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Encapsulation of citrus flavors using blended carriers by spray drying. M. A. REMMERT and Z. H. Qi.
Cerestar U.S.A., Inc.
Microencapsulation in beta-cyclodextrin (BCD) has been recognized as
one of the most effective methods for protecting flavors against oxidation, heat degradation, and
evaporation. Numerous studies have illustrated the efficacy of using BCD alone as carrier. In this study, we
evaluated an alternative approach by using a multi-carrier system of BCD with emulsifying
n-octenylsuccinated (OSAN) starch and corn syrup solids (CSS) for flavor encapsulation. Three citrus oils
(lime, lemon, and orange) were spray dried using a series of blended matrices. Properties of the resultant
products were analyzed and compared. Similarities as well as differences were observed among the spray
dried flavors. For instance, while the actual loading and the total oil recovery of the oils varied in
accordance with the formulated loading, each flavor exhibited a distinct pattern of variation. Other data
related to oxidation stability, sensory performance, reconstituted emulsion quality, and the flavor
component profile also revealed unique characteristics of these encapsulation products. In summary, our
results demonstrate that the combined use of BCD with starch and CSS, upon optimization, can be a more
efficient and economical way for flavor encapsulation via spray drying.
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