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How does olive build its sharp green edge?

Crush an olive and a cascade of six-carbon aldehydes floods out — the same enzymatic reaction that makes freshly cut grass smell the way it does, compressed into a single fruit.

3-hexenal
The dominant sharp-grass aldehyde — OAV of 80,000 drives the raw green punch
OAV in olive
Aroma: Sharp, green, grassy · aldehyde
2-hexenal
The fat, rancid-edged aldehyde that adds waxy depth beneath the brightness
OAV in olive
Aroma: fat, rancid · aldehyde
E-2-hexenal
The softer green-fruity-chemical aldehyde that rounds the sharp top note
OAV in olive
Aroma: green; chemical; fruity · aldehyde

All three aldehydes are products of the same lipoxygenase pathway, triggered the moment olive tissue is damaged. Their ratio — not any single compound — determines whether the oil reads as grassy, peppery, or faintly fruity.

Unlock the OAV numbers

See exactly how far over the detection threshold each compound is — the part of the chemistry that explains why this pairing works. Plus the full ranked list for any ingredient, compound index, and Compare tool.

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See every ingredient that contains 3-hexenal · Compare olive vs tomato

OAV (Odor Activity Value) = concentration ÷ detection threshold. Numbers above 1 mean the compound contributes detectably to aroma.

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