Question:

Big holes in Swiss cheese are made by

Updated On: Jul 6, 2022
  • A machine
  • A bacterium that produces methane gas
  • A bacterium producing a large amount of carbon dioxide
  • A fungus that releases a lot of gases during its metabolic activities
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The Correct Option is C

Solution and Explanation

Ripened cheese is prepared from unripened cheese by first dipping in brine, wiping and then maturation with different strain of bacteria and fungi. It takes 1-16 months for ripening. Large holed Swiss cheese is ripened with the help of $CO_2$ producing (causing holes) bacterium called Propionibacterium sharmanii.
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Top Questions on Microbes in human welfare

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Notes on Microbes in human welfare

Concepts Used:

Microbes in Human Welfare

There are several valuable microorganisms that are beneficial to humans in various manners such as:

In Household Products

  1. Fermentation of milk to produce yogurt.
  2. Milk cuddling to compose curd, cheese, and paneer.

In Industrial Products

  1. Production of beverages such as wine, beer, whiskey, brandy, or rum.
  2. Production of antibiotics such as Penicillin and other chemical substances to kill or retard the expansion of disease-causing microbes.

Fermented Beverages

  1. A fermentor is used to produce microbes on a large scale for industrial purposes.
  2. The brewer’s yeast (Saccharomyces cerevisiae) is used to make ethanol. At this time, the yeast ferments malted cereals and fruit juices.

Antibiotics

  1. The term antibiotic means “against life”. These materials can kill or destroy the growth of other microbes.