Question

In which product is the symbiotic action of bacterial cultures observed?

• A. Yoghurt
• B. Curd
• C. Yakult
• D. Acidophilus milk

Hint:

Understand the role of symbiotic cultures to enhance the nutritional and probiotic properties of fermented dairy products.

Answer 1

The Correct Option is A

Yoghurt involves the symbiotic action of *Streptococcus thermophilus* and *Lactobacillus delbrueckii subsp. bulgaricus*. These bacteria work together, with one creating an environment favorable for the other, leading to efficient fermentation of milk. This process results in the formation of yoghurt with its characteristic flavor, texture, and probiotic benefits, aiding in digestion and gut health.