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KMID : 1007520090180051243
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Food Science and Biotechnology
2009 Volume.18 No. 5 p.1243 ~ p.1252
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Development of Convenient Software for Online Shelf-life Decisions for Korean Prepared Side Dishes Based on Microbial Spoilage
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Seo II
An Duck-Soon
Lee Dong-Sun
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Abstract
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User-friendly software was developed to determine the shelf-life of perishable Korean seasoned side dishes in real time based on growth models of spoilage and pathogenic microorganisms. In the program algorithm, the primary spoilage and fastest-growing pathogenic organisms are selected according to the product characteristics, and their growth is simulated based on the previously monitored or recorded temperature history. To predict the growth of spoilage organisms with confidence limits, kinetic models for aerobic bacteria or molds/yeasts from published works are used. Growth models of pathogenic bacteria were obtained from the literature or derived with regression of their growth rate data estimated from established software packages. These models are also used to check whether the risk of pathogenic bacterial growth exceeds that of food spoilage organisms. Many example simulations showed that the shelf-lives of the examined foods are predominantly limited by the growth of spoilage organism rather than by pathogenic bacterial growth.
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KEYWORD
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shelf-life determination, food spoilage, food safety, temperature history, real-time monitoring
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