A process for stabilizing an aroma-providing component such as coffee
aroma against loss or degradation of desirable flavor or sensory
characteristics of its aroma during storage. The aroma-providing
component is associated with a stabilizing agent in an amount effective
to chemically interact with undesirable compounds to form a stabilized
aroma-providing component which (a) retains a significant portion of one
or more of the desirable flavor or sensory characteristics of the aroma
in the aroma-containing component during storage, or (b) reduces off
flavor generation during storage of the aroma-providing component. The
stabilizing agent preferably is a nucleophile that contains sulfur or
nitrogen, such as sulfur dioxide, sulfites, compounds that contain or
generate thiols, amines or amino acids, cysteine, gluathione or an
enzyme. The stabilized aroma-providing component retains the desirable
flavor and sensory characteristics of the aroma for a time period of at
least six months to one year or longer.