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between saturated and unsaturated fat?

2007-05-02 11:14:40 · 8 answers · asked by Turnip 3 in Science & Mathematics Chemistry

8 answers

Chemically, the difference is unsaturated has double bonds in a long chain organic acic and saturated has all single bonds, as the double bonds have been "saturated" with hydrogen.

Physically, the unsaturted fats are likely to be liquid at room temperature and saturated fats are solid (Crisco, as an example).

The saturated fats are much more dangerous to your health

2007-05-02 11:20:09 · answer #1 · answered by reb1240 7 · 0 0

The difference between saturated and unsaturated fat in a word is -- hydrogen. All fats contain carbon, hydrogen and a little oxygen to form what are called fatty acids. Chemists classify fats according to the proportion of hydrogen in the fatty acids. If the fatty acids contain all the hydrogen possible, they are said to be saturated. If not completely full of hydrogen, fatty acids are termed unsaturated.

Animal fat tends to be highly saturated with hydrogen, while vegetable fats are unsaturated to varying degrees. However, all foods contain a mixture of saturated and unsaturated fats. For example, poultry contains 30% saturated fat and 70% unsaturated fat. Beef, pork, and lamb have about equal amounts of each. Vegetable fats, like corn oil, olive oil, sesame oil, soybean oil, and peanut oil, contain approximately 14% saturated and 85% unsaturated fats.

Saturated fats are usually solid and unsaturated fats are liquid at room temperature. This is an easy way to distinguish between the two. A notable exception is soft and hard margarine. Margarine is made from vegetable fat, but through a process called hydrogenation (hydrogen is added to the fatty acids), it is turned into a saturated fat for firmness. All types of fats, of course, supply the same amount of energy (about nine calories per gram).

Cholesterol is not a fat, although it is often confused with saturated fat. Cholesterol is a fat-like substance that belongs to another chemical family called steroids. Most of the cholesterol in our blood is manufactured in our livers from a wide variety of foods -- but especially from saturated fat. Only a relatively small amount comes more from the cholesterol-rich foods we eat, such as eggs and dairy products.

Cholesterol is also not poison. It is important in producing vitamin D and essential to our metabolism, to cell formation, and for other chemical processes. The problem is that many people manufacture too much blood cholesterol, specifically LDL - cholesterol. This increases the risk of developing atheroscleroses (accumulation of fatty tissue on the inner lining of arteries) which can lead to a heart attack or stroke.

To decrease this risk, we should limit our consumption of all types of fat to 30% of our total calories, with 10% or less of these calories coming from saturated fat -- the principal raw material in cholesterol production. We should also limit our daily cholesterol intake to 300 milligrams. One egg, for instance, contains about 270 milligrams of cholesterol. Nearly all of it is in the yolk.

2007-05-02 11:19:43 · answer #2 · answered by richard_beckham2001 7 · 0 0

unsaturated is healthier than saturated

2007-05-02 12:18:47 · answer #3 · answered by Anonymous · 0 1

unsaturated is more healthy than saturated

2007-05-02 11:22:17 · answer #4 · answered by horsie 2 · 0 1

Saturated fat contains double bonds in its chain where unsturated fats have no double bonds.

2007-05-02 11:19:07 · answer #5 · answered by DrSean 4 · 0 1

saturated don remain in liquid form

Unsturated can be solid

2007-05-02 11:19:15 · answer #6 · answered by Anonymous · 0 1

Who said anything about deporting the most interesting woman in Answers.

2007-05-03 07:16:53 · answer #7 · answered by Canute 6 · 1 1

Deport me to where? Back to Chiswick? LOL. Twit.

2007-05-03 05:26:44 · answer #8 · answered by Anonymous · 0 1

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