Besides contributing directly to flavour and functionality, soy sauce’s
composition also makes it useful as a natural flavour enhancer.
The overall flavour experience is a
combination of several concurrent
reactions in the mouth. First,
the molecules of various food
compositions trigger receptors
for the basic taste. Here, olfactory
receptors transmit odour perception
to the brain, where the information
is combined with that of the taste
receptors. This combination is finally
influenced by physical perceptions
in the mouth. Flavour enhancers
help combine these reactions into a
unified, blended flavour experience
and to intensify the overall effect.
Soy sauce is a flavour enhancer
primarily because of its amino acid
content. Many amino acids have been
identified both as flavour potentiators
and as “umami” contributors – most
notably glutamic acid. But soy sauce’s
glutamic acid content isn’t the only
thing contributing to its flavour enhancing
capabilities.
Umami ingredients such as glutamic
acid, may work synergistically
with salt to produce an enhancing
effect, according to one
researcher. Soy sauce, as previously
discussed has plenty of both.
ASIAN AND BEYOND
Although soy sauce is often
viewed only as a traditional
component of Asian cuisine,
it holds great potential
as a flavouring, flavour enhancing
and functional
ingredient for a wide variety
of non-Asian commercial
food products as well.
Beyond traditional Asian applications,
the flavour enhancing benefits of
naturally brewed soy sauce are right
at home in a variety of ethnic and
mainstream Western products.
Rapid preparation can be an obstacle
in the production of processed foods.
The cooking time required to develop
rich, meaty flavours is often overridden
by production requirement. Adding
soy sauce to the formula adds amino
acids that can help fill out the
flavour profile without having to
add hydrolysed vegetable protein.
Consumers often think of processed
foods as “one-dimensional” or “flat tasting”. The combination
of basic tastes embodied in
soy sauce can add interest and
dimension to a variety of foods.
The flavour-enhancing properties
of soy sauce also can work to
further blend and balance the
flavour components in a formula.