Question

Which among the following statements are true?
(A). Probiotics should be acid tolerant.
(B). Probiotics should be safe and non-pathogenic.
(C). All probiotic strains are Gram-positive.
(D). Probiotic strains should have strong adhesion capacity in the gastro-intestinal tract.
Choose the correct answer from the options given below:

• A. (A), (B) and (D) only.
• B. (A) and (B)
• C. (A) only
• D. (A), (B), (C) and (D)

Hint:

While lactic acid bacteria are Gram-positive, the existence of the famous Gram-negative probiotic Escherichia coli Nissle 1917 disproves statement (C).

Answer 1

The Correct Option is A