Ketones have an oxygen atom double-bonded to a carbon atom but always on a carbon atom that is bonded to two other carbon atoms. They are derived from secondary alcohols. Ketones with closed rings have a typical minty-camphoraceous aroma (from the menthone, camphor, and carvone components).
CHEMICAL CONSTITUENTS FOUND IN KETONES
COMMON KETONES
Chemicals | ||
---|---|---|
camphor | isomenthone | pulegone |
carvone | artemisia ketone | 3-hexanone |
fenchone | beta-ionone | beta-vetivone |
jasmone | nootkatone | menthone |
methyl nonyl ketone | pinocamphone | piperitone |
thujone | turmerone | verbenone |
valeranone | vetivone |
ESSENTIAL OILS CONTENT OF KETONES
Essential Oils | Percentage |
---|---|
Cedar Bark | 87% |
Cedar Leaf | 86% |
Wild Tansy | 73% |
Marigold | 65% |
Spearmint | 60% |
Thuja | 59% |
Caraway Seed | 53% |
Hyssop | 52% |
Davana | 48% |
White Champhor | 47% |
Eucalyptus Dives | 42% |
Sage | 41% |
Calamus | 40% |
Dill | 38% |
Yarrow | 21% |
Peppermint | 20% |
Rosemary | 20% |
Helichrysum | 19% |
Myrrh | 17% |
Juniper Berry | 15% |
Blue Tansy | 14% |
Mugwort | 14% |
Roman Chamomile | 12% |
Fennel | 10% |
Celery Seed | 9% |
Cistus | 8% |
Lavandin | 8% |
Spikenard | 8% |
Geranium | 7% |
Melissa | 4% |
Coriander | 4% |
Ginger | 4% |
Moroccan Thyme | 3% |
Eucalyptus | 3% |
Orange | 3% |
Patchouli | 3% |
Spanish Marjoram | 3% |
Black Pepper | 2% |
Blue Mallee | 2% |
Lavender | 2% |
Lemongrass | 2% |
Oregano | 2% |
Tsuga | 2% |
Anise | 1% |
Basil | 1% |
Clary Sage | 1% |
Elemi | 1% |
Grapefruit | 1% |
Ledum | 1% |
Winter Savory | 1% |
Ormenis | 1% |