Fermented food (e.g. cheese, yoghurt, bread, wine) constitute a large part of our diet. They are converted from a substrate (milk, fruits, cereals) by the action of micro-organisms (yeast or lactic acid bacteria). When such starter cultures also exert a health benefit (eg. prevention of diarrhea) they are known as probiotic strains. Throughout the EU starters and probiotic strains are mainly suppl ...