VERIFIED CLAIM · CORRECTED

Volatile compounds of citrus rind oils

A review of the volatile composition of the rind essential oil of the ten most studied citrus species, including sweet orange, lemon and bergamot, reports that most of the 49 volatile compounds found in all ten species are terpenoids, and that their volatile composition arranges the species in three clusters.

Scope

Composition of rind oils and extracts, not odour: the review does not describe how the peels smell, and it does not imply that orange, lemon and bergamot peel smell alike.

Correction

The claim said citrus peel aroma is strongly associated with volatile compounds in the rind. Its source, a review of the volatile composition of citrus rind oils, describes their composition but not their aroma, so the claim now says only what the review reports: most compounds found in all ten species are terpenoids, and the species form three clusters by volatile composition.

Correction notice published 9 October 2026.

How this was found

Chemical composition. Compounds were identified or measured, without any assessment of their odour.

Source: review of earlier studies; chemistry work.

Studied: rind essential oils and extracts of ten citrus species, in a review.

This describes how the evidence behind this claim was produced: for a review, by the studies it summarises. What the claim itself covers is its scope, above; how SmellBook checked the claim, where it could, is the next section.

How this claim was checked

SmellBook checked this claim against the source's own words, so that the claim says no more than the source supports. This does not repeat or re-test the study itself.

An editor read the abstract, found the claim said more than it supports, and narrowed the claim; the correction notice records what changed. Abstract from Europe PMC (ebi.ac.uk/europepmc).