Abstract: The invention relates to novel protective cultures, containing lactic acid-producing bacteria for preserving foodstuffs or animal feed, which can only be conserved for a limited period of time, even under refrigeration. The protective cultures can inhibit the growth of bacteria which are dangerous to the consumer, if the cold chain is interrupted, or if the prescribed cooling temperature is exceeded. The invention further relates to foodstuffs or animal feed which contain the inventive protective cultures. The strain Lactococcus lactis subsp. lactis 1526 is specifically provided.