CHEM 181 MIDTERM 2 NOTES.pdf - Shalom Chianu Notes Topic 5 Food Additives Lesson 1 Food additives I Video 1 \u2022 Billboard in Halifax with caption

CHEM 181 MIDTERM 2 NOTES.pdf - Shalom Chianu Notes Topic 5...

This preview shows page 1 - 3 out of 73 pages.

Shalom Chianu Notes. Topic 5: Food Additives Lesson 1: Food additives I Video 1 Billboard in Halifax with caption: “Made with no caffeine, sodium or scientists”. o However, scientists make sure our food is actually safe to consume French newspaper: “Toxic wax on foods and vegetables” o Wax added to apples and other fruits and vegetables o Apple picked – washed to remove potential residue (e.g. pesticide residue) however in the process, its natural wax is removed § Wax important because it prevents the fruit from drying out § Protect from bruising during shipping and increase shelf life o Carnauba wax – same wax used in shoe polish o There is also beeswax, shellac, candelilla wax Morpholine – used to apply wax, not toxic. o Concern that in body, converts to nitroso-morpholine which is carcinogenic o Only happens when amounts are very large ; amount used in fruits minimal o Health Canada says amount present in apple coating is not a risk to health Nitrates – naturally occurring in the cabbage o Forms nitrosamines which is potentially carcinogenic as well French newspaper – correction on page 5 ( “it’s difficult to prove the substance is carcinogenic”), however the headline is on page 1 – lie draws in people (media) Aldous Huxley – “an unexciting truth often eclipsed by a thrilling lie” Video 2 Canadian Food Inspection Agency – organizations that control food quality Wine of the romans were fortified with lead acetate to make it sweeter Adding copper salts to make vegetables greener and more appealing Plaster of Paris (CaSO4) – add to flour to make bread rise o Baker ran out of plaster of Paris o Decided to instead use Arsenic As2O3 as it was a white powder– dangerous Nature contains number of toxic chemicals o Bitter almonds, fruit seeds, cassava roots, lima beans all contain cyanide o Make sure foods are properly prepared to remove cyanide Sassafras leaves – used as cleansing agent for those that believe in health food stores o Contains potential carcinogen – safrole/shikimole (banned from root) Chemicals needed in our food – not a dirty word o We’re made of chemicals, need those present in food to replenish natural occurring chemicals Wileswood Popcorn o Contains genuine popcorn o Pure vegetable oil
Image of page 1
Shalom Chianu Notes. o Natural salt o Real artificial colour – full of chemicals Video 3 Chicken Noodle Soup o #1 ingredient: Wheat Noodles o #2 salt – this is a concern Salt – take in too much salt in developed world. Recommended intake 2.0g/day o Global average: 3.95g/day o Canada: 3.4g/day o Kazakhstan: 6.0g/day o Kenya: 1.5g/day Next to sugar, salt is the most widely added ingredient to food o In Canada, sugar and salt are not classified as food additives, in the US, they are Salt (sodium) prevalent in prepared food o Raw foods have much less sodium than processed, smoked or canned foods Salary – comes from world “Salarium” ===> Latin term for salt o Said to be amount of money given to soldiers to buy salt on regular basis Salt associated with high blood pressure o
Image of page 2
Image of page 3

You've reached the end of your free preview.

Want to read all 73 pages?

  • Spring '11
  • Multiple

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture