Industrial use:
1, used to make nitroglycerin, alkyd resin and epoxy resin.
2. In medicine, it is used to prepare various preparations, solvents, moisture absorbents, antifreeze and sweeteners, as well as ointment or suppository for external use.
3. Used in coating industry to prepare alkyd resin, polyester resin, glycidyl ether and epoxy resin.
4. Used in the textile and printing and dyeing industries to manufacture lubricants, moisture absorbents, fabric shrink-proof treatment agents, diffusers and penetrants.
5. Used as sweetener, hygroscopic agent and solvent for tobacco preparation in food industry.
6. Widely used in papermaking, cosmetics, tanning, photography, printing, metal processing, electrical materials, rubber and other industries.
7, and used as automobile and airplane fuel and oil field antifreeze.
8. Glycerol can be used as plasticizer in new ceramic industry.
Daily use:
Biorefined glycerol, one of the best food-grade glycerol, not only contains glycerol, but also contains reducing sugars such as esters and glucose, which belongs to polyol glycerol. In addition to the moisturizing function, it also has special effects such as high activity, oxidation resistance and alcoholization.
The complete oxidation of glycerol per gram can produce 4 kilocalories, which will not change the blood sugar and insulin levels after being absorbed by the human body. Glycerol is a commonly used sweetener and humectant in food processing industry, which is mostly found in sports food and milk substitutes. ?
Application in fruit juice, fruit vinegar and other beverages;
Different quality fruits contain different degrees of tannin, which is the source of bitterness and astringency in fruits.
Function: quickly decompose the bitter taste in fruit juice and fruit vinegar beverage, improve the thick taste and fragrance of fruit juice itself, and make the appearance bright, sweet and sour.
Addition amount: 0.8%~ 1%?
Application of fruit wine industry;
Wine brewed with fruits or other dried and fresh fruits is called fruit wine (dry red and dry white) only in different production methods. There is tannin in fruit wine, which is the source of bitterness and astringency.
Function: decompose tannins in fruit wine, improve the quality and taste of wine, and remove bitterness and astringency.
Addition: 1%
Application of Dried Meat, Sausage and Bacon Industry
Use of cured products, dried meat and sausages:
When processing, plant refined glycerin is diluted with pure grain wine with a temperature of more than 50 degrees, and then evenly sprayed on the meat or cut meat, and fully kneaded or stirred.
Function: lock water and moisturize, achieve weight gain effect and extend shelf life.
Addition amount: 1.2%~ 1.5%
Application of preserved fruit industry;
When preserved fruit is processed, the product is easy to lose water and dry due to storage problems, and the fruit also contains tannin.
Function: lock water, moisturize, inhibit the heterosexuality of tannin, achieve the effects of color protection, freshness preservation and weight gain, and extend the shelf life.
Addition: 0.8%~ 1%
Wild:
In the wild, glycerol can not only be used as an energy supply substance to meet the needs of human body. It can also be used as a kindling. The method is as follows: pile 5 ~ 10g potassium permanganate solid under combustible materials, then pour glycerol on potassium permanganate, and a flame will emerge in about half a minute. Because glycerol is viscous, it can be diluted with flammable organic solvents such as anhydrous alcohol in advance, but the solvent should not be too much.
Medicine:
Stabilize blood sugar and insulin:
A study was published in the European Journal of Applied Physiology. The researchers divided six healthy young men into three groups, injected them with glucose, glycerol and placebo respectively, and then asked them to do the same exercise on the fitness machine. People who take glucose (0.5g glucose per pound of body weight) 45 minutes before exercise have a 50% increase in blood sugar level and a 3-fold increase in blood insulin level at the beginning of exercise. People who took glycerol (0.5g glycerol per pound of body weight) 45 minutes before exercise increased their blood glycerol level by 340 times at the beginning of exercise, but their blood sugar and insulin levels did not change.
Energy acid:
Some scientists also emphasize that glycerol is also a good tonic if you want to perform better in the sports field. The reason is that when you have enough water in your body, your physical strength will be stronger and more lasting. Especially in high temperature environment, the strong water retention of glycerol just helps the body to store more water.
A study published in the International Journal of Sports Medicine shows that glycerol may contain an acidic substance that produces energy. The researchers compared glycerol with a nutritional sweetener called aspartame. The method is to let the subjects take glycerol and aspartame respectively, with the dosage of 0.2g glycerol (in the form of 20% aqueous solution) or 26ml aspartame per kg body weight/kloc-0. The results show that glycerol can not only reduce the heart rate of athletes, but also prolong the exercise time by 20% under sub-extreme exercise load.
Glycerol may bring better performance to people engaged in high-intensity physical training. For bodybuilders, glycerin may help them transfer water from the surface and subcutaneous of the body to the blood and muscles.
Plants:
According to new research, some plants have a layer of glycerol on their surfaces, which can make them live in saline-alkali land.
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Extended data:
Nature and stability:
Colorless, transparent, odorless, viscous liquid, sweet and hygroscopic. It is miscible with water, alcohol, amine and phenol in any proportion, and the aqueous solution is neutral. Soluble in 1 1 times of ethyl acetate and about 500 times of ether. Insoluble in benzene, chloroform, carbon tetrachloride, carbon disulfide, petroleum ether, oil and long-chain fatty alcohol. Flammable, can cause combustion and explosion when it meets strong oxidants such as chromium dioxide and potassium chlorate. It is also a good solvent for many inorganic salts and gases. It is non-corrosive to metals and can be oxidized to acrolein when used as a solvent.
Chemical properties: Esterification with acid, such as phthalic acid to form alkyd resin. Transesterification reaction with ester occurs. React with hydrogen chloride to generate chloroethanol. There are two ways to dehydrate glycerol: intermolecular dehydration to obtain diglycerol and polyglycerol; Intramolecular dehydration to obtain acrolein. Glycerol reacts with alkali to form alcoholates.
React with aldehydes and ketones to form acetals and ketals. Oxidizing with dilute nitric acid to generate glyceraldehyde and dihydroxyacetone; Oxidation with periodic acid produces formic acid and formaldehyde. Contact with strong oxidants such as chromic anhydride, potassium chlorate or potassium permanganate will lead to combustion or explosion. Glycerol can also play the role of nitration and acetylation.
2. Non-toxic. Even if the total amount of diluent is 100g, it is harmless and will become a nutrient source after hydrolysis in the body. In animal experiments, if drunk in large quantities, it has the same anesthetic effect as alcohol.
3. It exists in flue-cured tobacco, burley tobacco, oriental tobacco and flue gas.
It naturally exists in tobacco, beer, wine and cocoa.
References:
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