Which bacteria can grow in the absence of oxygen?
Anaerobes
Molds
Aerobes
Yeasts
Preservation of food by packing is:
Freezing
Canning
Pasteurization
Packing
Why should not food be wasted?
Because the world is at the edge of food crisis because of over population
Because there is no starvation in the world
Because the world is at the edge of food crisis because of population being cut down
Because there is a reduced food consumption in the world.
Food gets spoiled because of:
Bacteria
Adding preservatives
Adding color
By smoking
Who discovered pasteurization?
Thomas Pasteur
Louis Pasteur
Edward Pasteur
Michael Pasteur
The organisms used in the process of fermentation:
metabolize all the oxygen in food.
produce water in the food.
utilize all the nutrients in a food.
produce products, such as acids, that inhibit the growth of other organisms.
How can food be kept for long periods of time by adding preservatives?
Make the food too acidic for spoilage to occur
Bind to water, thereby making it unavailable to the microorganisms
Effectively kills microorganisms
Dissolve the cell walls in plant foods
The process of treating of food to prevent growth of bacteria is known as:
Food contamination
Food spoilage
Food preservation
Food degradation
Which is the biological method of food preservation ?
Drying
Fermentation
Adding salt
How does drying help in preserving food?
Drying reduces the moisture in food making them light weight
Drying increases the moisture in food making them heavy
It exposes food to smoke
It controls the immediate environment of a food product