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Food Storage Powerpoint

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Uhlee's Internship Capstone Activity

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Food Storage Powerpoint

  1. 1. By Uhlee Oh Advisor: Dr. Ladapo
  2. 2. <ul><li>Of the 2.2 billion children worldwide, approximately half live in poverty, and 15 million children die of hunger annually. </li></ul>
  3. 3. <ul><li>For the price of one missile, a school full of ravenous children could eat lunch every day for five years. </li></ul>=
  4. 4. <ul><li>Even in our own country, 36 million Americans live in poverty and struggle to get enough food. </li></ul>
  5. 5. <ul><li>According to a study by the U.S. Department of Agriculture, 96 billion pounds of food are wasted in America each year! That’s 3,044 pounds each second! </li></ul>
  6. 6. <ul><li>An average American household wastes 14% of their food purchases. 15% of that includes products still within their expiration date but never opened. </li></ul>
  7. 8. However, according to The Society of St. Andrew, a Christian hunger relief ministry , “there is no excuse for anyone to go hungry in America when so much food goes to waste!”
  8. 9. Timothy W. Jones, an anthropologist at the UA Bureau of Applied Research in Anthropology, estimates that reducing food waste by half could reduce adverse environmental impacts by 25% through reduced landfill use, soil depletion and applications of fertilizers, pesticides and herbicides. - www.news-medical.net
  9. 10. <ul><li>Make a shopping list of food items you need, and buy only what is on the list. </li></ul><ul><li>Serve small amounts, and let everyone come back for seconds. </li></ul><ul><li>Use up today’s leftovers for tomorrow’s meals. </li></ul><ul><li>Ask for a to-go box at restaurants when you cannot finish your plate. </li></ul><ul><li>Or….. </li></ul>
  10. 11. Properly store your produce purchases!!
  11. 12. Conditions for Microbial Growth (and also for enzyme action) <ul><li>1) organic food (proteins, carbohydrates, fats) </li></ul>2) suitable temperature 3) moisture (water) 4) [in some cases] air 5) suitable pH http://www.biotopics.co.uk/pot/foodsp.html
  12. 13. Problem Statement: Which methods of food storage preserve fresh fruits and vegetables the longest? - Unwashed - Prewashed - Ziploc-bagged - Plated - Room temperature - Refrigerated Hypothesis: If the produce are unwashed, ziploc-bagged, and refrigerated, then they will last the longest.
  13. 14. <ul><li>Materials Needed: </li></ul><ul><li>4 unripe bananas </li></ul><ul><li>32 strawberries </li></ul><ul><li>8 celery stalks </li></ul><ul><li>8 carrots </li></ul><ul><li>a bundle of parsley </li></ul><ul><li>18 ziploc bags </li></ul><ul><li>18 plates </li></ul><ul><li>refrigerator </li></ul>
  14. 15. Room-Temperature Produce
  15. 16. Refrigerated Produce
  16. 17. Observations
  17. 18. Data Day PRODUCE Unwashed Pre-Washed Bagged Plated Bagged Plated Room Temp. Refrigerated Room Temp. Refrigerated Room Temp. Refrigerated Room Temp. Refrigerated 1 2 3 4 5 6
  18. 19. Results
  19. 20. Results
  20. 21. Results
  21. 22. Unwashed Pre-Washed
  22. 23. Results
  23. 24. Results
  24. 25. Results
  25. 26. Unwashed Pre-Washed
  26. 27. Results
  27. 28. Results
  28. 29. Results
  29. 30. Unwashed Pre-Washed
  30. 31. Results
  31. 32. Results
  32. 33. Results
  33. 34. Unwashed Pre-Washed
  34. 35. Unwashed, Plated, Room-Temperature Produce
  35. 36. Pre-Washed, Bagged, Refrigerated Produce
  36. 37. Results
  37. 38. Room Temperature Refrigerated
  38. 39. <ul><li>Does refrigerating or placing a produce in room temperature affect the rate at which food spoils? </li></ul><ul><li>Does bagging or plating a produce affect the rate at which food spoils? </li></ul><ul><li>Does pre-washing or not washing a produce affect the rate at which food spoils? </li></ul>Evaluation Questions According to this experiment, pre-washing or not washing a produce does not affect the spoilage rate within six days. Yes. Bagging a produce inhibits the spoilage rate of the produce. Yes. Refrigerating a produce slows down the rate at which food spoils.
  39. 40. In conclusion, refrigerating and bagging fresh produce in a Ziploc bag prolong their life-span, resulting in less food waste due to improper and careless food storage methods.
  40. 41. YOU CAN MAKE A DIFFERENCE! Keeping good food storage methods in mind and adapting good eating habits can help reduce food waste due to careless reasons. Instead, that extra food can go to the millions of people living in poverty around the world.
  41. 42. References Food Spoilage and Additives http://www.biotopics.co.uk/pot/foodsp.html The Society of St. Andrew http://www.endhunger.org/ Causes of Poverty http://www.globalissues.org/TradeRelated/Facts.asp News-Medical.net www.news-medical.net National Center for Home Food Preservation http://www.uga.edu/nchfp/index.html

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