The results showed that both relative contents and varieties of
most of the typical volatile compounds of teas were significantly
different between TBWs and CTBs. Among these compounds, the
concentration differences of monoterpene alkenes, jasmine lactone
and aldehydes/ketones, between TBW and CTB, might be caused by
absorption of hydrophobic yeast biomass (King & Dickinson, 2003),
or even by evaporation during the long brewing process due to
their structural properties of low polarity and low boiling point.