Table 1.

Aldehyde types and their different odors.

Type of Aldehyde	Examples	Odor	References
Fatty aldehydes	Hexanal, decanal, and octanal	Fresh apple, orange peel, and citrus odors	[4,5,6,7]
Aromatic aldehydes	Cinnamaldehyde, anisaldehyde, vanillin and benzaldehyde	Cinnamon, sweet blossom, vanilla and almond odors	[4,5,6,7]
Notable terpenoid aldehydes	Safranal and citral	Saffron and lemon aroma	[4,5,6,7]