Introduction
What is artificial food colouring made of?
petroleum
What artificial food colouring has the highest ADI at 7.5mg/bw/day>
yellow #5/tartrazine
What are the 3 categories of effects on health mentioned today?
Physiological, nutritional and behavioural
What are the most common dyes used?
red 40, yellow 5 and yellow 6
what is an example of colour migration for artificial colours?
Colour migration via packaging/utensils
What group is in most artificial food colourings?
azo groups
In a toxicology experiment, this value is the lowest concentration of drugs that result in a negative effect
LOAEL
Give on an example of a physiological symptom of artificial food colouring toxicity.
Growth impairment/Kidney dysfunction/Liver damage/damage to hematocytes.
exempts are not required to go through certification with each manufactured batch whereas certified colours are
Students from which community (urban/suburban) were more likely to consume food containing FDA prohibited artificial colours
suburban
what groups are in yellow 5 and yellow 6 that make food dye absorption more difficult?
sulfonate groups
what does the FDA use to determine ADI by dividing the NOAEL by 100>
safety factor rule
What are the two elements that artificial food colouring binds to rendering them insoluble?
Iron and Zinc
What do they test for in purity testing?
levels of contaminants present such as lead mercury and benzidine.
What is a technique used to avoid toxic consumption of artificial dyes
Proper screening