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Flavouring Substance – Definition, Types & Health

Flavouring substances are compounds added to foods and beverages to impart or enhance taste and aroma. They may be natural, nature-identical, or artificially produced.

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Things worth knowing about "Flavouring Substance"

Flavouring substances are compounds added to foods and beverages to impart or enhance taste and aroma. They may be natural, nature-identical, or artificially produced.

What is a Flavouring Substance?

A flavouring substance is a chemical compound used to give food, beverages, or dietary supplements a specific taste or smell. Flavouring substances belong to the broader category of food additives and are regulated in the European Union by Regulation (EC) No 1334/2008. They are used in a wide variety of processed foods, from baked goods and soft drinks to ready-made meals and confectionery.

Types of Flavouring Substances

Flavouring substances are generally classified into several categories:

Natural flavouring substances: These are obtained from plant or animal raw materials through physical, microbiological, or enzymatic processes. A well-known example is natural vanillin extracted from vanilla pods.
Artificial flavouring substances: Fully synthetic compounds that do not occur in nature. These must be clearly labelled as artificial on product ingredient lists.
Smoke flavourings: Special flavourings derived from the condensation of smoke, typically used to give products a smoked taste.
Flavouring extracts: Concentrated preparations derived from natural sources such as fruits, herbs, or spices.
Flavouring preparations: Mixtures of flavouring substances and other ingredients used to create complex flavour profiles.

Production and Sourcing

The production of flavouring substances is a complex industrial process. Natural flavourings are obtained through extraction, distillation, or fermentation. Synthetic flavourings are created through chemical synthesis in a laboratory. The chemical industry has identified and characterised thousands of aroma compounds, many of which produce strong sensory effects even in very small concentrations (milligrams per kilogram of food).

Labelling and Approval

In the European Union, flavouring substances must be declared on the ingredient list of a food product. Key labelling rules include:

The term flavouring may only be used for approved flavouring substances and preparations.
Natural flavourings must be labelled as natural flavouring.
If a natural flavouring contains at least 95% of the named source compound, the source may be named (e.g., natural strawberry flavouring).
Before approval, flavouring substances are assessed for safety by the European Food Safety Authority (EFSA).

Health Considerations

Approved flavouring substances are considered safe for human health when used as intended. EFSA regularly evaluates both new and existing substances for their toxicological properties. However, there are some aspects relevant to consumers:

Allergies and intolerances: Certain flavouring substances, such as cinnamaldehyde or menthol, can trigger allergic reactions or contact dermatitis in sensitive individuals.
Coumarin: The natural flavouring substance coumarin, found in cassia cinnamon, can be harmful to the liver in large quantities. EFSA has therefore established maximum limits for its use.
No nutritional function: Flavouring substances generally have no nutritional value; they serve solely to influence the sensory properties of food.
Masking effect: The use of flavourings can mask the natural taste and smell of lower-quality ingredients, potentially misleading consumers.

Flavouring Substances in Everyday Life

Flavouring substances are found in countless everyday products: yoghurt, fruit juice, crisps, chewing gum, soft drinks, spice blends, and many convenience foods. They are also used in dental care products, cosmetics, and pharmaceuticals to improve user acceptance. For a more conscious diet, it is advisable to read ingredient labels and limit the consumption of heavily flavoured processed foods.

References

European Parliament and Council of the European Union: Regulation (EC) No 1334/2008 on flavourings and certain food ingredients with flavouring properties. Official Journal of the European Union, 2008.
European Food Safety Authority (EFSA): Scientific Opinion on Flavourings. EFSA Journal, 2010 onwards. Available at: https://www.efsa.europa.eu
Federal Institute for Risk Assessment (BfR): Flavouring substances in food – assessment and labelling. Berlin, 2020. Available at: https://www.bfr.bund.de

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