Composition comprising a bacteriocin and an extract from a plant of the labiatae family

A method for preventing and/or inhibiting the growth of, and/or killing a micro-organism in a material, wherein:

• the method comprises contacting the material with ingredients of a protectant composition comprising nisin and an extract obtained from or obtainable from rosemary;
• and
• the protectant composition comprises phenolic diterpenes in an amount of greater than 1.0 wt. % based on the protectant composition.

A method for preventing and/or inhibiting the growth of, and/or killing a micro-organism in a foodstuff, wherein:

• the method comprises forming a protected foodstuff by a process comprising contacting the foodstuff with ingredients of a protectant composition comprising nisin and an extract obtained from or obtainable from rosemary,
• the protected foodstuff comprises a phenolic diterpene having a concentration of at least about 0.00084% w/w, and
• the protected foodstuff comprises nisin at a concentration of at least about 25 IU/g.