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전자선 조사된 원료육과 Stater Culture의 사용이 발효육의 숙성 중 품질에 미치는 영향

Effects of Starter Cultures on the Quality Traits of Electron Beam Irradiated Fermented Meat during Aging

  • 임동균 (서울대학교 동물생명공학) ;
  • 설국환 (서울대학교 동물생명공학) ;
  • 이무하 (서울대학교 동물생명공학)
  • Lim, Dong-Gyun (Department of Animal Science and Biotechnology, Seoul National University) ;
  • Seol, Kuk-Hwan (Department of Animal Science and Biotechnology, Seoul National University) ;
  • Lee, Moo-Ha (Department of Animal Science and Biotechnology, Seoul National University)
  • 발행 : 2007.09.30

초록

본 연구의 목적은 시판 중인 스타터를 이용한 발효육제품과 스타터를 이용하지 않고 자연발효시킨 육제품의 발효 및 숙성 중 미생물학적, 이화학적인 특성에 미치는 영향을 연구하고, 원료육에서의 전자선 조사(2 kGy) 효과를 검증하고자 한다. 2 kGy로 전자선 조사한 스타터 첨가구는 발효 및 숙성 중 pH가 급격히 감소하였으며(p<0.05), 최종 pH 는 4.25를 나타내었다. 총균수와 젖산균수는 스타터 첨가에 의해 좌우되는데 발효가 진행됨에 따라 총균수와 젖산균수가 유사한 경향을 나타내었다. TBARS 값은 발효 및 숙성기간이 증가함에 따라 모든 처리구에서 증가하였다. 본 연구결과를 통해 발효육 생산 전 2 kGy로 전자선 조사처리한 경우 총균수를 감소시키고 젖산균수는 증식하는 것을 확인하였다. 조사처리 후 육에 스타터를 첨가하게 되면 발효육 생산에 매우 유용하게 이용될 수 있을 것으로 사료된다.

The microbiological and physicochemical properties of irradiated (2 kGy) or non-irradiated fermented meats processed with or without a commercial starter culture were evaluated during fermentation and aging. The pH of irradiated (2 kGy) fermented meats with starter cultures dramatically decreased during fermentation and aging (p<0.05), and the final pH was 4.25. The total aerobic counts and lactic acid bacteria counts reflected the addition of the starter culture. As the fermentation progressed, the total aerobic counts closely paralleled the lactic acid bacteria counts. The TBARS values of irradiated fermented meats increased regardless of the treatment during fermentation and aging. These results show that the irradiated (electron-beam) meat/fat resulted in the reduction of the total microbes and survives lactic acid bacteria. The use of starter cultures in meat batters post-irradiation may be useful for the production of fermented meats.

키워드

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