Journal of Dairy Science and Biotechnology

  • 제33권1호
  • /
  • Pages.75-82
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  • 2015
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  • 2733-4554(pISSN)
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  • 2733-4562(eISSN)
한국낙농식품응용생물학회 (Korean Society of Dairy Science and Biotechnology)
권호 표지

키토산을 첨가한 마리보 치즈의 품질 특성

Effect of Chitosan-Added on the Quality Characteristics of Maribo Cheese

  • 이재성 (순천대학교 생명산업과학대학 동물자원과학과) ;
  • 정유태 (순천대학교 생명산업과학대학 동물자원과학과) ;
  • 곽해수 (세종대학교 생명과학대학 식품공학부) ;
  • 배인휴 (순천대학교 생명산업과학대학 동물자원과학과)
  • Lee, Jai Sung (Dept. of Animal Science and Technology, Sunchon National University) ;
  • Jeong, Yu Tae (Dept. of Animal Science and Technology, Sunchon National University) ;
  • Kwak, Hae Soo (Dept. of Food Science and Technology, Sejong University) ;
  • Bae, Inhyu (Dept. of Animal Science and Technology, Sunchon National University)
  • 투고 : 2015.03.05
  • 심사 : 2015.03.26
  • 발행 : 2015.03.31
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초록

본 연구는 기능성 성분으로 알려진 Chitosan 분말을 온화한 향미의 마리보 치즈와 접목시킴으로써 기능성 반경성 치즈를 개발하고자 시도되었다. 이를 위해 Chitosan 분말을 일반 Chitosan 분말(CP)과 Nano-Chitosan 분말(NCP)로 나눈 두 개의 처리구로 하여 마리보 치즈 커드에 각각 0.2%와 0.5% 함량을 달리하여 첨가한 치즈를 제조하여 숙성 중 품질 특성과 소비자 기호도를 조사하였다. Chitosan을 첨가하여 제조한 마리보 치즈를 24주간 숙성하면서 숙성 중 유산균 수, pH, 수용성 질소화합물(WSN) 함량, Total phenolic acid 함량, 지방산패도 변화 등 품질 특성을 조사하였다. CP와 NCP를 첨가한 마리보 치즈의 숙성 중 변화에서 pH는 처리구별 유의적 차이 없이 숙성이 경과에 따라 상승하는 결과를 보였으며, NCP 0.2%와 0.5% 첨가구에서 높아지는 결과를 나타내었다. 유산균은 모든 처리구가 숙성이 경과될수록 감소하는 결과를 나타내었지만, Chitosan이 첨가된 마리보 치즈는 대조구에 비해 Chitosan이 가지고 있는 항균성으로 인해 숙성 중 유의적으로 유산균 수가 더 감소 되었다(p<0.05). WSN의 변화는 숙성 전반에 걸쳐 시험구간 유의적 차이 없이 높아지는 경향을 보였으며, NCP 0.2% 첨가구에서 가장 높은 결과를 보였다. 지방산패도는 숙성이 진행될수록 모든 시험구에서 지방산패도가 증가함을 나타내었으며, 숙성 0주차와 4주차에서는 실험구 간의 유의적 차이는 나타나지 않다가 숙성 8주차부터는 대조구보다 Chitosan 첨가구에서 높은 지방산패도를 나타내었다(p<0.05). TP 함량은 4주차를 제외한 모든 구간에서 대조구가 높은 TP 함량을 나타내었다. 치즈의 소비자 기호도 조사에서도 NCP 0.2% 첨가구에서 전반적인 수용도(54%), 향미(65%), 외관(67%) 그리고 구매의사(70%) 등이 비교적 긍정적으로 나타났다. 이상의 결과를 종합하면, CP와 NCP의 첨가가 마리보 치즈의 이화학적 특성을 유지하면서 치즈의 품질상의 특성에 큰 영향을 미치지 않았다. 따라서 향후 키토산을 기능성 소재로 적용하여 마리보 치즈를 제조할 경우, CP보다는 NCP 0.2% 첨가량을 적용하면 최적 품질의 기능성 마리보 치즈 개발이 가능할 것으로 사료되었다.

Chitosan provides beneficial effects such as decrease in cholesterol, weight loss, and antioxidative effects. The manufacture of Maribo cheese containing powdered chitosan (CP) or nanopowdered chitosan (NCP) is not yet established. Thus, this study was conducted to determine the effect of CP and NCP on Maribo cheese's physicochemical properties. The curd was added with 0.2 and 0.5% of CP and NCP, respectively, after the second whey drainage. The pH changed and the lactic acid bacterial population decreased in all treatments. Additionally, WSN and TBA gradually increased during the ripening of cheese. The TP of control cheese was higher than that of another group. On the basis of the obtained results, consumer preference test on overall acceptability of 0.2% NCP was good-41%, great good 13%. It was concluded that the quality of Maribo cheese was not affected by adding chitosan. Furthermore, 0.2% NCP was preferred during cheese ripening and observed the possibility of functional cheese than another group.

키워드

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