Oleoresin is a solvent-extracted spice concentrate containing both volatile aroma compounds and non-volatile constituents such as pungency principles and pigments, used in industrial food applications where standardised flavour strength and colour are required.
In trade practice
Manufacturers extract oleoresin using food-grade solvents, which must be removed to residue limits set in EU flavouring legislation before the product enters the food chain. Buyers specify the spice equivalent value, colour strength and pungency level in their ingredient brief, and suppliers provide a certificate of analysis confirming these parameters batch by batch. Residual solvent testing is a standard intake check. Oleoresins are handled as concentrated ingredients and require precise dosing to avoid over-flavouring in the finished product.
In a specification
An oleoresin specification states the spice equivalent ratio, colour value, pungency or active compound content, maximum residual solvent levels and the test methods used to verify each parameter.