Tan LUL, Saddler JN (1988) Multiplicity of β-1,4-xylanase in microorganisms: functions and applications. Microbiol Rev 52:305–317

    CAS  Google Scholar 

  38. Xiong H, von Weymarn N, Leisola M, Turunen O (2004) Influence of pH on the production of xylanases by Trichoderma reesei Rut C-30. Process Biochem 39:729–733

    Article  CAS  Google Scholar 

  39. Zheng W, Schingoethe DJ, Stegeman GA, Hippen AR, Treachert R (2000) Determination of when during the lactation cycle to start feeding a cellulase and xylanase enzyme mixture to dairy cows. J Dairy Sci 83:2319–2325

    Article  CAS  Google Scholar 

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Acknowledgments

The authors thank Sappi Saiccor (Pty) Ltd. and the Water Research Commission, South Africa, for financial support and Sappi Management Services for granting permission to publish this work. Part of this work was supported by the National Research Foundation, South Africa under grant number 2053257.

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Correspondence to James C. du Preez.

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Chipeta, Z.A., du Preez, J.C. & Christopher, L. Effect of cultivation pH and agitation rate on growth and xylanase production by Aspergillus oryzae in spent sulphite liquor. J Ind Microbiol Biotechnol 35, 587–594 (2008). https://doi.org/10.1007/s10295-008-0320-2

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  • DOI: https://doi.org/10.1007/s10295-008-0320-2

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