2-trans,4-trans-Decadienal
Source: Bedoukian
FEMA# 3135, CAS# 25152-84-5
Natural occurrence: Almond, apple, apricot, Asian pear, beans, beef, beer, bilberry, bread, broccoli, cabbage, carrot, cauliflower, cheddar cheese, clam, cocoa, coffee, cranberry, crayfish, dill, egg, fig, grape, grapefruit, guava, honey, hazelnut, lamb, licorice, lobster, malt, melon, milk, mushroom, oats, olive, orange, parsley, pea, peach, pecan, peanut, pistachio, plum, popcorn, pork, potato, quince, rice, sesame, shrimp, spinach, strawberry, sugar, tea, tomato, vanilla, whiskey.
Odor: @ 1%. Heavy, fatty/oily, green, citrus rind, chicken fat, slight rancid note.
Taste: @ 1 ppm. Fatty, oily, green, melon rind, chicken fat, citrus peel, fried.
Taste: @ 2 ppm. Fried fat, oily, green, cucumber skin, rindy.
Possible applications: The dichotomy here is that this aldehyde is both savory, fatty and melon rindy. Dose in this instance will be important, as well as supporting items in the flavor. Savory, lean, beef, chicken and pork fat all come to mind. We also felt that this is a good note for fried notes or in nut oils. The panel found green notes to be important for cucumber, melon and citrus rind authenticity.
Bedoukian: www.bedoukian.com
trans-2-Dodecenal
Source: Bedoukian
FEMA# 2402, CAS# 20407-84-5
Natural occurrence: Beef, bitter orange, carrot, cilantro, grapefruit, kumquat, mandarin, orange, peanut, pork, rice.
Odor: @ 1%. Sharp, fresh, green, citrus peel, animal fat, cilantro, leafy herbs.
Taste: @ 1 ppm. Waxy, slightly floral, aldehydic, green, leafy, cilantro, fatty, citrus peel.
Taste: @ 2 ppm. Strong, green, waxy, aldehydic, fatty, herbal.
Possible applications: Some citrus profiles come to mind, such as bitter orange, Mandarin and tangerine, for those rind notes. This aldehyde is also useful for cilantro and other leafy type herbs, such as basil and parsley. This is also a good addition for melon and cucumber skin notes. I think that this could be tried in pineapple, as well. Our savory input includes beef and pork fat. Note that there is a large impact difference between 1 ppm and 2 ppm.
Bedoukian: www.bedoukian.com
For the full article, please check out the Perfumer & Flavorist+ September 2022 issue.
