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FoodMicroLecture 15

Food Micro Midterm 3

QuestionAnswer
What are three reasons for a risk-based approach to managing food safety? Food safety is increasing in concern, food regulations are vague, consumer demand, surge in novel processing technologies.
Define Appropriate Level Of Protection (ALOP). Decision of what level of risk can be tolerated in the consumable.
In many situations, the ALOP or PHG is to have nearly ____ cases from a given pathogen-food combination. zero
Define Food Safety Objective (FSO). The maximum frequency and/or concentration of a microbiological hazard in a food at the time of consumption that provides the ALOP.
Define H0. The initial bio-burden of the raw materials of a product.
Define sum R. The cumulative reduction in the level of the hazard.
Define sum I. The cumulative increase in the level of the hazard.
What are the four risk management options for safe food? Minimize initial levels, reduce levels, minimize an increase in levels, food safety objective
What is an appropriate starting point for setting an FSO? The target treatment currently being used for C. botulinum.
What is the quantitative data preferred for H0? direct count of MPN
What type of microorganism serves as the target organism of concern? The organism which is most resistant to a specific lethal step.
What is the order of sensitivity of spores to peracetic acid? B. cereus > B. subtilis > C. botulinum
What are four different unit operations which can be used to inactivate microbial populations? Thermal, high pressure, microwave, irradiation, UV, chemical
What are two shortcomings of the deterministic approach? The variability of diverse and dynamic biological phenomena is ignored, considered is not given to uncertainty in data.
Probabilistic assessments describe each parameter as a _____. distribution of possible values
Created by: goberoi