TY - JOUR
T1 - Antibiotic resistance and tolerance to simulated gastrointestinal conditions of eight hemolytic Bacillus pumilus isolated from pulque, a traditional Mexican beverage
AU - González-Vázquez, Raquel
AU - Mayorga-Reyes, Lino
AU - Monroy-López, Armando
AU - Reyes-Nava, Luis A.
AU - Rivera-Espinoza, Yadira
AU - Azaola-Espinosa, Alejandro
N1 - Publisher Copyright:
© 2017, The Korean Society of Food Science and Technology and Springer Science+Business Media Dordrecht.
PY - 2017/4/1
Y1 - 2017/4/1
N2 - Traditional fermented sap beverages from two provinces of Mexico were studied for the isolation of pathogenic bacteria from these beverages. Eight strains of hemolytic Gram positive bacteria, identified as Bacillus pumilus (B. pumilus), were isolated. They showed different antibiotic resistance profiles and tolerances to the simulated gastrointestinal conditions. All the B. pumilus isolated were resistant to at least one antibiotic tested. Regarding the simulated gastrointestinal conditions, strains S1 and S3 were able to tolerate all the conditions. Hemolytic activity has been associated with a health risk and is often considered as a virulence determinant associated with pathogenicity. Therefore, the hemolytic activity along with the ability to tolerate gastrointestinal conditions and the resistance to antibiotics exhibited by B. pumilus strains S1 and S3 could be associated with a health risk for pulque consumers.
AB - Traditional fermented sap beverages from two provinces of Mexico were studied for the isolation of pathogenic bacteria from these beverages. Eight strains of hemolytic Gram positive bacteria, identified as Bacillus pumilus (B. pumilus), were isolated. They showed different antibiotic resistance profiles and tolerances to the simulated gastrointestinal conditions. All the B. pumilus isolated were resistant to at least one antibiotic tested. Regarding the simulated gastrointestinal conditions, strains S1 and S3 were able to tolerate all the conditions. Hemolytic activity has been associated with a health risk and is often considered as a virulence determinant associated with pathogenicity. Therefore, the hemolytic activity along with the ability to tolerate gastrointestinal conditions and the resistance to antibiotics exhibited by B. pumilus strains S1 and S3 could be associated with a health risk for pulque consumers.
KW - Bacillus pumilus
KW - antibiotic resistance
KW - hemolytic activity
KW - pulque
KW - simulated gastrointestinal stress
UR - http://www.scopus.com/inward/record.url?scp=85018504638&partnerID=8YFLogxK
U2 - 10.1007/s10068-017-0061-y
DO - 10.1007/s10068-017-0061-y
M3 - Artículo
SN - 1226-7708
VL - 26
SP - 447
EP - 452
JO - Food Science and Biotechnology
JF - Food Science and Biotechnology
IS - 2
ER -