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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. Gamma rays have high penetration capability






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






3. What is the half life of Cobalt 60?






4. Made into an unstable isotope by neutron bombardment






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






6. Pasteurization of herbs and spices






7. What kind of rays does Cobalt 60 emit?






8. Dose required to kill a man






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






10. Dose required to kill virus?






11. The common source of energy in food irradiation






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






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






14. 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






15. Sprouting inhibition and






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






17. Dose required to kill bacterial spores?






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






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






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






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






22. What changes take place when energy is applied?






23. Low frequency & long wave length






24. Killing insects and eggs






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






26. Dose required to kill insects?






27. 1000 GY






28. 100 RAD






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






30. High frequency & short wave length






31. Dose required to kill yeast and mold?






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






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