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Evaluation of the ability to metabolize 1, 2-propanediol by heterofermentative bacteria of the genus Lactobacillus
Zielinska, Krystyna; Fabiszewska, Agata; Swiatek, Michal; Szymanowska-Powalowska, Daria.
  • Zielinska, Krystyna; Prof. Waclaw Dabrowski Institute of Agricultural and Food Biotechnology. Department of Fermentation Technology. Warsaw. PL
  • Fabiszewska, Agata; Warsaw University of Life Sciences. Faculty of Food Sciences. Department of Chemistry. Warsaw. PL
  • Swiatek, Michal; Institute of Microbial Technologies. Turek. PL
  • Szymanowska-Powalowska, Daria; Poznan University of Life Sciences. Department of Biotechnology and Food Microbiology. Poznan. PL
Electron. j. biotechnol ; 26: 60-63, Mar. 2017. ilus, ilus
Article in English | LILACS | ID: biblio-1009760
ABSTRACT

Background:

New directions of research on lactic acid bacteria include investigation of metabolic pathways for the synthesis and/or metabolism of 1,2-propanediol, commonly used in the food and chemical industry, medicine, pharmacy and cosmetology as well as agriculture. The objective of this study was to compare the capacity of strains representing three diverse heterofermentative species belonging to the genus Lactobacillus to synthesize and/or transform 1,2-PD as well as to suggest new directions of research aimed at commercial use of this metabolite.

Results:

The novel strain of Lactobacillus buchneri A KKP 2047p, characterized as exhibiting an unusual trait for that species in the form of capacity to metabolize 1,2-PD, grew poorly in a medium containing 1,2-PD as a sole carbon source. The supplementation with glucose facilitated rapid growth of bacteria and use of 1,2-PD for the synthesis of propionic acid. A similar observation was noted for Lactobacillus reuteri. On the other hand, Lactobacillus diolivorans effectively metabolized 1,2-PD which was the sole carbon source in the medium, and the addition of glucose inhibited the synthesis of propionic acid. The experiments also investigated the effect of cobalamin as a diol dehydratase coenzyme involved in the propionic acid synthesis from 1,2-PD whose addition promoted the yield of the reaction in the case of all tested strains.

Conclusions:

All tested isolates showed the ability to effectively metabolize 1,2-PD (in the presence of cobalamin) and its conversion to propionic acid, which reveals that investigated bacteria meet the essential requirements of microorganisms with a potential application.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Propylene Glycol / Lactobacillus Language: English Journal: Electron. j. biotechnol Journal subject: Biotechnology Year: 2017 Type: Article Affiliation country: Poland Institution/Affiliation country: Institute of Microbial Technologies/PL / Poznan University of Life Sciences/PL / Prof. Waclaw Dabrowski Institute of Agricultural and Food Biotechnology/PL / Warsaw University of Life Sciences/PL

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Full text: Available Index: LILACS (Americas) Main subject: Propylene Glycol / Lactobacillus Language: English Journal: Electron. j. biotechnol Journal subject: Biotechnology Year: 2017 Type: Article Affiliation country: Poland Institution/Affiliation country: Institute of Microbial Technologies/PL / Poznan University of Life Sciences/PL / Prof. Waclaw Dabrowski Institute of Agricultural and Food Biotechnology/PL / Warsaw University of Life Sciences/PL