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1.Public wants guarentees2.Stay away from Junk ScienceTopic 6: Food AdditivesLesson 1: Food Additives IVideo 1 Wax is added to vegetables: beeswax, carnauba wax, candelilla wax, shellac- Once an apple is picked it is rushed to be cleaned and natural wax from the apples get moved aroundMorpholine: added to wax to make it easier to apply to apples- It’s a naturally occurring chemical in the body to form “nitroso-morpheline”- Amounts are so minimal- Not any dangerCanada health: “Morpholine as used in apple coating does not represent a risk to human health”Nitrate is naturally present in cabbage: when reacting with the body cavity it forms Nitrosamines – could potential be a carcinogen- Reassured the media about itVideo 1Add for shoppers sparkling water: made with no caffeine, sodium or scientistsFrench news paper: wax added to applesBeeswax, carnuba wax (shoe polish, natural), candelilla wax, shellacApples are waxed to remove pesticide residue and natural wax which prevents apples from drying outMorpholine added to wax, no risk to human healthNitrates in cabbage Self quizA wax coating may be added to an apple to replace natural wax that is removed during washing and to help preventmoisture loss.Wax added to lemonsVideo 2Romans wine was fortified with lead acetateIn middle ages it was common to add copper salts to make veggies greenerBakers in 18th century added Plaster of Paris CaSO4 to bread to make it more denseWhen baker ran out of Plaster of Paris, used Arsenic As2O3Natural also contains toxic chemicals Lima beans have sionide compounds
Cassava roots also have cyanide, people poisoned Salfrole teaWileswood popcornPure vegetable oilNatural saltThis chemical which is found in sassafras leaves is a known carcinogen.Safrole or shrikimolVideo 3Chicken noodle soupSalt number 2 ingredient 2 g per day of salt recommendation Sugar is also one of the most added ingredient food additive Salary comes from salarium term in latinAssociated with high blood pressure Does not mean everyone is effected with too much saltVideo 4Monosodium Glutamate 1lb per year of chemicals 2000 chemicals Seaweed Kikunae Ikenda 1908Basic tastes1Sour2Sweet 3Salty4Bitter5Umami (improved taste of food that it is added too)Increases salivation Increased sensitivity CRS = chinese restaurant syndromeSweating, chest pain, similar to heart attackKwoks Disease MSG in Chinese oriental restaurants Glutamic Acid, in cheese, tomatos
Produced in labsMolasses----bacteria---Glutamic acid-----MSGMSG is responsible in some individuals for adverse, not allergic reactions because it does not involve immune systemMSG can trigger astamaVideo 5 shortNew taste Kokumi Video 6Salt as preservative Louis Pasteur Micro organisms coming from outside that cause food to go bad Le experience du col de cygne Salt is good at keeping organisms out through osmosisOsmosis Movement of a solvent, through a semi-permeable membrane, from a region of a low solute concentration to a