Which group of beneficial bacteria is commonly used in fermented dairy products?

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  1. Streptomyces rhizobium
  2. Lactobacillus acidophilus
  3. Staphylococcus aureus
  4. Campylobacter jejuni

Answer (Detailed Solution Below)

Option 2 : Lactobacillus acidophilus
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The correct answer is Lactobacillus acidophilus

Key Points

  • Lactobacillus acidophilus is a type of beneficial bacteria commonly used in fermented dairy products.
  • These bacteria help in the fermentation process by converting lactose into lactic acid, which gives yogurt and other fermented products their characteristic tangy flavor.
  • Lactobacillus acidophilus also has probiotic properties, aiding in digestive health and boosting the immune system.
  • Other options listed, such as Streptomyces rhizobium, Staphylococcus aureus, and Campylobacter jejuni, are either not used in dairy fermentation or are harmful pathogens.

Additional Information

  • Probiotics are live microorganisms that provide health benefits when consumed in adequate amounts.
  • Fermented dairy products like yogurt, kefir, and some cheeses are rich sources of probiotics.
  • Probiotics can help balance the gut microbiome, improve digestion, and enhance the immune response.
  • It's important to consume probiotics regularly to maintain their beneficial effects on health.
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