Plant Oils Flashcards
1
Q
name some examples of seeds that contain oil
A
- brazilian nuts
- peanuts
- sesame seeds
2
Q
how do you get oil out of plants?
A
- crush it
- press the crushed plant between metal plates and squash oil out
3
Q
what do vegetable oils contain?
A
essentail fatty acids
4
Q
give an example of a vegetable oil that that be processed into a fuel
A
- rapeseed
5
Q
what bonds do unsaturated oils have?
A
double C=C
6
Q
what molecules do oils and fats contain?
A
long chain molecules with lots of carbon atoms
7
Q
how are unsaturated fats hardened?
A
by reacting them with hydrogen in a nickel catalyst at 60ºc. this is hydrogenation. hydrogen reacts with double carbon bonds and opens the double bonds up
8
Q
are unsaturated or saturated fats healthier? Why?
A
unsaturated fats ➡️reduce amount of blood cholesterol
