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Chemically speaking, oil is fat.
The chemical formula is the same, and the cho is composed of three elements.
Be saturated or unsaturated glycerides.
...... in high school chemistry 8 years ago
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Lard is mainly composed of saturated higher fatty acid glycerides and unsaturated higher fatty acid glycerides, among which the content of saturated higher fatty acid glycerides is higher.
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Zhu has a part of fat. Part of it isn't?
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No, the properties and characteristics of oil and fat are different, generally the leaky car is called liquid at room temperature is called oil, and the solid at room temperature is called fat. The chemical elements contained in fats are mainly C, H, and O. Fats are soluble in most organic solvents, but not in water.
The difference between oil and fat is that the molecular length of the compounds that make up the oil and the connections between the molecules are comparatively smaller.
Precautions for eating oil:
1. Don't overdo it with vegetable oil when eating oil. This is because vegetable oil is an unsaturated fat, and if you eat too much at this time, it is easy to slowly form peroxide fat in the human body. So don't overdo it with vegetable oil when eating oil. Eat about 10 grams a day.
2. Don't eat too much olive oil when eating oil. This is because olive oil begins to swell when it encounters heat, so when stir-frying. If you use it slightly less than other oils, don't use too much.
3. Don't overheat the oil when eating oil. This is because excessive heating of oil consumption will cause the umami of stir-fried vegetables to be completely lost, and the nutrients will also be seriously lost. Therefore, when eating oil, do not overheat the oil.
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Question 1: What is the difference between oil and fat, and is fat a fat? Oils and fats, as the name suggests, include oils and greases.
Oils and fats are actually glycerides of higher fatty acids, while oils refer to oils and fats in liquid state, such as soybean oil; Fat is a solid grease at room temperature, such as lard. Lipids, a kind of organic matter including fat, camellia, wax, steroids and triglycerides, cannot be dissolved in water, but can be soluble in ordinary organic solvents, feel greasy, and carbohydrates and proteins constitute the main structural components of life cells. Fats attack oily substances in humans and animals and plants, and are glycerides of one or more fatty acids C3H5 (OOCR)3.
Fats are oils and fats.
Question 2: Is the oil an ester Oils and fats are esters of glycerol and higher fatty acids. Of course, it belongs to the ester category, if there are many unsaturated components in the higher fatty acids, the melting point is low, and it is called oil, and the saturated higher fatty acids have many components and a high melting point, which is called fat, and oil is a general term for fat and oil.
Question 3: Fats Are fats the same as lipids? If not, what's the difference?
Oils and fats are esters formed by higher fatty acids and alcohols (as long as they are glycerol), and oils are divided into liquid oils (soybean oil, peanut oil) and solid fats (such as lard, butter); Oils are plant-based fats and fats are animal-based. Lipids are a big concept, a class of bioorganic molecules that are low in water and high in non-polar solvents. The range of lipids includes fats and fats, which in turn contain fats and oils; Lipids are divided into simple lipids (esters formed by fatty acids and alcohols, i.e. oils and waxes), complex lipids (phospholipids, glycolipids) and derived lipids (substituted hydrocarbons, sterols, terpenes, etc.).
Question 4: Is there fat in plants? Fats are solid, and what we usually call oils and fats in plants are called oils The glycerides of higher fatty acids that are liquid at room temperature are called oils, and the ones that are solid are called fats, and they are collectively called oils The more unsaturated bonds contained in the hydrocarbon base of the oil molecule, the lower the melting point The density of oils and fats is smaller than that of water and it is insoluble in water, so the answer is:
Oil; Fat; Low; Small; Nope
Question 5: Oils and fats are both esters Right, oils and fats are widely distributed, and there is a certain amount of oil in the seeds of various plants and the organs of animals.
And the oil in the plant body is called vegetable oil.
It contains more unsaturated carbon-carbon double bonds, which makes it appear liquid.
The fats in animals, which we call fats, have almost no double bonds, so they are solid.
I think you're right, because vegetable oils and fats are collectively called fats.
And the dip and fat all contain ester groups, which are functional groups that belong to the ester group.
Therefore, fats and fats are also called higher fatty acid glycerides.
Got it?
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1. Different properties: lipids are a general term for oils, fats, and lipids. The oily substances in food are mainly oils and fats. Oil is a general term for hydrophobic substances that are liquid at room temperature, and are composed of one or more liquid hydrocarbons.
2. Different characteristics: fats are soluble in most organic solvents, but insoluble in water. Glyceridine C3H5 (OOCR)3 of one or more fatty acids. The oil is actually a special class of vegetable oils.
3. Different connections: The difference between oil and fat is that the molecular length of the compounds that make up the oil and the connection between the molecules are relatively small.
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