1,3-Propanediol (1,3-PD) is a bivalent alcohol, used in a number of chemical syntheses. It could be produced from glycerol in course of microbial fermentation by Klebsiella pneumoniae along with more than five minor liquid products. With the purpose to enhance 1,3-PD production and to eliminate by-products formation, principally new pH control on the process was applied. The method, named “forced pH fluctuations” was realized by consecutive raisings of pH with definite ΔpH amplitude (ranging from 1.0 to 2.0) at time intervals between 2 and 4 h, during a series of fed batch processes. The fermentation performed by forced pH fluctuations with ΔpH = 1.0, risen at every 3 h was evaluated as the most successful. Increase by 10% of the maximal amount of 1,3-PD (g/l), 22% higher productivity [g/(l h)], and 29% increase in 1,3-PD molar yield were achieved, compared to the referent fed batch (with constant pH = 7.0). In addition, significant decrease in by-products formation was obtained. The most important reduction was observed in the lactic and acetic acids yields, where 50 and 70% decrease were reached. The results suggested the potential of pH to manage the share and quantity of product spectrum in mixed diols–acids fermentations. The application of “forced pH fluctuations method” achieves the desirable increase in 1,3-PD formation and decrease in by-products accumulation at the same time by a comparatively simple approach by adjustment of one bioprocess parameter only.
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Da Silva GP, Mack M, Contiero J (2009) Glycerol: a promising and abundant carbon source for industrial microbiology. Biotechnol Adv 27:30–39
Zeng AP, Biebl H (2002) Bulk chemicals from biotechnology: the case of 1, 3-propanediol production and the new trends. Adv Biochem Eng Biotechnol 74:239–259
Biebl H, Menzel K, Zeng AP, Deckwer WD (1999) Microbial production of 1, 3-propanediol. Appl Microbiol Biotechnol 52:289–297
Zhao L, Zheng Y, Ma X, Wei D (2009) Effects of over-expression of glycerol dehydrogenase and 1, 3-propanediol oxidoreductase on bioconversion of glycerol into 1, 3-propandediol by Klebsiella pneumoniae under micro-aerobic conditions. Bioprocess Biosyst Eng 32:313–320
Zheng ZM, Xu YZ, Wang T, Dong CQ, Yang YP, Liu DH (2010) Ammonium and phosphate limitation in 1, 3-propanediol production by Klebsiella pneumoniae. Biotechnol Lett 32:289–294
Cheng KK, Liu DH, Sun Y, Liu WB (2004) 1, 3-Propanediol production by Klebsiella pneumoniae under different aeration strategies. Biotechnol Lett 26:911–915
Liu HJ, Zhang DJ, Xu YH, Mu Y, Sun YQ, Xiu ZL (2007) Microbial production of 1, 3-propanediol from glycerol by Klebsiella pneumoniae under micro-aerobic conditions up to a pilot scale. Biotechnol Lett 29:1281–1285
Petrov K, Petrova P (2009) High production of 2, 3-butanediol from glycerol by Klebsiella pneumoniae G31. Appl Microbiol Biotechnol 84:659–665
Petrov K, Petrova P (2010) Enhanced production of 2, 3-butanediol from glycerol by forced pH fluctuations. Appl Microbiol Biotechnol 87:943–949
Zheng ZM, Hu QL, Hao J, Xu F, Guo NN, Sun Y, Liu DH (2008) Statistical optimization of culture conditions for 1, 3-propanediol by Klebsiella pneumoniae AC15 via central composite design. Bioresour Technol 99:1052–1056
Ji XJ, Huang H, Zhu JG, Hu N, Li S (2009) Efficient 1, 3-propanediol production by fed-batch culture of Klebsiella pneumoniae: the role of pH fluctuations. Appl Biochem Biotechnol 159:605–613
Petrova P, Petrov K, Beschkov V (2009) Production of 1, 3-propanediol from glycerol by newly isolated strains of Klebsiella pneumoniae. Compt Rend Acad Bulg Sci 62:233–242
Yang G, Tian J, Li J (2007) Fermentation of 1,3-propanediol by a lactate deficient mutant of Klebsiella oxytoca under microaerobic conditions. Appl Microbiol Biotechnol 73:1017–1024
Zhuge B, Zhang C, Fang H, Zhuge J, Permaul K (2010) Expression of 1, 3-propanediol oxidoreductase and its isoenzyme in Klebsiella pneumoniae for bioconversion of glycerol into 1, 3-propanediol. Appl Microbiol Biotechnol 87:2177–2184
Sattayasamitsathit S, Prasertsan P, Methacanon P (2011) Statistical optimization for simultaneous production of 1, 3-propanediol and 2, 3-butanediol using crude glycerol by newly bacterial isolate. Process Biochem 46:608–614
Du C, Zhang Y, Li Y, Cao Z (2007) Novel redox potential-based screening strategy for rapid isolation of Klebsiella pneumoniae mutants with enhanced 1, 3-propanediol-producing capability. Appl Environ Microbiol 73:4515–4521
Cheng KK, Liu JH, Liu DH (2005) Multiple growth inhibition of Klebsiella pneumoniae in 1, 3-propanediol fermentation. Biotechnol Lett 27:19–22
Seo MY, Seo JW, Heo SY, Baek JO, Rairakhwada D, Oh BR, Seo PS, Choi MH, Kim CH (2009) Elimination of by-product formation during production of 1, 3-propanediol in Klebsiella pneumoniae by inactivation of glycerol oxidative pathway. Appl Microbiol Biotechnol 84:527–534
The authors would like to thank the European social fund for the financial support (grant BG051PO001-3.3.04/30).
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Petrov, K., Stoyanov, A. Accelerated production of 1,3-propanediol from glycerol by Klebsiella pneumoniae using the method of forced pH fluctuations. Bioprocess Biosyst Eng 35, 317–321 (2012). https://doi.org/10.1007/s00449-011-0569-0
- Klebsiella pneumoniae
- pH fluctuations