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handle: 10261/33947
[EN]The invention relates to a method for the detection and identification, particularly in milk, of traces of destructive bacteriophages of species of lactic acid bacteria (LAB) (Lactococcus, Streptococcus and Lactobacillus) which are used in industrial dairy fermentations, using multi-PCR. The multiple PCR amplification is performed with specific primer oligonucleotides of conserved regions of the genome of the aforementioned bacteriophages. Said viruses are the main cause of fermentation failures in the dairy industries, thereby generating significant losses. The inventive method can be used to make decisions, such as assigning contaminated milk to processes that do not involve the use of LAB that are sensitive to the identified phages or to inactivation treatments as well as the disinfection of the production plant. The main advantage of the method is the speed with which it can be performed, together with the specificity, simplicity and sensitivity thereof.
[ES]La presente invención describe un procedimiento de detección e identificación, especialmente en leche, de trazas de \O bacteriófagos destructivos de especies de bacterias del ácido láctico (BAL) (Lactococcus, Streptococcus y Lactobacillus) utilizadas O en fermentaciones lácticas industriales, mediante MULTI-PCR. La amplificación múltiple por PCR se realiza con oligonucleótidos O cebadores específicos de regiones conservadas del genoma de estos bacteriófagos. Estos virus son la principal causa de fallo en las M fermentaciones en las industrias lácteas, provocando importantes pérdidas. Este procedimiento permite tomar decisiones tales como destinar la leche contaminada hacia procesos donde no intervengan BAL sensibles a los fagos identificados o hacia tratamientos de inactivación, así como la desinfección de la planta de producción. La principal ventaja del procedimiento es la rapidez, junto con la especificidad, la sencillez y la sensibilidad.
Fecha de presentación internacional:20.06.2006.- Titulares:Consejo Superior de Investigaciones Científicas (CSIC).-Corporación Alimentaria Peñasanta, S.A.
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