한국축산식품학회지 (Food Science of Animal Resources)

  • 제28권3호
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  • Pages.306-311
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  • 2008
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  • 2636-0772(pISSN)
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  • 2636-0780(eISSN)
한국축산식품학회 (Korean Society for Food Science of Animal Resources)
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감마선 조사에 의한 분유 단백질의 항원성 저감화

Reduction of the Antigenicity of Powdered Milk by Gamma Irradiation

  • 발행 : 2008.08.30
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초록

본 연구는 안전성 확보차원에서 식품분야에 활용성이 증가하고 있는 감마선 조사처리가 유제품의 항원성 저감에도 효과가 있음을 보이기 위해 수행되었다. 모세관전기영동 결과 ${\alpha}_{S1}$-케이신과 ${\beta}_{A1}$-케이신이 ${\alpha}_{S0}$-케이신과 ${\beta}_{A2}$-케이신보다 상대적으로 많이 분해되었음을 확인하였다. cELISA를 이용한 in vitro 시험 결과와 기니픽을 이용한 수동피부아나필랙시스(Passive cutaneous anaphylaxis) 반응을 통해 10 kGy의 감마선 조사에서 뚜렷한 항원성 저감을 확인하였다. 이상의 결과는 감마선 조사가 우유 단백질의 항원, 특히 ${\alpha}_{S1}$-케이신과 ${\beta}_{A1}$-케이신의 구조를 변화시켜 항원성을 감소시키는 것으로 판단되며, 따라서 감마선 조사는 알레르기 유발 식품의 항원성 감소에 유용한 기술로 생각된다.

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.

키워드

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피인용 문헌

  1. Effects of Autoclave and Microwave Treatments on the Antigenicity of Gliadin in Medium Wheat Dough vol.44, pp.1, 2012, https://doi.org/10.9721/KJFST.2012.44.1.055
  2. Changes in Antigenicity of Gliadin from Medium Flour by Autoclave and Microwave Treatments vol.40, pp.10, 2011, https://doi.org/10.3746/jkfn.2011.40.10.1423
  3. Recent advances in the application of capillary electromigration methods for food analysis and Foodomics vol.31, pp.1, 2010, https://doi.org/10.1002/elps.200900365