Propose a confirmatory procedure that will determine if the microbial growth recovered from canned food that displays no evidence of spoilage is from the canned product itself or from laboratory contamination
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Propose a confirmatory procedure that will determine if the microbial growth recovered from canned food that displays no evidence of spoilage is from the canned product itself or from laboratory contamination
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- a) Microbial products can be classified in three major categories which related to the microorganism growth curve. By giving examples of product based on the three major categories, sketch the microbial growth and product formation curves. Describe the phases involves in the growing of microorganism for the products formation. List all references with proper citations.After a series of experiments, bacterial cultures were identified for disposal. How can these be properly decontaminated prior to disposal according to biosafety guidelines? METHOD:RATIONALE:What appropriate method should be used in controlling microbial growth in each of the following? 1. Chicken serum 2. Fresh goat milk 3. Nutrient broth 4. Paracetamol 5. Inoculation loob
- Outline the different physical and chemical methods of sterilization. Briefly describe how each method control microbial growthPlastic pipet tips for micropipettes are commonly supplied in packs of 100’s. Once the pack has been opened, contamination is assumed. How can sterility of the pipet tips be ensured prior to use in microbiological procedures? METHOD:RATIONALE:Aseptic technique refers to A) the microbial inoculum placed into a test tube or onto a Petri plate. B) a series of practices to avoid contamination. C) the autoclave and other sterilizing procedures. D) cleanliness in the laboratory.
- The close organoleptic examination (using the five senses) of a food sample may give valuable information as to the possible microorganisms involved in food spoilage, and which types to look for. ). Give an example of possible causative agents to test for. Why are you considering this microorganism as a possible causative agent?Describe microbial sampling procedures for solid foods suchas meat.Topic: Preparation of Microbial Suspension A Pure colony is needed for inoculation in sterile water, a small portion of culture media was included. Effect: Rationale:
- Identify the microorganism/ group of microorganisms involved in the spoilage of the following food: a.. Canned curdled evaporated milk b. Blue cottony growth on orangesDifferentiate between a pure culture, subculture, mixed culture,and contaminated culture. Define contaminant.Radiation when applied will be more effective on gram negatives bacteria than any other pathogen of interest in food. True False