What is the use of heat to sterilize food products?
- is the use of heat to sterilize food products. - is a process that uses intense cold to kill microorganisms on foods. - is the use of heat to reduce numbers of pathogenic/spoilage bacteria in a food item to a safe level. - is a process that uses short bursts of radiation to kill microorganisms on foods.
What are the benefits of heat treatment for food poisoning?
- prevent browning. - inhibit the germination of Clostridium botulinum endospores. - prevent carcinogen formation. - make the food more acidic. - destroy cell membranes of potential pathogens inhibit the germination of Clostridium botulinum endospores. Upon heat treatment, bacteria die at a constant proportion. T/F True
How to do a safe heat treating operation?
The following procedures are suggested for a safe heat treating operation. 1. Wear heat-resistant protective clothing, gloves, safety glasses, and a face shield to prevent exposure to hot oils, which can burn skin. 3. Make sure that there is enough coolant for the job.
What are the different types of radiation used in food safety?
-cidal. -cillin. -tion. -side. -cidal. Gamma irradiation - has not been approved for use on food. - can be used to either sterilize or pasteurize, depending on the dose of radiation. - leaves some radioactive particles in the treated substance. - usually kills by generating heat and denaturing proteins.
What is the process of heating a food to a specific temperature for a definite length of time?
The process of heating a food, usually liquid, to a specific temperature for a definite length of time, and then cooling it immediately is known as. Pasteurization. The process applied to fruits and vegetables to inactivate natural food enzymes is known as. blanching.
What is food technology?
Food Technology is a misnomer for Food Science. Food Technology is the application of Food Science to manufacture and distribute safe, nutritious ans wholesome food. Food Technology is the application of Food Science to manufacture and distribute safe, nutritious ans wholesome food.
How long can you keep produce at room temperature?
hold the produce or meat at room temperature so that the metabolic reactions continue to progress for at least 3 days. elevate the temperature of the produce or meat as quickly as possible to assure that quality is maintained. cool the produce or meat as soon as possible to extend the shelf-life. Fruit stored under refrigeration conditions ...
How to extend shelf life of meat after harvest?
After the harvest of vegetables or the slaughter of animals it is necessary to. cool the produce or meat as soon as possible to extend the shelf-life. wait for a significant period of time before placing under refrigerated conditions. hold the produce or meat at room temperature so that the metabolic reactions continue to progress ...
What is the process of sterilizing food?
Pasteurization. - is the use of heat to sterilize food products. - is a process that uses intense cold to kill microorganisms on foods. - is the use of heat to reduce numbers of pathogenic/spoilage bacteria in a food item to a safe level.
What is the function of nitrites in processed foods?
The most important function of nitrites in processed foods is to. - prevent browning. - inhibit the germination of Clostridium botulinum endospores. - prevent carcinogen formation. - make the food more acidic. - destroy cell membranes of potential pathogens. inhibit the germination of Clostridium botulinum endospores.
Who regulates the radiation used to irradiate food?
The Food and Drug Administration (FDA) is responsible for regulating the sources of radiation that are used to irradiate food. The FDA approves a source of radiation for use on foods only after it has determined that irradiating the food is safe.
Why sterilize food?
Sterilized foods are useful in hospitals for patients with severely impaired immune systems, such as patients with AIDS or undergoing chemotherapy. Foods that are sterilized by irradiation are exposed to substantially higher levels of treatment than those approved for general use.
What is the FDA requirement for irradiated foods?
The FDA requires that irradiated foods bear the international symbol for irradiation. Look for the Radura symbol along with the statement “Treated with radiation” or “Treated by irradiation” on the food label. Bulk foods, such as fruits and vegetables, are required to be individually labeled or to have a label next to the sale container.
Why do we need to store irradiated food?
Irradiated foods need to be stored, handled, and cooked in the same way as non-irradiated foods, because they could still become contaminated with disease-causing organisms after irradiation if the rules of basic food safety are not followed.
How does ionizing radiation affect food?
Food irradiation (the application of ionizing radiation to food) is a technology that improves the safety and extends the shelf life of foods by reducing or eliminating microorganisms and insects. Like pasteurizing milk and canning fruits and vegetables, irradiation can make food safer for the consumer. The Food and Drug Administration (FDA) ...
What is the purpose of irradiating food?
Irradiation can serve many purposes. Prevention of Foodborne Illness – to effectively eliminate organisms that cause foodborne illness, such as Salmonella and Escherichia coli ( E. coli ). Preservation – to destroy or inactivate organisms that cause spoilage and decomposition and extend the shelf life of foods.
What is the purpose of irradiating tropical fruits?
Control of Insects – to destroy insects in or on tropical fruits imported into the United States. Irradiation also decreases the need for other pest-control practices that may harm the fruit. Delay of Sprouting and Ripening – to inhibit sprouting (e.g., potatoes) and delay ripening of fruit to increase longevity.
What are the best ways to prevent burns from heat treatment?
The following procedures are suggested for a safe heat treating operation. 1. Wear heat-resistant protective clothing, gloves, safety glasses, and a face shield to prevent exposure to hot oils, which can burn skin. 2.
How hot should a furnace be for heat treating?
Also, preheat the tongs before grasping the heated sample part. 2. Preheat the furnace to 1200 degrees Fahrenheit.
What to do before taking materials out of a liquid carburizing pot?
Before taking materials out of the liquid carburizing pot, make sure that the tongs are not wet and that they are the correct tongs for the job. 9. Make sure that an appropriate fungicide or bacterial inhibitor has been mixed into the quenching liquid. 10. When quench tanks are not being used, always cover them.
What temperature to heat treat steel?
O-1 happens to have a hardening temperature of 1450 – 1500 degrees Fahrenheit.
Does coolant absorb heat?
Coolant will absorb heat given off by the metal as it is cooling, but if there is insufficient coolant, the metal will not cool at the optimal speed. 4. Make sure that there is sufficient ventilation in the quenching areas in order to maintain desired oil mist levels. 5.