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Extracting vegetable oils

Some seeds, nuts and fruits are rich in vegetable oils. The Oils

can be extracted by pressingfollowed by removing water and other

impurities. Some oils are extracted by distilling the plants mixed

with water. This produces a mixture of oil and water from which

the oil can…

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molecules with chains of carbon atoms.

NOW, to see what you have learned

Q1. What two methods are used to extract vegetables oils?

Q2. Why are vegetable oils important as foods (and!) fuels?

Q3. What is meant by an unsaturated oil?

Q4. What can you use to test an oil…

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1. Pressing and distillation (with water added).

2. They Produce a lot of energy.

3. An oil with molecules that contain carboncarbon double bonds (so they contain fewer
hydrogen atoms than the corresponding saturated molecule).

4. Bromine Water.


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