Bibliographic citations
Jiménez, C., Bernardi, D. (2019). Tipificación y determinación de los cambios en la composición de la microbiota presente en los distintos procesos de elaboración del tocosh de papa (Solanum tuberosum) [Tesis, Universidad Peruana de Ciencias Aplicadas (UPC)]. http://hdl.handle.net/10757/648768
Jiménez, C., Bernardi, D. Tipificación y determinación de los cambios en la composición de la microbiota presente en los distintos procesos de elaboración del tocosh de papa (Solanum tuberosum) [Tesis]. PE: Universidad Peruana de Ciencias Aplicadas (UPC); 2019. http://hdl.handle.net/10757/648768
@misc{renati/386614,
title = "Tipificación y determinación de los cambios en la composición de la microbiota presente en los distintos procesos de elaboración del tocosh de papa (Solanum tuberosum)",
author = "Bernardi Espinoza, Diego",
publisher = "Universidad Peruana de Ciencias Aplicadas (UPC)",
year = "2019"
}
Fermented foods are an excellent source of microorganisms with a number of benefits for the consumer. In the high Andean areas of Peru, one of the most consumed fermented products by the inhabitants is the tocosh, which has been attributed beneficial effects on the health of the consumer. The beneficial effects could originate in the microbiota associated with tocosh and / or its manufacturing processes. Therefore, in the present study, we sought to determine the microbial composition of tocosh and how it changes in three stages of elaboration. The typification of the tocosh microbiota was analyzed by next generation sequencing (NGS) and bioinformatics tools. It was determined that the Clostridium and Prevotella phylum predominate in all three samples. Likewise, variations between the samples in relation to the microbiota of the food are evidenced, for example, in the bacterial phylum Firmicutes and Bacteroidetes. We also found genera and species with antibiotic-producing capacity, such as Actinomycetals. Finally, this study is the first to use next-generation sequencing to obtain a general mapping of the bacteria inside the tocosh with a total of 720 additional identified species and more than 50% of species not yet identified. This study could serve as a guide for future research that seeks to cultivate the bacteria found in tocosh and possibly test the antimicrobial activity attributed for many years by the high Andean population.
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