PREDICTIVE MICROBIOLOGY FOR MONITORING SPOILAGE OF DAIRY-PRODUCTS WITH TIME-TEMPERATURE INTEGRATORS

被引:113
|
作者
FU, B [1 ]
TAOUKIS, PS [1 ]
LABUZA, TP [1 ]
机构
[1] UNIV MINNESOTA,DEPT FOOD SCI & NUTR,1334 ECKLES AVE,ST PAUL,MN 55108
关键词
D O I
10.1111/j.1365-2621.1991.tb04736.x
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Time/temperature integrators (TTI) have a potential for monitoring time-temperature history of perishable foods, including dairy products. To correlate the end of shelf life of dairy products with different TTI's, kinetic data for growth of a dairy spoilage microorganism was obtained. Both Arrhenius and square root equations were used to model the growth of Pseudomonas fragi. A significant negative history effect was observed for P. fragi growth rate whereas history effect was positive on the lag phase, under certain nonisothermal conditions. A correlation scheme of P. fragi growth was developed with the TTI response. The application of TTI's for dairy products is feasible despite the history effects.
引用
收藏
页码:1209 / 1215
页数:7
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