Description
Fenchyl alcohol has a camphor-like odor with citrus notes and a bitter, lime-like flavor. It is synthesized by reduction of fenchone or from pine terpenes.
Chemical Properties
Fenchyl alcohol has a camphor-like odor with citrus notes and a bitter, lime-like favor.
Occurrence
Both the α- and the β-fenchyl alcohols are reported found in nature; in mixture, they are present in the essential oils of Picea alba, Pinus silvestris, pine oil, Artemisia santolinaefolia, and others; the isofenchyl alcohol (1,5,5-trimethyl-2-norbor- nanol) is not found in nature Reported found in citrus peel oils, grape, grape brandy, hop oil, nutmeg, rosemary, pepper, beer, tea, Ocimum basilicum, cognac, fennel and eucalyptus oil
Uses
Fenchol is a hop-derived aroma compound commonly found in beer.
Preparation
By reduction of fenchone or from pine terpenes.
Aroma threshold values
Aroma characteristics at 1%: clean cooling camphoraceous, piney with a woody eucalyptol and slight green herbal minty nuances.
Taste threshold values
Taste characteristics at 1 to 5 ppm: intense camphoraceous, cooling, piney with an earthy nuance It has minty-citrus lime and spicy notes.
Purification Methods
It is prepared by reduction of (-)-fenchone and is purified by recrystallisation from *C6H6/pet ether, or distillation, or
