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SOSA: Manual of fibers in pastry making

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FIBERS AND THEIR MAIN TECHNICAL FUNCTIONS<br />

Thicken<br />

This function consists <strong>of</strong> add<strong>in</strong>g<br />

body to a liquid preparation while<br />

<strong>in</strong>creas<strong>in</strong>g viscosity and density <strong>in</strong><br />

preparations such as coulis, sauces,<br />

and creams.<br />

There are many ways <strong>of</strong> thicken<strong>in</strong>g,<br />

us<strong>in</strong>g b<strong>in</strong>d<strong>in</strong>g agents such as gums,<br />

starches or flours, although it is<br />

also common to use eggs and fats<br />

such as butter or even evaporation<br />

methods.<br />

Fibers can also fulfil this function, we<br />

ma<strong>in</strong>ly recommend Flaxfiber for its<br />

great thicken<strong>in</strong>g capacity without the<br />

need to heat the liquid and without<br />

add<strong>in</strong>g colour or flavour to the<br />

preparation.<br />

B<strong>in</strong>d<strong>in</strong>g<br />

B<strong>in</strong>d<strong>in</strong>g is a process that allows<br />

different <strong>in</strong>gredients to be jo<strong>in</strong>ed<br />

together or to make a more compact<br />

dough. It is a very common action<br />

<strong>in</strong> bak<strong>in</strong>g to make doughs such<br />

as biscuits or cakes, as well as to<br />

improve the texture and consistency<br />

<strong>of</strong> certa<strong>in</strong> preparations conta<strong>in</strong><strong>in</strong>g<br />

solids. Egg is one <strong>of</strong> the most used<br />

b<strong>in</strong>ders.<br />

Flaxfiber and Psyllium are Fibers<br />

which, due to their characteristics,<br />

can also perform this function.<br />

Provide<br />

elasticity<br />

It is the property <strong>of</strong> recover<strong>in</strong>g<br />

a shape once we stop exert<strong>in</strong>g<br />

pressure on a structure such as a<br />

bread dough. This function allows<br />

the dough to be stretched without<br />

break<strong>in</strong>g and allows the gas to be<br />

trapped dur<strong>in</strong>g fermentation, thus<br />

<strong>in</strong>creas<strong>in</strong>g the volume <strong>of</strong> the dough.<br />

It also prevents doughs from<br />

crumbl<strong>in</strong>g and gives a good cut, e.g.,<br />

<strong>in</strong> sponge cakes.<br />

Gluten <strong>in</strong> wheat flour is one <strong>of</strong> the<br />

ma<strong>in</strong> contributors to this function,<br />

although it can be replaced by<br />

Psyllium fiber, even improv<strong>in</strong>g the<br />

knead<strong>in</strong>g process.<br />

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