1,3‐Propanediol production from glycerol by a newly isolated Trichococcus strain

Summary A coccal bacterium (strain ES5) was isolated from methanogenic bioreactor sludge with glycerol as the sole energy and carbon source. Strain ES5 fermented glycerol to 1,3‐propanediol as main product, and lactate, acetate and formate as minor products. The strain was phylogenetically closely r...

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Bibliographic Details
Published in:Microbial biotechnology 2012-07, Vol.5 (4), p.573-578
Main Authors: van Gelder, Antonie H., Aydin, Rozelin, Alves, M. Madalena, Stams, Alfons J. M.
Format: Article
Language:English
Subjects:
1,3-Propanediol
Acetates - metabolism
Acetic acid
Ambient temperature
Bacteria
Bacterial Typing Techniques
Biodiesel fuels
Bioreactors
Brief Report
Carbon - metabolism
Carbon sources
Carnobacteriaceae - classification
Carnobacteriaceae - genetics
Carnobacteriaceae - isolation & purification
Carnobacteriaceae - metabolism
Catalysts
Cluster Analysis
Deoxyribonucleic acid
DNA
DNA, Bacterial - chemistry
DNA, Bacterial - genetics
DNA, Ribosomal - chemistry
DNA, Ribosomal - genetics
Energy Metabolism
Fermented food
Formates - metabolism
Glycerol
Glycerol - metabolism
Growth rate
Lactic acid
Lactic Acid - metabolism
Low temperature
Molecular Sequence Data
Organic chemicals
Phylogenetics
Phylogeny
Physiology
Propylene Glycols - metabolism
RNA, Ribosomal, 16S - genetics
rRNA
Sensors
Sequence Analysis, DNA
Sewage - microbiology
Sludge
Substrates
Sugar
Temperature
Temperature effects
Yeast
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Summary:Summary A coccal bacterium (strain ES5) was isolated from methanogenic bioreactor sludge with glycerol as the sole energy and carbon source. Strain ES5 fermented glycerol to 1,3‐propanediol as main product, and lactate, acetate and formate as minor products. The strain was phylogenetically closely related to Trichococcus flocculiformis; the rRNA gene sequence similarity was 99%. However, strain ES5 does not show the typical growth in chains of T. flocculiformis. Moreover, T. flocculiformis does not ferment glycerol. Strain ES5 used a variety of sugars for growth. With these substrates, lactate, acetate and formate were the main products, while 1,3‐propanediol was not formed. The optimum growth temperature of strain ES5 ranges from 30–37°C, but like several other Trichoccoccus strains, strain ES5 is able to grow at low temperature (
ISSN:1751-7915
1751-7915
DOI:10.1111/j.1751-7915.2011.00318.x