Potent odorants characterize the aroma quality of leaves and stalks in raw and boiled celery.
The raw and boiled odors of celery leaves and stalks were investigated. Among 12 compounds identified as potent odorants, 3-n-butylphthalide 1, sedanenolide 2, and trans- and cis-sedanolides 3, 4 were assessed to be most contributive to the overall odor of celery. These three phthalides, (3E,5Z)-1,3,5-undecatriene, myrcene, and (E)-2-nonenal were common to both raw and boiled materials. Two compounds, ((Z)-3-hexenal and (Z)-3-hexenol), were dominant in raw materials and four compounds, (2-methylbutanoic acid, sotolon, beta-damascenone, and beta-ionone), were dominant in boiled materials. Sensory evaluations were performed on natural celery odor and a series of reconstructed model aromas by assigning each intensity ratings for a set of seven odor qualities which aptly describe the odors of raw and boiled celery. According to the evaluation results, six common components contributed to the moderate odor of raw celery, two components dominant in raw materials enhanced the raw celery character, and four components dominant in boiled materials reduced the raw celery character and enhanced the boiled celery character. It was clarified that boiling-induced changes in celery odor were not affected by the amounts of phthalides, but by thermally generated compounds such as sotolon, beta-damascenone, and beta-ionone, which reduce the "green spicy" note.
Kurobayashi
Yoshiko
Y
Graduate School of Humanities and Sciences, Laboratory of Food Chemistry, Ochanomizu University, Tokyo, Japan.
Kouno
Emi
E
Fujita
Akira
A
Morimitsu
Yasujiro
Y
Kubota
Kikue
K
D000328:Adult; D000077102:Apium / Q000737:chemistry*; D001572:Benzofurans / Q000737:chemistry* / Q000494:pharmacology; D005260:Female; D006358:Hot Temperature; D006801:Humans; D008297:Male; D008954:Models, Biological; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry*; D012903:Smell / Q000187:drug effects / Q000502:physiology*; D014867:Water
D001572:Benzofurans; D010936:Plant Extracts; D014867:Water; C082022:phthalide