The microbiological assay of total cobalamin (vitamin B 12) by Lactobacillus delbrueckii
subsp. lactis ATCC7830 is now used worldwide in food analysis because of its high …

Cobalamin, also known as the red-colored vitamin B12, is found in animal-based foods such
as meat, milk, and fish. Various cobalamin compounds are extracted from foods and …

Vitamin B12 dietary supplement can be critical to the alleviation strategies against
micronutrient malnutrition and food insecurity. An HPLC-DAD method has been developed …

Lactobacillus coryniformis CRL 1001 and L. reuteri CRL 1098 have the complete genes
necessary to synthesize pseudo-cobalamin as final product in a vitamin B 12 free …

The appropriateness of using solutions of cyanocobalamin as the calibration standards in
Lactobacillus leichmannii ATCC 7830 assay of total vitamin B 12 in foods, plasma and …

Vitamin B 12 is a water-soluble molecule composed of a tetrapyrrolic complex with a cobalt
atom at its centre. It is an essential regulatory element, synthesized only by bacteria; for this …

The analysis of natural cobalamins in dairy products still represents an analytical challenge.
The matrix's complexity, low concentration level, light sensitivity, and binding to proteins are …

To evaluate whether certain foods contain vitamin B12 or inactive corrinoids, a simple
analytical technique (bioautography) in which corrinoid compounds are separated by silica …

We have reported previously on the ability of Lactobacillus reuteri to produce a compound
with vitamin activity. Here we report on the chemical characterisation of this corrinoid‐like …

Only a few cobalamin-producing bacterial species are known which are suitable for food
fermentations. The strain of Acetobacter pasteurianus DSM 3509 was found to have the …