PRODUCTION TECHNOLOGY OF FAT MIXES WITH REDUCED FAT CONTENT

摘要

A method of production of a fat mix with a decreased fat content, consisting in cream separation from milk, fat content normalisation, pasteurisation, preparation of a cream mixture with milk powder and/or other protein carriers, pasteurisation of the mixture, refrigeration, homogenisation, addition of starters, souring, introduction of the other condensing and flavour additives, thermisation, smoothing homogenisation, hot packing is characterised by the fact that pasteurised, normalised cream, supplemented or not with an addition of recombined cream, is completed with milk protein carriers and the entire mixture is submitted to thermal processing in 85-135°C for 10-180 seconds, degassed, cooled down to 30-55°C, supplemented with transglutaminase in solution or solid form, in a quantity of 0.1- 20.0 U/g of the protein, then the entire product is kept in this temperature for 15-70 minutes, followed by thermal processing in 70-92°C for 30-180 seconds, cooled down to approximately 72°C, homogenised and treated in a standard way by an addition - or not - of taste and flavour components, submission to thermisation, formation, packing and refrigeration. Transglutaminase is added separately to the thermally processed cream and to the thermally processed solution of milk protein carriers or to the thermally processed solution of milk protein carriers. Milk protein carriers can be: skimmed milk powder, whey powder, milk, condensed by evaporation or by means of membrane systems (UF, RO, microfiltration), concentrate/isolate of milk proteins, concentrate/isolate of whey proteins or their mixture. Recombined cream is added in a form of prepared mixture of skimmed milk and vegetable oils and/or animal fats and/or modified fats.