Cited by 40Microbial Metabolic Engineering and BioproductionCatalysis for Biomass ConversionProbiotics and Fermented Foods

1,2 propanediol utilization by Lactobacillus reuteri DSM 20016, role in bioconversion of glycerol to 1,3 propanediol, 3-hydroxypropionaldehyde and 3-hydroxypropionic acid

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Amin, Heba M., Hashem, Abdelgawad M., Ashour, Mohamed S., Hatti-Kaul, Rajini·2013·Journal of Genetic Engineering and Biotechnology

Abstract

The objective of the presented work is to demonstrate the metabolism of 1,2 propandiol by Lactobacillus reuteri and to elucidate the metabolites produced during the process. This Metabolic pathway is crucial for biotechnological applications using L. reuteri in bioconversion of glycerol to industrially important plate-form chemicals. L. reuteri grown on minimal media containing 1,2 propanediol was able to utilize the compound as a sole carbon and energy source. The growth of the bacteria was linear with time; however the specific growth rate was significantly low compared to bacteria grown on the same media in the presence of glucose. The fermentation of 1,2 propanediol by L. reuteri in presence and absence of glucose was followed for 72 h and the metabolites produced during the process were detected using HPLC. 1,2 Propanediol was completely converted to propionaldhyde in a time dependent fashion, this process had a higher rate in presence of glucose. Consequently the produced propionaldhyde was converted to propionic acid and propanol in a skewed equimolar manner. In presence of glucose: acetic acid, lactic acid, succinic acid and ethanol were detected while in absence of glucose only minute amounts of acetic acid and lactic acid were detected which indicates presence of different metabolic pathways for glucose and 1,2 propanediol metabolism. Resting cells of L. reuteri induced in presence of 1,2 propanediol have shown significant capabilities to convert aqueous glycerol to 1,3 propanediol, 3-hydroxypropionaldhyde and a compound proposed to be 3-hydroxypropionic acid as detected by gas chromatographic technique.

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Crossref · 10.1016/j.jgeb.2012.12.002

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Authors
Amin, H. M., Hashem, A. M., Ashour, M. S., & Hatti-Kaul, R.
Affiliations
  • October University of Modern Sciences and Arts (EG)
  • Lund University (SE)
Corresponding author
Amin, Heba M.
Venue
Journal of Genetic Engineering and Biotechnology
Publisher
Elsevier BV
Published
2013-06
Volume
11
Issue
1
Pages
53-59
ISSN
1687-157X (ISSN-L)
OpenAlex
W1967987898
Cited by
40
References
41
Citations by year
2026: 1 · 2025: 4 · 2024: 5 · 2023: 3 · 2022: 5 · 2021: 5 · 2020: 2 · 2019: 3 · 2018: 5 · 2017: 2 · 2016: 1 · 2015: 2 · 2014: 2
FWCI
0.75
Type
journal article
Language
en
Open access
Locations
  • Journal of Genetic Engineering and Biotechnology (publishedVersion, cc-by-nc-nd)
  • Lund University Publications (Lund University) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
  • Physical Sciences › Engineering › Biomedical Engineering › Catalysis for Biomass Conversion
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
Keywords
Lactobacillus reuteri, glycerol bioconversion, 1,3-propanediol, 3-hydroxypropionaldehyde, 3-hydroxypropionic acid, propionaldehyde, propionic acid, glucose metabolism, metabolic pathways

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