Microbiology - Microbiology of Foods - Discussion

Discussion :: Microbiology of Foods - Section 1 (Q.No.1)


Most spoilage bacteria grow at

[A]. acidic pH
[B]. alkaline pH
[C]. neutral pH
[D]. any of the pH

Answer: Option C


No answer description available for this question.

Jhilik said: (Jan 8, 2014)  
Basically all the bacteria survive at ph 5-8. So mainly in neutral ph foods are spoiled.

Hilarion Tonda Maheera said: (Feb 10, 2014)  
The bacteria have a weak cell membrane which cannot protect it in extreme pH levels of high alkalinity and acidity thus, proliferating them to grow in only neutral pH.

Micro Student said: (Oct 15, 2015)  
Yes bacteria at grown at very high or low pH.

Freedom said: (Jun 28, 2016)  
Because bacteria can't grow in very high or low pH due to that the spollers are neutral pH bacterias.

Aloysius said: (Jun 27, 2018)  
Majority of the bacteria does the spoilage at neutral pH. But Bacteria like H pylori can spoil the substrate at acidic medium because they are highly adaptive to acidic medium.

Priya Kathiriya said: (Oct 1, 2018)  
Because most of bacteria are grow at normal condition and mostly normal condition is found at neutral pH.

Nickyz said: (Apr 15, 2019)  
Bacterias have optimum pH at which they operate. High acidity or alkalinity will disrupt the cell-membrane as well as destroy proteins and enzymes, effectively inhibiting metabolism. Thus a neutral pH is suitable for spoilage bacterias.

Prof Kibitoki said: (Jun 6, 2019)  
Most of the spoilage bacteria they live in neutral pH because, microbes live in optimal pH but in this case, many bacteria live around 5-8 pH and mostly work at neutral pH, also at high acidity and high alkalinity bacterial cell membrane can be destroyed.

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