INTRODUCTION
Ice cream is a frozen dessert usually made from dairyproducts, such as milk and cream and often combinedwith fruits or other ingredients and flavors. Mostvarieties contain sugar, although some are made withother sweeteners. In some cases, artificial flavoringsand colorings are used in addition to (or in replacementof) the natural ingredients. This mixture is stirredslowly while cooling to prevent large ice crystals from forming; the result is a smoothly textured ice cream. Useof ice cream in Iran in century of 19 from Europe enteredto Iran and has been fashionable. The rate ofconsumption for ice cream in advanced countries in2002 about 25 liter have been reported which in Iran1.7liter/year [1- 4]. Friedhoff et al. [5] have described theuse of simple microbiological criteria, including aerobicmesophilic colony counts, Enterobacteriaceae countsand in some instances, enumeration of yeast, performedon samples taken during processing in small businesses