Abstract
Aroma extract dilution analysis (AEDA) has revealed potent odorants in Japanese tea cultivars of ‘Sofu’ and ‘Yabukita’. AEDA showed that 1-octen-3-one, linalool, 3-methylnonane-2,4-dione, β-damascenone and (Z)-methyl jasmonate were the most prevalent odorants in the tea cultivar of ‘Sofu’; while 6 odorants namely (Z)-1,5-octadien-3-one, 4-mercapto-methyl-pentanone, linalool, (E,E)-2,4-nonadienal, 3-methylnonane-2,4-dione and β-damascenone were key odorants in the tea cultivar of ‘Yabukita’. Aroma profiles of the tea cultivars of ‘Sofu’ and ‘Yabukita’ have been shown as spider graphs, which were based on the results obtained from odor qualities and the flavor dilution factors. Those clarified that fruity and floral odors contributed to the characteristic aroma of ‘Sofu’. Besides, the results showed that methyl anthranilate (fruity) and (Z)-methyl jasmonate (floral) were key factors for formation of its characteristic aroma.
