A probiotic, a food product containing a probiotic, a method for preparation of said food product, a pharmaceutical composition and a use of the probiotic strain

摘要

The present invention relates to a probiotic. According to the invention it is a nisin-producing micro-organism (e.g. Lactococcus lactis) or a nisin-comprising composition obtained from said nisin-producing micro-organism. This finding is rather surprisingly, because while nisin is known to have bactericidal properties, Gram-negative bacteria are only killed if the bacteria receive an additional treatment in conjunction, such as with EDTA. The probiotic can be used as an ingredient in food (e.g. cheese), poultry feed and pharmaceutical compositions.