Authenticity of vanilla: vanillin, coumarin, PHB aldehyde, PHB acid, vanillic acid in the laboratory

Vanilla is one of the most popular flavors in the world, used in a number of products.

The high demand for vanilla has led to the creation of an industry that produces and supplies this spice worldwide. However, the authenticity of vanilla has been a concern for manufacturers, given the prevalence of counterfeit vanilla products.

A study conducted by the DGCCRF in 2019 shows that almost ¼ of the products analyzed are counterfeit.

What are the different types of vanilla fraud?

The authenticity of vanilla can be compromised by several means, including adulteration, substitution, and artificial flavorings:

• Adulteration​

  involves adding other substances to vanilla extract, such as sugar or synthetic vanillin, to enhance its flavor or reduce costs

• The substitution

  involves the use of other plant extracts or synthetic vanillin as a substitute for real vanilla.

• Artificial flavoring

  involves the use of chemicals to replicate the flavor and aroma of vanilla.

How to limit fraud?

Several organizations have developed standards and regulations for vanilla authenticity, including the International Organization for Standardization (ISO) and the European Union (EU). These organizations set specific criteria for the composition and labeling of vanilla products, ensuring that consumers are informed of the quality and origin of the product they are purchasing. Various techniques are used to analyze vanilla authenticity:

Sensory evaluation:

Detection of off-flavor or odor that may indicate adulteration or substitution.

Physicochemical analyses:

– Chromatography techniques for the identification and quantification of compounds of interest naturally present in vanilla.

– Quantification of various constituents (vanillin, coumarin, PHB aldehyde, PHB acid, vanillic acid.

Any significant deviation from this composition may indicate the presence of adulterants or substitutes.

tests :

Molecular techniques to identify the genetic profile of the vanilla plant and differentiate it from other related species.

This method is particularly useful for identifying the geographical origin of vanilla and detecting any adulteration with other vanilla species.