Question

Which of the following bacteria produces pediocin PA1?

(a) Lactobacillus delbruckii

(b) Lactobacillus acidophilus

(c) Leuconostoc gelidum

(d) Lactobacillus helveticus

This question was addressed to me by my college professor while I was bunking the class.

I'm obligated to ask this question of LAB and Fermented Vegetables in chapter Fermenting Vegetables & Milk, Fermenting Sour Tonic Beverages, Non-Food Applications of Fermentation of Fermentation Technology

Answer 1

The correct answer is (c) Leuconostoc gelidum

Best explanation: Leuconostoc gelidum produces the bacteriocin pediocin PA1. It belongs to the class IIa of bacteriocin and is heat stable, non-modified, cationic with hydrophobic peptides. It contains a double-glycine layer peptide and pediocin-like peptides.