Applications of Time-Temperature Integrator (TTI) as a Quality Indicator of Grounded Pork Patty

다국어 초록 (Multilingual Abstract)

Time-temperature integrators (TTIs) are simple and cost-efficient tools which may be used to predict food quality. Enzy-matic TTIs are devised to indicate food quality in the form of color alterations from green to red, based on the cumulative impacts of temperature and time period on the enzymatic reactions. In this study, the quality of ground beef patties was investigated for the parameters of pH levels, color, VBN, water holding capacity, and total microbial counts, depending on various storage temperatures (5, 15, and 25o C). TTIs were attached to the surface of the ground beef patties in order to eval-uate the degree of correlating colorimetric changes with the determined quality parameters. Through the Arrhenius equa-tion, activation energy and constant reaction rates of TTI, VBN, and total microbial counts were calculated as to observe the relationship between enzymatic reactions of the TTI and food spoilage reactions of the ground beef patties. VBN and total microbial counts were already increased to reach decomposition index (VBN: 20, total microbial count: 7-8 Log CFU/g) of meat at middle stage of storage period for each storage temperature. Although activation energy of TTI enzymatic reactions and food spoilage reactions of the ground beef patties were similar, the change of TTI color was not a coincidence for food spoilage at 5o C and 15o C of storage temperature. It was suggested that TTI should be designed individually for storage tem-perature, time, type of meat, or decomposition index of meat.

참고문헌 (Reference)

1 박한조, "육류의 품질과 Time Temperature Integrator(TTI) 온도의존성에 대한 수학적 Simulation" 한국축산식품학회 29 (29): 349-355, 2009

2 신희영, "신선도표시계를 이용한 쇠고기 및 돼지고기의 저장 중신선도 측정 및 품질 변화" 한국식품과학회 38 (38): 325-330, 2006

3 진상근, "수출용 진공포장 돼지고기의 저장기간 중 pH, 육즙손실 및 미생물의 변화" 한국축산식품학회 22 (22): 201-205, 2002

4 변고은, "쇠고기 저장 중 이취발생에 대한 Indicator 탐색" 한국축산식품학회 29 (29): 325-333, 2009

5 김병숙, "소고기 분쇄육의 냉장 중 품질에 미치는 항산화제의 효과" 한국식품영양학회 24 (24): 422-433, 2011

6 정근기, "고급 및 저급 한우육의 저장중 품질 특성" 한국식품과학회 38 (38): 10-15, 2006

7 Taoukis, P. S., "Use of time-temperature integrators and predictive modelling for shelf life control of chilled fish under dynamic storage conditions" 53 : 21-31, 1999

8 Ellouze, M., "Use of global sensitivity analysis in quantitative microbial risk assessment: Application to the evaluation of a biological time temperature integrator as a quality and safety indicator for cold smoked salmon" 28 : 755-769, 2011

9 Orta-Ramirez, A., "Thermal inactivation of pathogens and verification of adequate cooking in meat and poultry products. In: Advances in Food and Nutrition Research" Academic Press 147-194, 2002

10 Jeremiah, L. E, "The influence of storage temperature and storage time on color stability, retail properties and case-life of retail-ready beef" 34 : 815-826, 2001

11 Giannakourou, M. C., "Systematic application of time temperature integrators as tools for control of frozen vegetable quality" 67 : 2221-2228, 2002

12 Holley, R. A., "Static, controlled (CO2) atmosphere packaging of retail ready pork" 59 : 1296-1301, 1994

13 Labuza, T. P, "Shelf-life dating of foods" Westport, Food and Nutrition Press 1982

14 Kim, M. J., "Selection of an optimum pH-indicator for developing lactic acid bacteria-based time-temperature integrators (TTI)" 113 : 471-478, 2012

15 Van Loey, A., "Quantitative evaluation of thermal processes using time-temperature integrators" 7 : 16-26, 1996

16 Kim, K., "New enzymatic timetemperature integrator (TTI) that uses laccase" 113 : 118-123, 2012

17 Smolander, M., "Monitoring of the quality of modified atmosphere packaged broiler chicken cuts stored in different temperature conditions. A. Time-temperature indicators as quality-indicating tools" 15 : 217-229, 2004

18 Taoukis, P. S., "Modelling the use of timee temperature indicators in distribution and stock rotation. In: Food Process Modelling" CRC Press 402-431, 2001

19 Huff-Lonergan, E, "Mechanisms of water-holding capacity of meat: The role of postmortem biochemical and structural changes" 71 : 194-204, 2005

20 Korean Food Standards Codex, "Korea Food & Drug Administration"

21 Claeys, W. L., "Intrinsic time temperature integrators for heat treatment of milk" 13 : 293-311, 2002

22 Hong, G. P., "Effect of glucono-δ-lactone and κ-carrageenan combined with high pressure treatment on the physico-chemical properties of restructured pork" 79 : 236-243, 2008

23 Wanihsuksombat, C., "Development and characterization of a prototype of a lactic acid-based time-temperature indicator for monitoring food product quality" 100 : 427-434, 2010

24 Chun, J. Y., "Changes in TTI-value of model beef depending on time-temperature and dimension" Korean Society for Food Science of Animal Resources 2009

25 Bobelyn, E., "Applicability of an enzymatic time temperature integrator as a quality indicator for mushrooms in the distribution chain" 42 : 104-114, 2006

26 Vaikousi, H., "Applicability of a microbial time temperature indicator (TTI) for monitoring spoilage of modified atmosphere packed minced meat" 133 : 272-278, 2009

27 Park, H. R., "Adjustment of Arrhenius activation energy of laccase-based time-temperature integrator (TTI) using sodium azide" 32 : 615-620, 2013

28 Bruckner, S., "A predictive shelf life model as a tool for the improvement of quality management in pork and poultry chains" 29 : 451-460, 2013