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To reduce water activity, you can
# dry the food # add sugar # add salt To increase water activity, add water.
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∙ 14y ago
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What are the benefits of high water activity?
It is easy to see the shortfalls of high water activity when you look at water activity only as a way to control the growth of bad bacteria, but what if you want bacteria to actually grow in your product? The other thing is that texture depends upon water activity, so if you need to change your texture, you could raise the water activity. Another thing that is important to remember is that browning reactions occur at different water activities and you can change the water activity to control browning reactions.
Why does pressure change the freezing point of water?
restricts molecular activity
Does the food coloring change the flowers color?
It can change color when the food dye is in the water the flower soaks up the water and food dye at the same time because the food dye was put in the water.
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.
Will salt change the temperature of food?
Not significantly, but it will change the temperature that water boils at.
Is food dye a physical or chemical change?
Physical, the water is still water and the food coloring is still food coloring you just mixed them together in one space. If you waited long enough the food coloring and water would settle back out so you had just water and food coloring.
Is food color is dropped into water to give it color a chemical change?
no, a physical change
How water activity plays an important part in preservation of food?
Dried fish, Salted fish, and Smoked fish
Is Sprout water activities high or low?
The water activity in sprouts (mung bean, soy, alfalfa, etc) is high. They are a potentially hazardous food.
Food coloring to water is Physical or Chemical change?
Physical change because the two substances do not bond together. If you waited for a long time the water and the food coloring would separate.
What is a hydrolytic activity?
Activity to do with water.
What do tadpoles need to change into frogs?
heat food and fresh water
