This disclosure relates to flavour modification and to compounds of formula (I) ##STR00001## wherein R.sup.1 is selected from C.sub.6-C.sub.13 alky, and C.sub.9-C.sub.13 alkenyl, and R.sup.2 is selected from CH.sub.2-phenyl, CH.sub.2-1H-indole, CH.sub.2-phenol, and CH.sub.2-imidazol,
useful in modifying flavours.

A flavour composition comprising a compound according to the formula (I) or edible salts thereof,

##STR00001##

wherein
R.sub.1 is an alkyl residue containing 6 to 20 carbon atoms, or an alkene residue containing from 9 to 25 carbon atoms with 1 to 6 double bonds, R.sub.1 together with the carbonyl group to which it is attached is a residue of a carboxylic acid, and NR.sub.2R.sub.3, in which R.sub.3 is H or together with R.sub.2 and the N-atom to which they are attached, a 5-membered ring, is a residue of an amino acid, in particular a proteinogenic amino acid, ornithine, gamma-aminobutyric acid or beta alanine, or a 1-amino cycloalkyl carboxylic acid.

The present invention relates to a soy milk containing methylpyrazine compounds consisting of 2-methylpyrazine, 2,5-dimethylpyrazine and 2,6-dimethylpyrazine at a quantity of 40 to 7000 g per 1 L.

A flavour composition comprising a compound according to the formula (1) or edible salts thereof,

##STR00001##

wherein R.sub.1 is an alkyl residue containing 6 to 20 carbon atoms, or an alkene residue containing from 9 to 25 carbon atoms with 1 to 6 double bonds, R.sub.1 together with the carbonyl group to which it is attached is a residue of a carboxylic acid, and NR.sub.2R.sub.3, in which R.sub.3 is H or together with R.sub.2 and the N-atom to which they are attached, a 5-membered ring, is a residue of an amino acid, in particular a proteinogenic amino acid, ornithine, gamma-aminobutyric acid or beta alanine, or a 1-amino cycloalkyl carboxylic acid.

A flavour composition comprising a compound according to the formula (I) or edible salts thereof,

##STR00001##

wherein

R.sub.1 is alkyl residue containing 6 to 20 carbon atoms, or an alkene residue containing from 9 to 25 carbon atoms with 1 to 6 double bonds, R.sub.1 together with the carbonyl to which it is attached is a residue carboxylic acid, and NR.sub.2R.sub.3, in which R.sub.2 is H or together with R.sub.2 and the N-atom to which they are attached, a 5-membered ring, is a residue of an amino acid, in particular proteinogenic amino acid, ornithine, gamma-aminobutyric acid or beta alanine, or a 1-amino cycloalkyl carboxylic acid.

The present invention relates to the discovery that certain non-naturally occurring, non-peptide amide compounds and amide derivatives, such as oxalamides, ureas, and acrylamides, are useful flavor or taste modifiers, such as a flavoring or flavoring agents and flavor or taste enhancer, more particularly, savory (the umami taste of monosodium glutamate) or sweet taste modifiers, savory or sweet flavoring agents and savory or sweet flavor enhancers, for food, beverages, and other comestible or orally administered medicinal products or compositions.

This disclosure relates to flavour modification and to compounds of formula (I) ##STR00001## wherein R.sup.1 is selected from C.sub.6-C.sub.20 alkyl, and C.sub.9-C.sub.25 alkenyl, and i) R.sup.3 and R.sup.4 are hydrogen and R.sup.2 the residue of a proteinogenic amino acid; ii) R.sup.2 and R.sup.3 are methyl and R.sup.4 is hydrogen; or R.sup.4 is hydrogen and R.sup.2 and R.sup.3 form together with the carbon atom to which they are attached cyclopropyl; iii) R.sup.2 is hydrogen, and R.sup.3 and R.sup.4 together are CH.sub.2CH.sub.2CH.sub.2,
useful in modifying flavours.

Described herein is a composition of matter comprising i) at least one compound of formula (I)

##STR00001## in the form of any of its stereoisomers; and wherein R.sup.1 represents a phenyl group optionally substituted by one or two C.sub.1-3 alkyl or alkoxy groups or by one or two halides group; R.sup.2 and R.sup.3 represent, independently from each other a heterocyclic group comprising from 1 to 3 heteroatoms selected from nitrogen, oxygen and sulfur, optionally substituted by one or two C.sub.1-3 alkyl groups; and ii) at least a C.sub.1-6 linear or branched alkyl lactate.
Also described herein is a method of using the composition of matter as part of a flavoring or perfuming composition or of a flavoring or perfuming consumer product. Also described herein is a process to prepare the composition of matter and the polymorph of compound of formula (I).

A compound represented by the following formula (1):

##STR00001## wherein, R.sub.1 is a linear or branched alkyl group having 1 to 3 carbon atoms or a hydroxyl group; and R.sub.2 is a 1-pyrrolyl group, a 2-pyrrolyl group, or a 3-pyrrolyl group. The present invention can provide a means highly effective in contributing to savory roasting flavor and capable of imparting fragrance with natural feeling.

A powder flavour composition comprising a compound according to the formula (I) or edible salts thereof, and at least one flavour co-ingredient ##STR00001##
wherein R.sub.1 is an alkyl residue containing 6 to 20 carbon atoms, or an alkene residue containing from 9 to 25 carbon atoms with 1 to 6 double bonds, R.sub.1 together with the carbonyl group to which it is attached is a residue of a carboxylic acid, and NR.sub.2R.sub.3, in which R.sub.3 is H or together with R.sub.2 and the N-atom to which they are attached, a 5-membered ring, is a residue of an amino acid, in particular a proteinogenic amino acid, ornithine, gamma-aminobutyric acid or beta alanine, or a 1-amino cycloalkyl carboxylic acid.