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FoodMicroLecture 13
Food Micro Midterm 3
Term | Definition |
---|---|
Define low water activity foods. | Dried, desiccated, or low moisture foods which do not contain more than 25% moisture. |
Low water activity foods have an aw between ____ and ____. | 0-0.60 |
Intermediate water activity foods have an aw between ____ and ____. | 0.60-0.85 |
What are the three types of microbial hazards with low aw foods? | Vegetative cells, spores, mycotoxins |
In preserving foods by drying, the activity of microbes is _____. | inhibited |
____ ____ is one of the best known ways of preserving microbes. | Freeze drying |
T or F: Salmonella need to grow in order to cause illness. | False |
T or F: Salmonella cannot survive the drying process. | False |
T or F: As water activity decreases, heat resistance increases. | True |
Describe controlled wet cleaning. | Drying is completed following the use of wet cleaning methods (eg. alcohol-based sanitizers). |
Name three ways which outbreaks with low moisture foods can occur. | Inclusion of contaminated raw ingredients, insufficient processing, post-processing contamination. |
Name three ways to prevent Salmonella entry/spread in a processing facility. | Monitor airflow, pests, water, leaks. |
T or F: To prevent and minimize bacterial growth, wet cleaning should be used. | False |
Control elements: 1. prevent the ____ into the processing facility. | entry |
Control elements: 2. Enhance _____ practices. | hygienic |
Control elements: 3. Apply hygienic design to ______ and ______. | building, equipment |
Control elements: 4. Prevent/minimize _____ growth. | bacterial |
Control elements: 5. Control incoming ____ ____ levels. | raw ingredients |
Control elements: 6. Validate ______ control measures. | inactivation |
Control elements: 7. Establish ______ and corrective actions. | verification |