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Publisher DOI: 10.1186/2191-0855-3-29
Title: Co-cultivation of Lactobacillus zeae and Veillonella criceti for the production of propionic acid
Language: English
Authors: Dietz, David 
Sabra, Wael 
Zeng, An-Ping 
Keywords: Propionic Acid;Lactic Acid;Lactobacillus zeae;Veillonella criceti;Dialysis chamber reactor;Co-culture;Fermentation
Issue Date: 24-May-2013
Publisher: Springer
Source: AMB Express 1 (3): Art.-Nr. 29 (2013)
Journal or Series Name: AMB express 
Abstract (english): In this work a defined co-culture of the lactic acid bacterium Lactobacillus zeae and the propionate producer Veillonella criceti has been studied in continuous stirred tank reactor (CSTR) and in a dialysis membrane reactor. It is the first time that this reactor type is used for a defined co-culture fermentation. This reactor allows high mixing rates and working with high cell densities, making it ideal for co-culture investigations. In CSTR experiments the co-culture showed over a broad concentration range an almost linear correlation in consumption and production rates to the supply with complex nutrients. In CSTR and dialysis cultures a strong growth stimulation of L. zeae by V. criceti was shown. In dialysis cultures very high propionate production rates (0.61 g L-1h-1) with final titers up to 28 g L-1 have been realized. This reactor allows an individual, intracellular investigation of the co-culture partners by omic-technologies to provide a better understanding of microbial communities. © 2013 Bel-Rhlid et al.
DOI: 10.15480/882.2280
ISSN: 2191-0855
Institute: Bioprozess- und Biosystemtechnik V-1 
Type: (wissenschaftlicher) Artikel
Appears in Collections:Publications (tub.dok)

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