Objectives: The objective of the study was to develop a strategy for the identification of new vitamin B-producing species and to characterize their production capability using a fast and sensitive LC-MS/MS method developed in this study.
Results: Searching for homologues of the bluB/cobT2 fusion gene known to be responsible for the production of the active vitamin B form in P. freudenreichii was shown to be a successful strategy for the identification of new vitamin B-producing strains. The analysis of the identified strains via LC-MS/MS showed the ability of Terrabacter sp. DSM102553, Yimella lutea DSM19828 and Calidifontibacter indicus DSM22967 to produce the active form of vitamin B. Further analysis of vitamin B production capability of Terrabacter sp. DSM102553 in M9 minimal medium and peptone-based media revealed that the highest yield of 2.65 µg of vitamin B per g dry cell weight was obtained in M9 medium.
Conclusions: The proposed strategy enabled identification of Terrabacter sp. DSM102553, whose relatively high yields obtained in the minimal medium open new perspectives for the possible application of the strain for biotechnological vitamin B production.
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| http://dx.doi.org/10.1007/s10529-023-03362-2 | DOI Listing |
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