State two effects of heat on starch - Leaving Cert Home Economics - Question 1 - 2009
Question 1
State two effects of heat on starch.
(i)
(ii)
Name two good sources of fibre in the diet.
(i)
(ii)
Worked Solution & Example Answer:State two effects of heat on starch - Leaving Cert Home Economics - Question 1 - 2009
Step 1
State two effects of heat on starch.
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Answer
Dry Heat: When dry heat is applied to starch, it causes the starch grains to burst and absorb fat. This process is known as dextrinisation, leading to the formation of a brown-colored compound.
Moist Heat: On the other hand, moist heat causes starch grains to swell and burst, absorbing moisture and thickening liquids. This is referred to as gelatinisation.
Step 2
Name two good sources of fibre in the diet.
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Answer
Fruits and Vegetables: These are rich in dietary fiber and essential for digestion.
Whole Grains: Foods like porridge, brown bread, and brown rice are excellent sources of fiber.
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