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http://dx.doi.org/10.5851/kosfa.2008.28.3.306

Reduction of the Antigenicity of Powdered Milk by Gamma Irradiation  

Shin, Ji-Hye (National Institute of Animal Science, RDA)
Jeong, Seok-Geun (National Institute of Animal Science, RDA)
Han, Gi-Sung (National Institute of Animal Science, RDA)
Jang, Ae-Ra (National Institute of Animal Science, RDA)
Chae, Hyun-Seok (National Institute of Animal Science, RDA)
Yoo, Young-Mo (National Institute of Animal Science, RDA)
Ahn, Chong-Nam (National Institute of Animal Science, RDA)
Lee, Ju-Woon (Korea Atomic Energy Research Institute)
Jo, Cheo-Run (Chungnam National University)
Lee, Wan-Kyu (Chungbuk National University)
Ham, Jun-Sang (National Institute of Animal Science, RDA)
Publication Information
Food Science of Animal Resources / v.28, no.3, 2008 , pp. 306-311 More about this Journal
Abstract
The aim of this work was to examine the reduction in antigenicity of milk proteins in powdered milk by gamma irradiation which is increasingly used for food safety. Skim milk powder samples were exposed to irradiation doses of 1, 5, and 10 kGy. A greater reduction of ${\alpha}_{S1}$-casein and ${\beta}_{A1}$-casein was found than ${\alpha}_{S0}$-casein and ${\beta}_{A2}$-casein by capillary electrophoresis. Competitive indirect ELISA and passive cutaneous anaphylaxis tests using guinea pigs showed a reduction in antigenicity of powdered milk by 10kGy gamma irradiation. These results indicated that gamma irradiation reduce allergenicity of milk proteins by structural changes of ${\alpha}_{S1}$-casein and ${\beta}_{A1}$-casein, and can be useful for dairy products.
Keywords
Powder milk; gamma irradiation; antigenicity;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 1  (Related Records In Web of Science)
Times Cited By SCOPUS : 0
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