lipids

what is the dietary lipids?

insoluable in water

what are 3 insoluable dietary lipids

triglyceride, phospholipids, sterols-cholestral

most lipids __% are mixd as

95, triglycerides

Fatty acids can be both

saturated and unsaturated

FA are _ to … carbons in length

2-24

when 1 FA is hydrolyzed off of a TG(triglyceride), a results

Diglyceride

When 2 FA hydrolyze off a TG, a results

monoglyceride

short chin FA (SCFA) and Medium chain fa (MCFA) are mostly

saturated fatty acids

long chain fatty acids (LCFA) are ___ in length

12-24C

SCFA and MCFA are in length

less than 6 carbons, 6-12C

chain length overrides the effects of saturation with SFA ONLy. what does this mean?

this means it isnt solid at rt, ITS LIQUID

increased saturation decreases rancidity of food products. this means

short chain fatty acids become more noticably rancid

lipid classification flow chart (1)

FATTY acid → saturated & unsaturated

lipid classification flow chart unsaturated (2)

monosaturated & polysaturated

lipid classification flow chart polyunsaturated (3)

alpha-linolenic acid & linoletic acid

lipid classification flow chart alpha linolenic acid (4)

eicospentaenoic acid & docosachexanic acid

lipid classification flow chart linolenic acid (4)

arachidonic acid

alpha linolenic acid facts

alpha 3, double bond at 3rd carbon of 18, dounle bond every 3 carbons. ESSENTIAL fatty acids. omega 3

linoleic acid facts

alpha 6, double bond at carbon 6 and every 3 after of 18. EFA. omega 6

facts about eicospaentanoic acid (EPA)

omega 3, non essential

facts about docosahexaenoic acid (DHA)

omega 3,non essential

facts about arachiodnic acid (AA)

omega 6, non essential

SFA all carbons (except acid end) are saturated with

hydrogen atoms

SFA are___ packed and ___ at room temperature

linear, solid

unsaturated FA: MUFA facts. (omega, state, shape) (monounsaturated FA)

omega 9, semi-solid room temp, side of double bond creates bend, cis double bond

unsaturated FA: MUFA oils (monounsaturated FA)

oleic acid, olive oil, canola oil, avocado oil, peanut oil, almond oil, sunflower oil

unsaturated FA: PUFA omega 6 facts. (name, state, shape) (polyunsaturated FA)

arachidonic acid (AA), liquid at room temp, multiple cis bonds, multiple bends.

unsaturated FA: PUFA omega 6 oils (polyunsaturated FA)

corn oil, soybean oil, sunflower oil, sesame oil

unsaturated FA: PUFA (omega 3) oils

flaxseed oil, walnut oil, canola oil, hemo oil, wheat germ, fish & fish oil

unsaturated FA: PUFA omega 3 facts. (name) (polyunsaturated FA)

eicosapentaeonic acid(EPA), docosahexaenoic acid(DHA)

long chain omega 3 PUFA are active in (DHA)

active in retina of eye and cerebral cortex of brain

EPA and DHA are found in (1), (2), (3) and NOT in

human milk, shellfish, fish/oils, NOT IN COWS MILK

be cautious of fish oil supplements because excess intake can

cause heavy metal contamination

DRI-AI intake of PUFA

~10:1 omega 6 : omega 3. males: 17.1.6g/day females: 12.1.1 g/day

we get plnety of omega __ but need need to increase our omega … (but keep fat intake within 30% of energy intake)

six, three

grapeseed oil has __ % sfa, ….. % mufa, …% omega 6, ….. omega 3

12, 15, 73, no

grilled zucchini (green, yellow) & tomatoes, baked salmon prepared with canola oil has mostly

omega-3 PUFA (POLYUNSATURATED), MUFA

what are the predo9minat FAs found in these foods: avocado, salom, flax seeds, olive oil, walnuts

omega-3, PUFA, MUFA