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논문 기본 정보

자료유형
학술저널
저자정보
Park, Jung-Min (Department of Food Science and Biotechnology of Animal Resources, Konkuk University) Shin, Jin-Ho (Department of Food Science and Biotechnology of Animal Resources, Konkuk University) Bak, Da-Jeong (Department of Food Science and Biotechnology of Animal Resources, Konkuk University) Kim, Na-Kyeong (Department of Food Science and Biotechnology of Animal Resources, Konkuk University) Lim, Kwang-Sei (R&D Center, Maeil Dairies Co. Ltd.) Yang, Cheul-Young (Department of Food Technology and Services, Eulji University) Kim, Jin-Man (Department of Food Science and Biotechnology of Animal Resources, Konkuk University)
저널정보
한국축산식품학회 한국축산식품학회지 한국축산식품학회지 제34권 제2호
발행연도
2014.1
수록면
245 - 251 (7page)

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The aim of this study was to estimate the shelf life of butter and cheese products, with shelf life being a guide used to determine the storage period of food before deterioration. Butter and cheese samples stored at $10^{\circ}C$ and $15^{\circ}C$ had a shelf life of 221 d, while those stored at $25^{\circ}C$ and $35^{\circ}C$ had a shelf life of 109 d. Quality changes, including total cell count, coliform counts, Listeria monocytogenes counts, acid value, moisture content, pH, acidity and overall sensory evaluation, were monitored. In order to pass the overall sensory evaluation, a quality score of 5 points on a 9-point scale was required. For other quality criteria, legal quality limits were established based on the "Process Criteria and Ingredient Standard of Livestock Products" by the Animal, Plant and Fisheries Quarantine and Inspection Agency (Republic of Korea). The nonlegal quality limit was estimated by regression analysis between non-quality criteria (y) and overall sensory evaluation (x). The shelf life was estimated based on the number of days that the product passed the quality limit of the quality criteria. The shelf life of samples stored at $10^{\circ}C$, $15^{\circ}C$, $25^{\circ}C$ and $35^{\circ}C$ was 21.94, 17.18, 6.10 and 0.58 mon, respectively, for butter and 10.81, 9.47, 4.64 and 0.20 mon, respectively, for cheese.

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