Colours for soft drinks

The following parameters can affect the stability and character of the colours used and must, therefore, be taken into account when applying colours [13]  

For colours ranging from yellow to orange, beverage manufacturers have a choice of various natural colorants, depending on the product to be coloured. 

Riboflavin (also known as vitamin B2) is often used, for example, in energy drinks, as it is valued not only for its yellow colouring effect, but also for its positive properties as a functional ingredient. 

Lutein provides a brilliant yellow colouring within a wide range of pH levels. There is also a positive side effect attributed to this natural colour extract from the genus Tagetes lutein is supposed to have positive effects on the long-term health of the human eye. 

Citrus oil is a natural flavouring derived from citrus peel that has a colouring effect with a light yellow shade. 

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The use of food colours is carefully controlled under various legislations (Table 5.5). There is at present no universal listing of colours for soft drinks and it is necessary to investigate the permitted list to ensure compliance for goods to be manufactured in, or exported to, a particular country. 

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