지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.1
- 수록면
- 155 - 161 (7page)
이용수
초록· 키워드
오류제보하기
This study developed predictive models to evaluate the kinetic behaviors of Bacillus cereus and Staphylococcus aureus in milk during storage at various temperatures. B. cereus and S. aureus (3 Log CFU/mL) were inoculated into milk and stored at $10^{\circ}C$, $15^{\circ}C$, $20^{\circ}C$, and $30^{\circ}C$, as well as $5^{\circ}C$, $15^{\circ}C$, $25^{\circ}C$, and $35^{\circ}C$, respectively, while bacterial populations were enumerated. The growth data were fitted to the modified Gompertz model to estimate kinetic parameters, including the maximum specific growth rate (${\mu}_{max}$; Log CFU/[$mL{\cdot}h$]), lag phase duration (LPD; h), lower asymptote ($N_0$; Log CFU/mL), and upper asymptote ($N_{max}$; Log CFU/mL). To describe the kinetic behavior of B. cereus and S. aureus, the parameters were fitted to the square root model as a function of storage temperature. Finally, the developed models were validated with the observed data, and Bias (B) and Accuracy (A) factors were calculated. Cell counts of both bacteria increased with storage time. Primary modeling yielded the following parameters; ${\mu}_{max}$: 0.14-0.75 and 0.06-0.51 Log CFU/mL/h; LPD: 1.78-14.03 and 0.00-1.44 h, $N_0$: 3.10-3.37 and 2.09-3.07 Log CFU/mL, and $N_{max}$: 7.59-8.87 and 8.60-9.32 Log CFU/mL for B. cereus and S. aureus, respectively. Secondary modeling yielded a determination of coefficient ($R^2$) of 0.926.0.996. B factors were 1.20 and 0.94, and A factors were 1.16 and 1.08 for B. cereus and S. aureus, respectively. Thus, the mathematical models developed here should be useful in describing the kinetic behaviors of B. cereus and S. aureus in milk during storage.
목차
등록된 정보가 없습니다.
참고문헌 (30)
참고문헌 신청
Adesiyun, A. A. / 1995 / Microbiological quality of raw cow’'s milk at collection centers in Trinidad / J. Food Protect 58:139~146
Altekruse, S. F. / 1998 / Cheese-associated outbreaks of human illness in the United States, 1973 to 1992: Sanitary manufacturing practices protect consumers / J. Food Protect 61:1405~1407
Asperger, H. / 2002 / Staphylococcus aureus. In: Encyclopaedia of dairy sciences / Academic Press :2563~2569
Baird-Parker, T. C. / 2000 / Staphylococcus aureus. In: The microbiological safety and quality of food / Aspen Publishers, Inc :1317~1330
Baranyi, J. / 1995 / Mathematics of predictive food microbiology / Int. J. Food Microbiol 26:199~218
Altekruse, S. F. / 1998 / Cheese-associated outbreaks of human illness in the United States, 1973 to 1992: Sanitary manufacturing practices protect consumers / J. Food Protect 61:1405~1407
Asperger, H. / 2002 / Staphylococcus aureus. In: Encyclopaedia of dairy sciences / Academic Press :2563~2569
Baird-Parker, T. C. / 2000 / Staphylococcus aureus. In: The microbiological safety and quality of food / Aspen Publishers, Inc :1317~1330
Baranyi, J. / 1995 / Mathematics of predictive food microbiology / Int. J. Food Microbiol 26:199~218
이 논문의 저자 정보
최근 본 자료
댓글(0)
0