방사선 조사에 의한 참깨박 단백질의 용출 및 기능성 변화

Change of Physical Properties and Extraction of Sesame Meal Protein by Gamma Irradiation

  • 조영제 (상주대학교 식품공학과) ;
  • 김진구 (상주대학교 식품공학과) ;
  • 차원섭 (상주대학교 식품공학과) ;
  • 박준희 (상주대학교 식품공학과) ;
  • 오상룡 (상주대학교 식품공학과) ;
  • 변명우 (한국원자력연구소) ;
  • 천성숙 (영남대학교 식품가공학과) ;
  • 김순희 (김천과학대학 식품가공과)
  • Cho, Young-Je (Department of Food Engineering, Sangju National University) ;
  • Kim, Jin-Ku (Department of Food Engineering, Sangju National University) ;
  • Cha, Won-Seup (Department of Food Engineering, Sangju National University) ;
  • Park, Joon-Hee (Department of Food Engineering, Sangju National University) ;
  • Oh, Sang-Lyong (Department of Food Engineering, Sangju National University) ;
  • Byun, Myung-Woo (Korea Atomic Energy Research Institute) ;
  • Chun, Sung-Sook (Department of Food Science & Technology, Yeungnam University) ;
  • Kim, Soon-Hee (Department of Food Science & Technology, Kimchun College)
  • 발행 : 1999.08.31

초록

폐단백질을 활용하는 방도의 하나로 참깨박으로부터 불용성 단백질의 분리 효율성을 높이고 기능성을 개선하기 위하여 실온에서 5 kGy에서 20 kGy까지 방사선을 처리하였다. 조사선량 5 kGy에서 참깨박 단백질의 용출율은 최대를 나타내었으며 그 이상의 고선량에서는 용출율이 다소 감소하였다. 방사선처리된 참깨박단백질은 거품형성력과 거품안정성이 대조구에 비해 증가하였고, 유화력과 유화안정성도 방사선처리구가 비처리구에 비해 증가하였다. 수분흡착력은 별다른 변화가 없었으나, 유지흡착력은 방사선처리구가 비처리구에 비해 감소하였다.

To extract insoluble proteins and improve physical properties of proteins, the sesame meal proteins was irradiated with $5\;kGy{\sim}20\;kGy$ at room temperature. The highest extraction rate of sesame meal protein was showed at irradiation dose of 5 kGy. The foaming capacity, foaming stability, emulsion capacity and emulsion stability of gamma irradiated sesame meal protein (GISP) were all increased as compared to those of the non-irradiated protein. Water absorption capacity of GISP was similar to that of non-irradiated protein and oil absorption capacity of GISP was decreased after treatment by gamma irradiation.

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