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What is the water activity value required for microorganisms to grow?
Wiki User
∙ 11y ago
0.85 or higher
Wiki User
∙ 11y ago
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Why is boiling a good sterilization procedure?
Most microorganisms which cause infections or diseases can't survive at the temperature required to make water boil.
How does sugar preserve food?
Sugar preserves food by lowering the water activity (aw). If the aw is 85 or less, spoilage and pathogenic microorganisms can't grow. Microorganisms all need proper food, water, temperature and acidity to grow and adding sugar to appropriate levels can prevent bacterial growth.
Why is salt an antibacterial?
Salt may be considered an antiseptic because can kill microorganisms absorbing water from the environment.
What are the Microorganisms that live in pond water?
Pedo bear
How can you purify water that has been contaminated with salt and microorganisms?
You can separate the water from the mixture through evaporation.
What is required for life activity?
Oxygen, water, and life is required for life activity. Also ap-ma-spere<-(i couldn't spell it) is required, maybe...
What is the water activity value for milk?
0.95 or above
Why sweets are less prone to microbial degradation?
there are various factors for a microorganism to grow and multiply and one of them is the water activity or the water available in the food. syrups and honey are sugar concentrated and water content is very minimal thus inhibits the activity of microorganisms to spoil such food and sweets in general.
Why microorganisms have a hard time with salt?
Salt absorb water and without water microorganisms are killed.
Why is boiling a good sterilization procedure?
Most microorganisms which cause infections or diseases can't survive at the temperature required to make water boil.
Why is it free from diseases and microorganisms?
why ground water free from diseases and microorganisms?
How does sugar preserve food?
Sugar preserves food by lowering the water activity (aw). If the aw is 85 or less, spoilage and pathogenic microorganisms can't grow. Microorganisms all need proper food, water, temperature and acidity to grow and adding sugar to appropriate levels can prevent bacterial growth.
Does drying apples help preserve them?
By drying apples, or any food item, you reduce the water activity which will help prevent or slow the growth of spoilage microorganisms or pathogens.
How does drying apples help preserve them?
By drying apples, or any food item, you reduce the water activity which will help prevent or slow the growth of spoilage microorganisms or pathogens.
What microorganisms live in salt water?
Many microorganisms are found naturally in fresh and saltwater.
Why isn't water used to preserve microorganisms in the lab?
All of the microorganisms would absorb the water, and become corrupted because of the microorganism's that water itself contains.
What did you learn about pond water?
It is water in a ditch with many microorganisms in them.
