PACKAGING FOR YEAST-CONTAINING LIQUID PRODUCTS

摘要

Disclosed is a packaging for a yeast-containing liquid product. The packaging comprises at least one permeable material having an exchange surface (S) such that the S/M ratio is at least 1.2, with S in cm2 and M being the mass of the liquid in g. The coefficient of permeability (CP) to oxygen of the material is between 200 and 9,000 cm3/m2.24h.bar and the CP to carbon dioxide is between 800 to 45,000 cm3/m2.24h.bar. The packaging material can be Kraft paper bonded to an inner layer of polypropylene or polyethylene, or coextruded orientated polypropylene bonded to an inner layer of linear polyethylene. The packaging is used in the preservation of yeast for up to eight weeks after packaging. Yeast preserved in the packaging can tolerate an exposure up to 35 degrees Celsius for up to four hours.