Ontology highlight
ABSTRACT:
SUBMITTER: Goncalves LC
PROVIDER: S-EPMC3760816 | biostudies-literature | 2013
REPOSITORIES: biostudies-literature
Gonçalves Letícia Christina Pires LC Da Silva Sandra Maria SM DeRose Paul C PC Ando Rômulo Augusto RA Bastos Erick Leite EL
PloS one 20130903 9
In this proof-of-concept study, we describe the use of the main red beet pigment betanin for the quantification of calcium dipicolinate in bacterial spores, including Bacillus anthracis. In the presence of europium(III) ions, betanin is converted to a water-soluble, non-luminescent orange 1∶1 complex with a stability constant of 1.4 × 10(5) L mol(-1). The addition of calcium dipicolinate, largely found in bacterial spores, changes the color of the aqueous solution of [Eu(Bn)(+)] from orange to m ...[more]