The Food Microbiome - Quiz

Microbes can be found in all sorts of food and play an essential role in the production of quite a few foods that we all eat regularly through a process called fermentation.
How much do you know about the role of microbes in food? Test your knowledge, maybe you know more than you think.
Question 1
How long have fermented milk products existed?
A
300 years
B
3000 years
C
30000 years
Question 1 Explanation: 
Around 1000 BC yoghurt became a common way to preserve milk from domesticated animals.
Question 2
Which microorganism are used to make fermented foods?
A
Bacteria & Yeast
B
Yeast & Archaea
C
Archaea & Bacteria
Question 2 Explanation: 
Acids in fermented foods are produced by yeast and bacteria (e.g. Lactobacillus, Streptococcus).
Question 3
What is NOT a fermented food product?
A
Cheese
B
Yoghurt
C
Milk
Question 3 Explanation: 
For cheese and yoghurt production milk is being fermented. Milk in itself is not a fermented product.
Question 4
How do you ferment vegetables?
A
Put vegetables in the sun and wait
B
Freeze vegetables and wait
C
Put vegetables under water and wait
Question 4 Explanation: 
The process to ferment vegetables is by putting the vegetable under water, creating an environment without oxygen where only anaerobic bacteria (bacteria that don’t need oxygen) can grow.
Question 5
Looking at your glass jar with fermented vegetables, how do you know the fermentation process is going strong?
A
You can see mould
B
You can see yeast
C
You can see bubbles
Question 5 Explanation: 
It is a good sign if you can see bubbles. These are evoked by the creation of carbon dioxide (CO2) during the fermentation process.
There are 5 questions to complete.

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