Escherichia coli as an Indicator of Fecal Contamination:
Bacteriological Water and Milk Standards:
Escherichia coli is an obligate inhabitant of the gastrointestinal tract of warm-blooded vertebrates.
Its presence in pasteurized milk or processing water provides unambiguous, direct proof of recent fecal contamination and potential presence of pathogenic enteric bacteria and viruses.
Conclusion: E.coli (Option 1).
Correct option: (1) E.coli
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Official PYQ Papers
Previous Year Papers ofDairy Microbiology
Practice official shift-wise question papers with answer keys and detailed explanations on the actual exam pattern.