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pH is a measure of acidity or basicity of a solution, and is not an actor capable of verbing things. A bacterial cell living in an environment with too much acid or too much base (relative to what it is set up for) will tend not to do well and perhaps die, depending on how its membranes are set up. Acidophiles like and do well in low pH environments, and v.v.

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14y ago
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14y ago

Yes, lower pH can be used as a barrier for bacteria (eg. stomach).

However, there are some bacteria which can still survive in low pH eg. Helicobacter pylori.

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12y ago

to some bacteria such a pH level is hostile - to others they thrive in it.

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10y ago

disruption of the bacteria's cytoplasmic membrane

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9y ago

Most bacteria prefer neutral pH (6.5-7.5). some are Acid loving (Grow at very low pH (0.1 to 5.4)) and others Alkali loving (Vibrio cholerae and Alkaligenes faecalis optimal pH 9)

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Q: Does pH of 2 - 3.8 help to kill bacteria?
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Do bases kill bacteria?

it increases the level of pH and damages bacteria


Does caustic kill bacteria?

yeah, creating a high pH environment (pH>13), caustic kills almost all bacteria.


Why would lemon juice be an effective way to kill bacteria?

Most bacteria as well as our cells work best at certain pH levels. Lemon juice has a pH of around 2. Our body has a pH around 7.4. Most bacteria prefer a pH of 7.


How does stomach acid kill our bacteria?

A large portion of bacteria, though not all, can not survive in a low pH environment such as stomach acid. The bacteria dies from the corresive nature of low a low pH solution.


Does pH kill bacteria in swimming pool water?

Yes. The lower the pH, the fewer bacteria that can live in the water. That is also how soft drinks work. Unlike milk, a bottle of pop does not go bad in your refrigerator. That bottle is filled with a weak acid. Occasionally, it will get mold on top, but it never gets bacteria. Occasionally people's ears get mold from swimming pools. Mold can live at a lower pH than bacteria. Thus, people should dry out their ears after swimming. Chlorine also produces monatomic oxygen. That also kills bacteria. A lower pH can hurt someone's eyes. Ozone can also kill bacteria. Ozone in air will kill people long before it kills bacteria. In water, it will kill bacteria. When the ozone is dissolved in water, it kills bacteria. It would kill people long before it killed bacteria except that people do not breathe water. It stays in the water and does not get into the air.


How does tears compare to blood pH?

tears are 5.0 blood is 7.4 but the both can kill bacteria. with the acid in them.


How does bacteria affect the pH in milk?

Bacteria in milk causes milk to sour by changing lactose to lactic acid. This causes the pH to drop and once the pH drops low enough, the proteins in the milk will curdle.


Why fo you get BV after a yeast infection?

Bacterial Vaginosis and yeast infections often go hand-in hand, it's very common to have both infections at once. Your vagina is acidic to kill 'bad' bacteria and help the 'good' bacteria (such as the bacteria that help keep yeast under control) thrive, if your vaginal pH is off-balance it's normal to develop overgrowth of 'bad' bacteria and as the 'good' bacteria is reduced yeast is also allowed to thrive.


Why the distilled water has PH-6?

Ph of distilled water should be 7.But due to the presence of chlorine & alumina in trace amounts to kill the bacteria the pH shifts. We know hydrochloric acid is stronger than aluminum hydroxide thus the pH is 6.


How does lemon kill bacteria?

Lemon juice can inhibit some bacteria if they are sensitive to lower (acidic) pH. As lemon juice is an acid. But there are very high numbers of bacteria in lemon wedges when tested. See link below:


Can acid be used in a septic tank?

You should never do anything to severely offset the PH balance of a septic tank. Septic tanks use natural bacteria to break down waste solids, and an unnatural PH (acidity for instance) may kill this bacteria.


How do you get bacteria out your vagina?

Your vagina is supposed to contain bacteria as certain strains of bacteria help to protect the vagina from infection. The vagina is a self-cleaning organ, it has discharge to flush out harmful bacteria and also an acidic pH helps to maintain healthy bacteria within the vagina. As long as you're healthy you don't need to do anything to get bacteria out of your vagina, although if you have a bacterial vaginal infection like Bacterial Vaginosis you need to take antibiotics to kill excess of harmful bacteria.