CERELA   05438
CENTRO DE REFERENCIA PARA LACTOBACILOS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Analysis of lacic acid bacterial genomes: riboflavin biosynthesis genes
Autor/es:
LEBLANC, J.G.; SAVOY DE GIORI, G.; SESMA, F.
Lugar:
Tafi del Valle, Tucuman
Reunión:
Jornada; XXVI Jornadas Científicas de la Asociación de Biología de Tucumán; 2009
Institución organizadora:
Asociación de Biología de Tucumán
Resumen:
Riboflavin is an essential component of basic cellular metabolism since it is the precursor of the coenzymes flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD). Although riboflavin is found in a wide variety of foods, its deficiency is common in many parts of the world, not only in developing countries. The object of this work was to analyse the genomes of LAB to identify strains that have the capability to produce de novo riboflavin. Some strains of Lc. lactis, Lb. brevis, Lb. fermentum, Lb. plantarum and Lb. reuteri posses all the riboflavin biosynthesis genes whereas Lb. casei, Lb. delbruecki, Lb. gasseri, Lb. helveticus, Lb. johnsonii, Lb. rhamnosus Lb. sakei, Lb. salivarius and St. thermophilus do not. However, preliminary results in our laboratory show that riboflavin production is a strain dependant trait. These results will help in the search for novel LAB strains that can produce riboflavin as a first step in the development of novel fermented foods with increased levels of this essential vitamin.