预报微生物学及其在食品货架期预测领域的研究进展

预报微生物学研究食品腐败的过程和腐败优势细菌的消长变化情况 ,该领域获得的数值信息为食品货架期监测预报系统的开发打下了坚实的基础。为了准确预报产品的货架期 ,必须考虑整个食品微生态系统。本文略述了与食品腐败相关的微生物学研究 ,并引入了特定腐败菌的概念。在此基础上 ,讨论了预报微生物学在食品货架期预测领域面临的挑战和研究进展 ,并以腐败假单胞菌为例 ,简要介绍了预报模型的建立步骤和货架期预报系统的开发过程。

Predictive microbiology and its advance on the field of food shelf life prediction

Predictive microbiology aims to summarize the probable behavior of predominant spoilage bacteria and the spoilage processes in food. The quantitative knowledge obtained in this field provides a sound basis for the development of devices with which the loss of food shelf life was monitored during storage time. To predict shelf life accurately, it is necessary to consider the microbial ecology of the food system. This paper briefly reviewed the aspects of microbiological research relevant to the spoilage of food and introduced the concept of specific spoilage organisms (SSO). The problems and solutions emerged in the shelf life prediction field were also discussed. The basic steps of modeling and the key developing processes of shelf life prediction system were exemplified with modeling program of Pseudomonas putrefaciens as an example.