Theoretical note: tests of synergy in sweetener mixtures |
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Authors: | Lawless HT |
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Institution: | Department of Food Science, Cornell University, Ithaca, NY 14853, USA. |
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Abstract: | Some methods for examining the additivity of sweeteners, and their synergy
in mixtures depend upon setting component concentrations on the basis of
sweetness equivalence, usually to a sucrose reference. These methods may
under- or over-predict the sweetness of a mixture, leading to spurious
claims of synergy or mixture suppression. This paper points out one problem
with one such popular method, in that the method can lead to a conclusion
that a substance would synergize with itself. To the extent that
self-synergy is an illogical conclusion for a mixture comparison, such a
method should be avoided in tests of synergy. The sweetness equivalence
approach is contrasted with a simpler approach based on concentrations that
does not lead to conclusions of self- synergy.
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