Saturday 11 December 2010

Aroma Chemistry Revision - aroma compunds

When it comes to revising aroma chemistry, Wikipedia is a very useful tool allowing you to flick from one article to another using tables like that below

Esters

Compound name Fragrance Natural occurrence Chemical structure
Methyl formate Ethereal
Methyl formate.svg
Methyl acetate Sweet, nail polish
Solvent

Methyl acetate.png
Methyl butyrate
Methyl butanoate
Fruity, Apple
Pineapple

Methyl butyrate.png
Ethyl acetate Sweet, solvent Wine
Ethyl-acetate-2D-skeletal.png
Ethyl butyrate
Ethyl butanoate
Fruity, Orange
Pineapple

Ethyl butyrate.png
Isoamyl acetate Fruity, Banana
Pear
Banana plant
Isoamyl acetate.png
Pentyl butyrate
Pentyl butanoate
Fruity, Pear
Apricot

Pentyl butyrate.png
Pentyl pentanoate Fruity, Apple
Pentyl pentanoate.png
Octyl acetate Fruity, Orange
Ocyl acetate.png

Linear terpenes

Compound name Fragrance Natural occurrence Chemical structure
Myrcene Woody, complex Verbena, Bay
Myrcene beta straight acsv.svg
Geraniol Rose, flowery Geranium, Lemon
Geraniol structure.png
Nerol Sweet rose, flowery Neroli, Lemongrass
Nerol2.png
Citral, lemonal
Geranial, neral
Lemon Lemon myrtle, Lemongrass
Geranial structure.png
Citronellal Lemon Lemongrass
Citronellal-2D-skeletal.png
Citronellol Lemon Lemongrass, rose
Pelargonium
Citronellol-2D-skeletal.png
Linalool Floral, sweet
Woody, Lavender
Coriander, Sweet basil
Lavender
Linalool-skeletal.png
Nerolidol Woody, fresh bark Neroli, ginger
Jasmine
Nerolidol.png

Cyclic terpenes

Compound name Fragrance Natural occurrence Chemical structure
Limonene Orange Orange, lemon
Limonene-2D-skeletal.svg
Camphor Camphor Camphor laurel
Camphor structure.png
Terpineol Lilac Lilac, Cajuput
Terpineol alpha.svg
alpha-Ionone Violet, woody Violet
Alpha-ionone-label.png
Thujone Minty Cypress, lilac
Juniper
Beta-Thujone.svg

Aromatic

Compound name Fragrance Natural occurrence Chemical structure
Benzaldehyde Almond Bitter almond
Benzaldehyde.png
Eugenol Clove Clove
Eugenol acsv.svg
Cinnamaldehyde Cinnamon Cassia
Cinnamon
Zimtaldehyd - cinnamaldehyde.svg
Ethyl maltol Cooked fruit
Caramelized sugar

Ethyl maltol.png
Vanillin Vanilla Vanilla
Vanillin.svg
Anisole Anise Anise
Anisol.svg
Anethole Anise Anise
Sweet basil
Anethole-structure-skeletal.png
Estragole Tarragon Tarragon
Estragole acsv.svg
Thymol Thyme Thyme
Thymol2.svg

Essentia





























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