Presence of glutamate in foods
It is important to note that the
concentration of both glutamates and the flavor-enhancing nucleotides or
their precursors
is relatively high in biological systems. These
flavor enhancers are present as the building blocks of proteins and
nucleic
acids. Hence, it is not surprising to find these
components in natural form in virtually all foods, including meat, fish,
poultry, milk and vegetables. Flavor enhancers
generally exist in bound form; in most instances, however, they become
partially
free during processing, thereby accentuating their
characteristic flavor properties. Meat, fish and poultry are specially
rich in IMP; crustaceans, mollusks and some
vegetables, on the other hand, are rich in AMP, which eventually serves
as the
precursor for the formation of IMP.
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