Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Physicochemical and Sensory Characteristics of Vanilla Ice Cream Treated by Gamma Irradiation

감마선 조사에 의한 바닐라 아이스크림의 물리화학적 및 관능적 특성 평가

  • Kim, Hyun-Joo (Team for Radiation Food Science and Biotechnology, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Han, In-Jun (Team for Radiation Food Science and Biotechnology, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Choi, Jong-Il (Team for Radiation Food Science and Biotechnology, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Song, Beom-Seok (Team for Radiation Food Science and Biotechnology, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Kim, Jae-Hun (Team for Radiation Food Science and Biotechnology, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Ham, Jun-Sang (Animal Products Processing Division, National Livestock Research Institute, Rural Development Administration) ;
  • Lee, Wan-Gyu (College of Veterinary Medicine, Chungbuk National University) ;
  • Yook, Hong-Sun (Department of Food and Nutrition, Chungnam National University) ;
  • Shin, Mee-Hye (School of Food Science, Eulji University) ;
  • Byun, Myung-Woo (Team for Radiation Food Science and Biotechnology, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute) ;
  • Lee, Ju-Woon (Team for Radiation Food Science and Biotechnology, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute)
  • 김현주 (한국원자력연구원 정읍방사선과학연구소 방사선식품생명공학연구실) ;
  • 한인준 (한국원자력연구원 정읍방사선과학연구소 방사선식품생명공학연구실) ;
  • 최종일 (한국원자력연구원 정읍방사선과학연구소 방사선식품생명공학연구실) ;
  • 송범석 (한국원자력연구원 정읍방사선과학연구소 방사선식품생명공학연구실) ;
  • 김재훈 (한국원자력연구원 정읍방사선과학연구소 방사선식품생명공학연구실) ;
  • 함준상 (농촌진흥청 축산과학원) ;
  • 이완규 (충북대학교 수의과대학) ;
  • 육홍선 (충남대학교 식품영양학과) ;
  • 신미혜 (을지대학교 식품과학부) ;
  • 변명우 (한국원자력연구원 정읍방사선과학연구소 방사선식품생명공학연구실) ;
  • 이주운 (한국원자력연구원 정읍방사선과학연구소 방사선식품생명공학연구실)
  • Published : 2008.03.30
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Abstract

This study evaluated the physicochemical and sensory characteristics of vanilla ice cream treated with gamma irradiation. The general composition of the vanilla ice cream used for the study was 45.4-53.3% moisture, 5.5-5.9% fat and 3.9-4.1% protein, and these values did not change following gamma irradiation. The Hunter L, a and b values were slightly decreased following gamma irradiation. The fatty acid composition of the ice cream included caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid and stearic acid, and there was no detectable change following irradiation. There was no significant difference in TBARS (2-thiobarbituric acid reactive substances) values between non-irradiated and irradiated samples at a dose of 3 kGy or less (p<0.05). Sensory evaluation indicated that gamma-irradiated vanilla ice cream did not show any difference in color relative to non-irradiated ice cream. However, gamma irradiation did affect the flavor, taste and overall acceptability of ice cream at doses above 3 kGy. These results indicate that gamma irradiation at 3 kGy is an effective treatment for sustaining the physicochemical characteristics of vanilla ice cream with minimal changes in sensory characteristics, though further studies should be carried out to reduce the deterioration of sensory qualities induced by gamma irradiation.

본 연구는 면역력이 약한 영유아 및 면역결핍환자를 위한 아이스크림을 개발하기 위하여 시판중인 바닐라 아이스크림의 품질을 여러 선량의 감마선 조사 후에 평가하였다. 감마선 조사에 의해 바닐라 아이스크림의 일반성분(수분, 지방 및 단백질) 및 지방산의 함량변화는 유의적으로 차이가 없었다. 또한 감마선 조사에 의해 바닐라 아이스크림의 명도, 적색도 및 황색도는 약간 감소하였고, TBARS를 이용한 지질산패도를 측정한 결과 5 kGy 이상의 조사선량에서 산패도가 증가하였다. 감마선 조사에 의한 바닐라 아이스크림의 관능검사 결과 색 변화는 유의적으로 차이가 없었으나 향, 맛, 전체적인 기호도가 조사선량에 따라 감소하였으며, 특히 5 kGy 이상에서는 심각한 차이를 보였다. 따라서 바닐라 아이스크림의 품질변화를 최소화 하기 위한 최적조사선량은 3 kGy 이하인 것으로 판단되며 감마선 조사기술과 특정 향 및 항산화제 첨가 등의 병용처리를 통한 품질 개선 실험이 필요하다고 판단된다.

Keywords

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