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Advanced Food Processing

Subjects : industries, engineering
Instructions:
  • Answer 33 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Low frequency & long wave length






2. Which waves vary in frequency and are closer to Radio waves frequencies






3. The quantity of radiation that results in the absorption of 100 ergs per gram of food






4. Traditional unit of measuring the amount of energy absorbed by food






5. Determines the affinity of a food system to absorb microwaves






6. Dose required to kill bacterial spores?






7. Dose required to kill virus?






8. 100 RAD






9. Dose required to kill insects?






10. These rays have no penetration depth hence it will only achieve surface inactivation of microorganisms






11. Dose required to kill yeast and mold?






12. The food category - the purpose of irradiation - and the dose permitted in KGY






13. High frequency & short wave length






14. Pasteurization of herbs and spices






15. Killing insects and eggs






16. Is also used in limited extent in food irradiation.






17. What is the half life of Cobalt 60?






18. What kind of rays does Cobalt 60 emit?






19. Direct Effect- a bullet-like effect with high energy particles impacting the vital parts of the cell






20. Utilizing (IR) to achieve biological stability of food by inhibiting or minimizing spoilage reactions






21. What changes take place when energy is applied?






22. Made into an unstable isotope by neutron bombardment






23. Determines the amount of heat generated from the absorbed energy






24. Dose required to kill a man






25. Determines how far the MWs penetrate into the food and it is affected by the above two parameters plus others






26. 1000 GY






27. Describes a continuous range of radiation energy having an electric and a magnetic component






28. Food treated with ionizing radiation (IR) is said to be






29. The common source of energy in food irradiation






30. Indirect Effect- ionization of molecules that produces ion pairs (by knocking off an electron) and free radicals (by breaking bonds) result in chemical reactions that interrupt biological functions






31. Sprouting inhibition and






32. -the more complex the biological system is the less amount of IR required to induce changes






33. Gamma rays have high penetration capability







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