This article in Food Navigator
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which covered a range of interesting issues in food colouring including the relation between depth of colour and the perception of sweetness, the real danger of some colourants of 100 years ago, the move to natural colours and the fact [...]
This is a short, 2 page summary of a report by Leatherhead on the world food colourant market.
from: FoodBev (click image for full story online)
As well as information on the market and market trends the summary lists, with brief explanations, the four largest suppliers and the food groups where colourants are [...]