3-Methyl-nonane-2,4-dione

Chemical properties

3-Methyl-2,4-nonanedione imparts a hay-like, green note

Occurrence

Reported present in dried green and black teas as well as dried parsley and dried spinach, Chinese green tea powder, Japanese green tea, boiled carp, soybean oil, black tea and achovy.

The Uses of 3-Methyl-nonane-2,4-dione

3-Methylnonane-2,4-dione is a compound that possesses a butter-like and beany off flavour that is a result of flavour reversion of soya-bean oil. 3-Methylnonane-2,4-dione is also present in Japanese green tea and pressure-cooked hen meat.

What are the applications of Application

3-Methylnonane-2,4-dione (Mixture of isomers) is a compound that gives the straw-like flavor to green tea

Definition

ChEBI: 3-Methyl-2,4-nonanedione is a beta-diketone.

Aroma threshold values

In air at 0.000007 to 0.000014 mg/m3. Aroma characteristics at 1.0%: sweet, waxy, creamy dairy, condensed milky and dried milk powder, slightly coconut and musty nuances, grape and haylike nuances.

Taste threshold values

Taste characteristics at 1 to 5 ppm: sweet, milky creamy, condensed milk and dried milk powder, slightly fruity coconut, creamy and fruity notes reminiscent of banana, grape skin, green tea and aged cheeses, good mouthfeel