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trans-2-Dodecenal, a colorless to slightly yellow liquid, is found in dairy products, chicken, coriander oil (Coriandrum sativum L.), peanuts, citrus oils and rice. Previously known to occur only in plants, this material has been identified in the defensive secretion of the spiroboloid millipede Rhinocricus insulates, and shows promising antiviral and antibacterial properties.
The aroma profile of trans-2-dodecenal can be described as intensely fatty, waxy, mandarin orange and somewhat citrusy on dilution. In addition to its application in dairy and meaty flavorings, citrus fruits, coriander, dairy products, mandarin, orange and tangerine flavors, this material can also be used in formulation of tropical blends. In fragrances, trans-2-dodecenal can be used to obtain the heavy notes in a citrus complex for cosmetic purposes.
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