Question

Which one of the following microbes causes acidification and curding of milk?

• A. Lactic Acid Bacillus
• B. Clostridium botulinum
• C. Vibrio cholerae
• D. Saccharomyces cerevisiae

Answer 1

The correct option is A Lactic Acid Bacillus

A. Lactobacillus, commonly known as Lactic Acid Bacteria (LAB) grow in milk and convert it into curd. LAB produces acids that coagulate and partially digest the milk proteins, resulting in the conversion of milk into curd.

B. Clostridium botulinum produces a toxin botulinum which causes botulism in humans.

C. Vibrio cholerae causes cholera in humans

D. Saccharomyces cerevisiae is used in the production of bread and alcohol.

So, the correct answer is 'Lactic Acid Bacillus'.