| 摘要 |
PURPOSE: A process of preparing egg yolk powder containing antibodies treated with a grapefruit seed extract to maintain the potency of antibodies and to increase preservability and an additive to remove a fishy smell in the yolk and to increase the flavor and preservability thereof is provided. Because the composition containing the egg yolk powder is power, it is convenient to handle and take and can also be encapsulated. CONSTITUTION: The antibodies induced from strains causing various diseases in mammals are injected to laying hens. An egg yolk liquid containing an antibody is separated from the egg produced from the immunized laying hens, added with 250 to 1,000ppm grapefruit extract and 5 to 15% by weight of white sugar and heated at 60 to 70deg.C for 3 to 10min one to three times. The heat treated egg yolk liquid is spray-dried or freeze-dried. The composition comprises 40 to 50% by weight of egg yolk powder, 45 to 55% by weight of lactic acid powder, 0.5 to 1.5% by weight of silica dioxide, 0.5 to 1.5% by weight of magnesium stearate and 0.1 to 2% by weight of a sweetener.
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