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| CHÁVEZ-MARTÍNEZ,América; PAREDES-MONTOYA,Pedro; RENTERÍA-MONTERRUBIO,Ana-Luisa; CORRAL-LUNA,Agustín; LECHUGA-VALLES,Ruth; DOMINGUEZ-VIVEROS,Joel; SÁNCHEZ-VEGA,Rogelio; SANTELLANO-ESTRADA,Eduardo. |
| Abstract Microbial quality and the prevalence of foodborne pathogens (E. coli 0157:H7, Salmonella spp., Listeria monocytogenes and Campylobacter jejuni) of cheeses sold at three retail points (supermarkets [SM], street markets [ST], and convenience grocery stores [CGS]) in Chihuahua, Mexico, were evaluated (n=90). The most commonly found cheeses in the retail points were Chihuahua (60%) and Ranchero (28.8%). According to Mexican standards, three SM, two CGS, and none of the ST cheeses complied with the regulations. Two cheeses (cheddar and Ranchero) from SM (2.22%) were positive for L. monocytogenes. Eight cheeses (8.88%) were positive for Salmonella spp. (5 from ST and 3 from CGS). E.coli 0157:H7 and Campylobacter jejuni were negative in all samples. In... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mexican cheese; Foodborne pathogens; Microbial quality. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000600703 |
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| GALLEGOS-ACEVEDO,Mario-Alejandro; CHÁVEZ-MARTÍNEZ,América; CORRAL-LUNA,Agustín; RENTERÍA-MONTERRUBIO,Ana-Luisa; BURROLA-BARRAZA,M. Eduvigues; LECHUGA-VALLES,Ruth; DOMINGUEZ-VIVEROS,Joel; CASTILLO-GONZÁLEZ,Alva-Rocío; SÁNCHEZ-VEGA,Rogelio. |
| Abstract The aim of this work is to characterize the natural microflora of artisanal Ranchero cheese and to identify Lactococcus isolates. Ten artisanal Ranchero cheese samples made with raw milk were obtained from local producers located in different geographical areas. Aerobic mesophilic, Staphylococci, Psychrophilic , total coliforms, molds, yeast and, lactic acid bacteria (LAB) (Lactococcus , Streptococcus mesophilic and thermophilic, Lactobacillus , Enterococcus, Leuconostoc) were numbered through agar plating. LAB isolates were classified by genus. Then, nineteen randomly selected presumptive Lactococcus isolates were assigned to specie by PCR amplification and DNA sequence. A high number of aerobic mesophilic Staphylococci, Psychrophilic, total... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactococcus; Microbiota; Artisanal Ranchero cheese. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000100143 |
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