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单词 saturated fat
释义

saturated fat


saturated fat

n. Any of various fats, including most animal fats, coconut oil, and palm oil, that are solid at room temperature and whose fatty acid chains cannot incorporate additional hydrogen atoms. An excess of these fats in the diet is associated with high cholesterol levels in the bloodstream.

sat′urated fat′



n. any animal or vegetable fat, abundant in fatty meats, dairy products, coconut oil, and palm oil, tending to raise cholesterol levels in the blood. [1970–75]

saturated fat

A fat whose triglyceride molecule contains three saturated fatty acids. Most fats derived from animal sources are saturated fats. Eating foods high in saturated fats can lead to cholesterol levels in the blood that are higher than normal. Compare unsaturated fat.
Translations

saturated fat


saturated fat,

any solid fat that is an esterester,
any one of a group of organic compounds with general formula RCO2R′ (where R and R′ are alkyl groups or aryl groups) that are formed by the reaction between an alcohol and an acid.
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 of glycerolglycerol,
 glycerin,
 glycerine,
or 1,2,3-propanetriol
, CH2OHCHOHCH2OH, colorless, odorless, sweet-tasting, syrupy liquid. Glycerol is a trihydric alcohol. It melts at 17.
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 and a saturated fatty acidfatty acid,
any of the organic carboxylic acids present in fats and oils as esters of glycerol. Molecular weights of fatty acids vary over a wide range. The carbon skeleton of any fatty acid is unbranched. Some fatty acids are saturated, i.e.
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. The molecules of a saturated fat have only single bonds between carbon atoms; if double bonds are present in the fatty acid portion of the molecule, the fat is said to be unsaturated. Unsaturated fats generally have lower melting points than saturated fats and are often liquids (oils) at room temperature. Unsaturated fats can be converted to saturated fats by a process called hydrogenation; since this usually raises the melting point of the fat and makes it a solid, the process is also called hardening. A correlation has been found between the consumption of solid fats in food and cholesterol levels in blood. Cholesterol forms arterial plaques that may lead to blockage of the arteries, i.e., atherosclerosis. Dietary guidelines in the United States call for reduced intake of saturated fat. See fats and oilsfats and oils,
group of organic substances that form an important part of the diet and also are useful in many industries. The fats are usually solid, the oils generally liquid at ordinary room temperatures.
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.

saturated fat


fat

 [fat] 1. the tissue" >adipose tissue of the body.2. a triglyceride" >triglyceride (or triacylglycerol) that is an ester of fatty acids and glycerol. Each fat molecule contains one glycerol residue connected by ester linkages to three fatty acid residues, which may be the same or different. The fatty acids may have no double bonds in the carbon chain (saturated fatty acids), one double bond (monounsaturated), or two or more double bonds (polyunsaturated). Essential fatty acids cannot be synthesized by the body but must be obtained from the diet or from intravenous infusion of lipids.Saturated and Unsaturated Fats. All of the common unsaturated fatty acids are liquid (oils) at room temperature. Through the process of hydrogenation, hydrogen can be incorporated into certain unsaturated fatty acids so that they are converted into solid fats for cooking purposes. Margarine is an example of the hydrogenation of unsaturated fatty acids into a solid substance.brown fat a thermogenic type of adipose tissue containing a dark pigment, and arising during embryonic life in certain specific areas in many mammals, including humans (see illustration); it is prominent in the newborn. Called also brown adipose tissue.Sites of brown fat in the neonate. From McKinney et al., 2000.neutral fat fat (def. 2).polyunsaturated fat a fat containing polyunsaturated fatty acids; see also fat.saturated fat a fat containing saturated fatty acids; see also fat.unsaturated fat a fat containing unsaturated fatty acids; see also fat.

sat·u·rat·ed fat·ty ac·id

a fatty acid, the carbon chain of which contains no ethylenic or other unsaturated linkages between carbon atoms (for example, stearic acid and palmitic acid); called saturated because it is incapable of absorbing any more hydrogen.

saturated fat

n. Any of various fats, including most animal fats, coconut oil, and palm oil, that are solid at room temperature and whose fatty acid chains cannot incorporate additional hydrogen atoms. An excess of these fats in the diet is associated with high cholesterol levels in the bloodstream.
Any fat linked to increased atherosclerosis, and a poor lipid profile
Examples Saturated fats (e.g., red meat, butter, ice cream); trans fats—processed foods (e.g., margarines), commercially baked or fried foods, whole milk

sat·u·rat·ed fat

(sach'ŭr-āt'ĕd fat) A type of fat found chiefly in foods that come from animals and certain vegetable oils, which raise blood cholesterol levels and thus increase risk of atherosclerosis.

Patient discussion about saturated fat

Q. I am wondering if any of you are ENTHUSED about the use of COCONUT OIL. I ask because it IS SATURATED FAT. I have trouble losing weight. That inculdes getting cold frequently, and was wondering if cocounut oil would help me maintain body temperture more easily. Also, I have notice that SOME claim that coconut oil has many health benefits not affiliated with polyunsaturates.A. i know there was a Polynesian research about people that consume coconut oil on a daily basis in parallel to people who don't. they found out that there are high cholesterol levels among the people that consumed coconut oil but no significant difference in heart problems.

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