Sanhueza, Enrique, Esteban Paredes-Osses, Carlos L. González, and Apolinaria García. 2015. “Effect of PH in the Survival of Lactobacillus Salivarius Strain UCO_979C Wild Type and the PH Acid Acclimated Variant”. Electronic Journal of Biotechnology 18 (5). Valparaíso, Chile. https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/2015.06.005.