Powdery encapsulation of shiitake flavors, extracted
from dried shiitake, was investigated by spray drying.
Flavor retention increased with an increase in drying
air temperature and solid content, and decreased with
an increase in dextrose equivalents of maltodextrin. A
heat-treatment of the extract liquid made the lenthionine
concentration increase, but did not influence the
concentrations of the other flavors. The formation of
lenthionine with heat-treatment could be described by
the consecutive unimolecular-type first order reaction.
Lenthionine content in a spray-dried powder prepared
with the heated extracted liquid significantly increased.
-Cyclodextrin was the most suitable encapsulant of -,
-, and -cyclodextrins to prepare the spray-dried
powder, including lenthionine. The flavor retentions
were markedly increased by using of -cyclodextrin and
maltodextrin in combination as an encapsulant.