lipids 5
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To examine your fat, usually your food is grinded; why?
• to large your surface • to break cells • to make lipids more accessible for solvent
triglycerides are composed of:
• glycerol • fatty acids
waxes are composed of:
• fatty acids • alcohols
sterol esters are composed of
• fatty acids • sterols
phospholipids are composed of
• glycerol • fatty acids • phosphoric acid
glycolipids are composed of
-glycerol - fatty acids - saccharides
what is a 1-4, pentadiene structure?
double bond is om de 4, je telt vanaf het eerste c met dubbele bond
lipophilic
zijn hydrophobic
When is the high temprature casing quicker oxydation than low temprature? When is low temprature causing quicker oxydation than high temprature?
at a oxygen pressure >100mm Hg; at a low oxygen pressure <100mm Hg; the solubility of oxygen at higher temprature is less, and therefore the oxidation rate slower.
How is fat gained from fat-containing tissue?
By heating (with dry or wet hot water steam)
how is fat gained from vegetables (<25%)
by extraction with a solvent
how is fat gained from vegetables (>25%)
pressing with high (expensive) or low pressure
how is fat gained from the pressed nuts
with extraction with a solvent