La digestión in vitro como herramienta para el aislamiento funcional de un potencial probiótico Lactobacillus rhamnosus

Autores/as

DOI:

https://doi.org/10.33448/rsd-v9i10.8544

Palabras clave:

Kefir; Leche de oveja; Digestión in vitro; Lactobacillus rhamnosus.

Resumen

Este estudio tuvo como objetivo aislar cepas de microorganismos con características probióticas después de simular la digestión in vitro de leche de oveja fermentada por granos de kéfir. Se aislaron tres lactobacilos con características probióticas e identificaron como Lactobacillus rhamnosus. Los ensayos caracterizaron a estas cepas como probióticas ya que toleraron pH ácido y sales biliares, tenían resistencia a antibióticos, actividad antagonista, actividad antioxidante, presencia de enzima β-galactosidasa y otras pruebas revelaron capacidad de adhesión. Todas las cepas presentaron actividad antioxidante y sobrevivieron a diferentes pH y sales biliares. Estas cepas pueden considerarse seguras porque fueron susceptibles a los antibióticos probados, poseen actividad antagonista de patógenos y alta actividad de β-galactosidasa. En cuanto a los criterios de adhesión (hidrofobicidad y autoagregación), se destacó L. rhamnosus Lb16, que también se adhiere a las células del epitelio intestinal de ratones. El análisis de L. rhamnosus Lb16 puede ayudar a la industria láctea a mejorar los posibles beneficios para la salud humana de sus productos. Este trabajo es un importante aporte a los probióticos aislados después de la simulación de la digestión in vitro de leche fermentada de oveja mediante kéfir, este tiene un diferencial por sus diferentes características que permitieron el aislamiento de cepas resistentes a afecciones gastrointestinales.

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Publicado

27/09/2020

Cómo citar

LIMA, M. dos S. F. de .; SOUZA, K. M. S. de .; PASTRANA, L. .; SOARES, M. T. C. V. .; PORTO, A. L. F. . La digestión in vitro como herramienta para el aislamiento funcional de un potencial probiótico Lactobacillus rhamnosus. Research, Society and Development, [S. l.], v. 9, n. 10, p. e3119108544, 2020. DOI: 10.33448/rsd-v9i10.8544. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/8544. Acesso em: 25 nov. 2024.

Número

Sección

Ciencias Agrarias y Biológicas