The invention provides a preparation method of DHA low-fat yoghourt. According to the technical scheme, firstly, rice
starch and DHA-O / W
emulsion which are treated through a high-pressure assisted
enzyme method serve as raw materials, and
emulsion filling gel is prepared through
microwave heating gelatinization; and homogenizing and mixing are performed on the
emulsion filling gel and skimmed milkunder
high pressure, and fermenting is performed to obtain the DHA low-fat yoghourt. The stirring type DHA low-fat yoghourt prepared by the invention not only carries functional
grease, but also hasthe texture and taste of full-fat yoghourt. According to the invention, the problems of poor taste and whey separation of the skimmed yoghourt are solved, the
fat intake is reduced, meanwhile, the oil-soluble nutritional ingredient DHA is carried, and the nutritional value of the skimmed yoghourt is improved; meanwhile, the
hardness of
starch gel is reduced through the rice
starch treated throughthe high-pressure assisted
enzyme method, and the aging phenomenon of the starch at 4 DEG C is reduced through
microwave heating; and moreover, the emulsion filling gel structure can protect the DHA
oil phase from being separated out under high-pressure homogenization treatment, so that the product stability is improved.