still for framstellning of an intended for pets, dry expanded fodoemnesprodukt as you dry

摘要

1312910 Soft expanded food product RALSTON PURINA CO 29 Nov 1971 [24 Dec 1970] 55250/71 Heading A2B A soft expanded food product comprising a puffed structure derived from a farinaceousproteinaceous mixture impregnated with an edible plasticising organic solvent, preferably glycerol and/or propylene glycol, particularly useful as a pet food, may be prepared by forming a farinaceous-proteinaceous mixture containing 10-50 wt. % of the solvent, mechanically working under pressure and above 212‹F to render it flowable and extruding through an orifice into an environment of lower pressure to give the expanded puffed product the expansion may be effected in stages by employing two orifices in series with an intermediate pressure chamber between them. The product may include colouring, flavouring, fibrous matter, and vitamin and mineral supplements. Suitable proteinaceous materials include oilseed meals, meat, poultry and fish meals, meats, and microbial proteins such as torula and brewer's yeast and petroleum derived microbial proteins.