This invention provides a composition effective in suppressing the deterioration of
citral flavor. [Solution] A
citral flavor-suppressing composition containing one or more compounds selected from the group consisting of 8-methyl-4-methylenenona-7-en-2-one and 4,8-dimethylnona-3,7-dien-2-one as an
active ingredient. Preferably, it contains at least 8-methyl-4-methylenenona-7-en-2-one. Alternatively, preferably, the unpleasant
flavor is due to p-
cresol and / or p-methylacetophenone.