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Probiotic Characterization of Enterococcus spp. Isolated from Raw Goat Milk
Azhar, Farhat-ul-Ain; Mehnaz, Samina; Akbar, Ali; Sadiq, Muhammad Bilal.
  • Azhar, Farhat-ul-Ain; Forman Christian College (A Chartered University). School of Life Sciences. Lahore. PK
  • Mehnaz, Samina; Forman Christian College (A Chartered University). School of Life Sciences. Lahore. PK
  • Akbar, Ali; University of Balochistan. Department of Microbiology. Quetta. PK
  • Sadiq, Muhammad Bilal; Forman Christian College (A Chartered University). School of Life Sciences. Lahore. PK
Braz. arch. biol. technol ; 65: e22210091, 2022. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1364453
ABSTRACT
Abstract The aim of this research was to determine the probiotic potential and safety of lactic acid bacteria (LAB) isolated from raw goat milk. Gram positive and catalase negative bacteria were isolated from raw goat milk (n = 61) and identified as LAB. LAB isolates were screened for antimicrobial, probiotic and technological characteristics. LAB isolates showed antimicrobial activity against foodborne pathogens (Staphylococcus aureus, Escherichia coli and Salmonella Typhimurium) and high survival rate at pH 2 (93.54-100.38% after 4h), in the presence of 0.3% bile salts (100.85-108.96% after 4h) and simulated gastric fluid (74.16-80.13% after 3h). Three LAB isolates (1, 3 and 13) with high antimicrobial activity against all foodborne pathogens and probiotics characteristics were subjected to 16S rRNA sequencing and identified as Enterococcus faecium strains. Enterococcus spp. exhibited milk coagulation potential, amylolytic activity, susceptibility to antibiotics and no evidence of hemolysis. Enterococcus spp. isolated from goat milk showed probiotic and technological characteristics and can be used as a starter culture after further safety evaluation.


Full text: Available Index: LILACS (Americas) Type of study: Prognostic study Language: English Journal: Braz. arch. biol. technol Journal subject: Biology Year: 2022 Type: Article Affiliation country: Pakistan Institution/Affiliation country: Forman Christian College (A Chartered University)/PK / University of Balochistan/PK

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Full text: Available Index: LILACS (Americas) Type of study: Prognostic study Language: English Journal: Braz. arch. biol. technol Journal subject: Biology Year: 2022 Type: Article Affiliation country: Pakistan Institution/Affiliation country: Forman Christian College (A Chartered University)/PK / University of Balochistan/PK