Fractionation of egg yolk to obtain preparations enriched in biologically active substances
2010
Siepka, E. | Bobak, L. | Trziszka, T.,Uniwersytet Przyrodniczy, Wroclaw (Poland). Katedra Technologii Surowcow Zwierzecych i Zarzadzania Jakoscia
In the research covered by this paper, it was attempted to fraction chicken egg yolk in order to receive fractions containing rich amounts of immunoglobulin (IgY) and phosvitin, and, also, to isolate phospholipids. The raw material constituted fresh eggs laid by Lohmann Brown hens. The layers were held in two groups an fed ad libitum. The control group of layers received a standard, full-portion feed mix and a preparation called Biostrong 510, which was a mixture of essential oils and high-quality herbal extracts in the encapsulated form. In the experimental group, the feed was supplemented with Humokarbowit and Humobentofet preparations mixed at a mass ratio of 1:2. The content of IgY in the egg plasma of the control group remained at a level of approximately 3,6 mg/ml, while the plasma isolated from the enriched egg yolk laid by the hens fed a supplemented feed contained about 1 mg/ml more of protein. The content of phosvitin in egg yolk of the eggs laid by the layers fed the standard and enriched feed amounted to about 4 percent
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