Question

Which of the following is used in the preparation of soy sauce?

• A. Lactic acid bacteria
• B. Yeast
• C. Aspergillus
• D. All of the above

Answer 1

Answer: (D)

All of the above

Lactic acid bacteria is known to perform fermentation reactions. The bacterium ferments the sugars into lactic acid. The yeast cells are used to convert the sugars into alcohol and carbon dioxide. This alcohol and acid are allowed to ferment second time with the use of other species of fungus-like the Aspergillus. This leads to the formation of varied different type of soy sauce which have different flavours.

Thus, the correct answer is option D.