Lever Brothers Company

Tamme S Doornbos

Arnoldus Van Der Heijden

Petrus G Haring

Godefridus Antonius Van Den Ouweland

Johannes F De Rooij

Johannes W Van Der Kamp

The present invention is concerned with a flavor concentrate containing a precursor of biacetyl, which concentrate is characterized in that it contains 0.1-99 wt. % precursor compound(s) having the following structural formula: ##STR1## in which X is ##STR2## and in which R.sub.1, R.sub.2, R.sub.5 and R.sub.6 can differ from each other or can be identical and consist of a methyl or ethyl group. It has been found that the present precursor compounds release biacetyl upon heating. By using the present precursor compounds in food products problems attached to the use of very volatile diketones in food products may be overcome.

Use of diketone precursors in food products

A butter-like concentrate is provided, which concentrate is a mildly heated mixture of

Butter-like concentrate

A creamy, buttery flavor or aroma with a pleasant note, reminiscent of bread is imparted to foodstuffs by heating them under controlled conditions in the presence of Amadori rearrangement compounds, having a melting point below 170.degree. C, of 6-deoxy-aldohexoses, such as e.g. rhamnose, and alpha-amino acids, such as e.g. proline. Frying and cooking fats, including margarine, comprising these Amadori compounds are also described.

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Krimpen a/d IJssel, Netherlands

Tamme S Doornbos