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






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






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






4. 100 RAD






5. Made into an unstable isotope by neutron bombardment






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






7. Sprouting inhibition and






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






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






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






11. Dose required to kill bacterial spores?






12. Pasteurization of herbs and spices






13. Dose required to kill a man






14. What is the half life of Cobalt 60?






15. Low frequency & long wave length






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






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






18. High frequency & short wave length






19. 1000 GY






20. What kind of rays does Cobalt 60 emit?






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






22. Dose required to kill virus?






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






24. What changes take place when energy is applied?






25. Dose required to kill insects?






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






27. The common source of energy in food irradiation






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






29. Dose required to kill yeast and mold?






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






31. Killing insects and eggs






32. Gamma rays have high penetration capability






33. 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