Pure lecithin powder, also known as soybean lecithin, is a by-product of refining soybean oil, which is obtained by solvent extraction, centrifugation and alcohol washing. Granular soybean lecithin on the market is the product of phospholipid precipitated from soybean oil during degumming, and then processed and dried. Pure soybean lecithin is a brownish yellow waxy solid, easy to absorb water and turn into brownish black colloidal substance, easy to oxidize, and gradually changes from brownish yellow to brownish black; Soybean lecithin contains lecithin, cephalin, etc., which can delay aging and prevent cardiovascular and cerebrovascular diseases. Soybean lecithin can enhance the ability of cell information transmission, thereby improving brain vitality, and enhancing the self repair ability of cell membrane to protect the liver.
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Chemical Formula |
C42H80NO8P |
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Exact Mass |
129 |
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Molecular Weight |
129 |
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m/z |
758 (100.0%), 759 (45.4%), 760 (10.1%), 760 (1.6%) |
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Elemental Analysis |
C, 66.55; H, 10.64; N, 1.85; O, 16.88; P, 4.09 |
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Soybean lecithin is the essence extracted from soybean. It is also one of the lipid components needed by the human body. It is mainly used in industry as emulsifier, humectant, thickener, etc. At the same time, it has the role of nutritional supplements. The most important thing is that there are other physiological regulating functions. And the main effect depends on phosphatidylcholine, that is to say, the core of this part is the real lecithin part.
1. Retard senility
There are 60 trillion cells that make up the human body. One second will kill 500000 people and regenerate 500000 people. With the growth of age, the number of cell death will be more and more, while the number of regenerated cells will be less and less. When the number of cell death is greater than the number of regeneration, people begin to age. The metabolic process of cells is regulated by the cell membrane. The health of the cell membrane is directly related to the self repair ability, information transmission ability, ability to resist external damage, cell activity and regeneration ability of cells. The cell membrane is mainly composed of lecithin. Supplying lecithin to the human body means that it can repair the damaged cell membrane, improve the function of the cell membrane, soften and rejuvenate the cell membrane, and increase the cell activity. Through the ingestion of lecithin, it can improve the human body's metabolic capacity, self-healing capacity and the regenerative capacity of antibody tissue, enhance the vitality of the human body, and fundamentally delay human aging.
2. Vascular scavenger, prevention of cardiovascular and cerebrovascular diseases
Lecithin can emulsify and decompose oil, and can emulsify cholesterol and fat attached to blood vessel wall into particles, which can be dissolved in blood and transported back to liver for metabolism. It can soften blood vessels, improve serum lipids, and eliminate peroxides, reduce cholesterol and fat content in the blood, thereby reducing blood viscosity, improving blood circulation, and reducing the retention time of fat in blood vessels. Furthermore, the nutrient rich and oxygen rich blood can flow smoothly to the brain, heart and other organs. The Department of Food Nutrition of the Medical College of Keio University in Japan has conducted clinical experiments and concluded that, by taking lecithin, it can effectively reduce excessive blood lipids and cholesterol, thus preventing and treating coronary heart disease, hypertension, myocardial infarction, cerebral thrombosis, cerebral haemorrhage, arteriosclerosis and other diseases.
Lecithin can provide sufficient nutrients for brain nerve cells, accelerate information transmission between brain nerves, thus improving brain vitality, eliminating brain fatigue, making brain think quickly, and improving learning and working efficiency. Lecithin can maintain the normal function of brain nerve cells, enhance the function of brain nervous system, and achieve the effect of preventing Alzheimer's disease while repairing damaged brain cells and opening up the obstacles between brain and blood circulation.
Nutrition for diabetics
Lecithin can enhance pancreatic function, repair pancreatic cells, make them secrete sufficient insulin, reduce blood sugar, and effectively transport glucose in the blood to cells, thus alleviating the condition of diabetes.
4. Protector of liver
Heavy drinking or excessive nutrition will increase the burden of liver cells and reduce the ability of liver to synthesize phospholipids. When phosphatidylcholine is insufficient in the human body, it will lead to a large amount of fat accumulation in the liver, forming fatty liver, which will destroy the liver cells, reduce the liver function, and cause cirrhosis and even liver cancer. It is scientifically proved that lecithin supplementation can enhance material metabolism of liver cells, promote fat degradation, protect the liver, and prevent fatty liver and other diseases.
It is an indispensable basic material for the human body
Lecithin can promote spiritual transmission, improve brain vitality, and because of its good emulsification, it can effectively prevent cholesterol from settling in the blood vessel wall and remove some of the sediment, thus playing a role in lowering serum cholesterol, reducing blood viscosity, promoting blood circulation, and preventing cardiovascular diseases. Therefore, regular consumption of products containing soybean lecithin can effectively regulate blood lipid and cholesterol, improve brain function, improve memory, and prevent various diseases.
Lecithin is commonly found in egg yolk, animal brain, soybean, corn, cottonseed and other resources. In practical applications, it is mainly extracted from soybean and egg yolk. Extraction of high purity lecithin has always been an important topic in phospholipid research. The oil residue of soybean processing soybean oil contains 40%~50% phospholipid, and the content of lecithin in soybean lecithin is about 16%~20%. The extraction and separation methods of soybean lecithin mainly include:
The traditional production of lecithin uses organic solvent for extraction. Its principle is to separate the components of mixed phospholipids according to the difference in solubility in solvent. The solvents used are generally C1~C4 low-carbon alcohol, n-hexane, petroleum ether, ether, ethyl acetate, etc. The key of solvent extraction method is to find a good solvent or solvent system, and the temperature, amount of solvent and solvent concentration must be controlled during extraction. Organic solvent can be divided into single solvent extraction method and mixed solvent extraction method.
This method is to extract lecithin from phospholipids by using the property that lecithin can precipitate with some inorganic salts, so as to separate it from other phospholipids and remove protein and fat. After comparing several inorganic salts, such as CdCl2, MgCl2, CaCl2, ZnCl2, used to extract soybean lecithin, it is considered that ZnCl2 is an ideal precipitator.
Chromatographic separation is an efficient separation technology, which was mostly used in laboratories in the past, but has been gradually scaled up and applied to industry in the past 20 years. Thin layer chromatography, column chromatography and high performance liquid chromatography are commonly used in the extraction of soybean lecithin.
Soybean lecithin was purified by centrifugal thin layer chromatography (CTLC) and identified by high performance liquid chromatography (HPLC) and thin layer chromatography (TLC). The results showed that 716mg pure SPC could be obtained with 1000mg injection volume. The CTLC method is simple and the preparation amount is large. The neutral impurities and other phospholipids are removed from the product, and the SPC purity is 99.99%.
Column chromatography uses the adsorbent as the stationary phase. When the solutes in the mobile phase pass through the stationary phase, their adsorption and desorption capacities are different, so as to achieve the purpose of separation. Li Wei et al. [8] used silica gel as adsorbent and mixed solution of methanol and chloroform with gradient difference of (1 ∶ 2)~(2 ∶ 1) to perform concave gradient elution, which can elute lecithin. The amount of eluant is only 5~6 times of the column volume, and the elution time is only 6h.
Supercritical fluid extraction (SFE) is a new technology developed rapidly in recent years. The commonly used CO2 supercritical fluid can fully retain the nutritional and functional characteristics of the product. Through orthogonal experiment, the optimum technological conditions for preparing lecithin from Polygonum multiflorum Thunb. by supercritical CO2 extraction were studied. The optimum process conditions were selected as follows: extraction pressure 32MPa, extraction temperature 50 ℃, reactor pressure 6MPa, reactor temperature 55 ℃.
This method is to separate the lecithin from the mixture according to the molecular weight of different components in the lecithin and their difficulty in passing through the semi permeable membrane. If the phospholipid solution dissolved in the mixture of ethane and isopropanol passes through the polypropylene semi permeable membrane, the concentration of lecithin can be increased from 25% to 51%.
FAQ
What is lecithin used for?
Lecithin is used to treat dementia and Alzheimer disease. It's also used to treat gallbladder disease. It may also help treat fatty liver (hepatic steatosis) in people on long-term parenteral nutrition. But the role of lecithin is not well defined and confirmed.
Is lecithin a phospholipid?
Lecithin or phosphatidylcholine is a type of fat called phospholipid, it consists of saturated and unsaturated fatty acids, phosphoric acid, and choline (Juneja, 1996). Lecithin is produced not only by plants and animals but also by the human body as a constituents of the bile juice (Singh et al., 2009).
Is lecithin an emulsifier?
Lecithin is often used as an emulsifier in foods, which helps improve the texture and quality of products. It can also be used as an antioxidant and flavor protector. De-oiled lecithin is free of oil, which provides more concentrated phospholipids for enhanced dispersion in water and easier handling.
Is lecithin safe for kidneys?
Kidney disease: Lecithin products may contain phosphorus. Phosphorus-containing foods may pose a risk for people with chronic kidney disease (CKD). 28 People with CKD may need to avoid lecithin.
Who cannot take lecithin?
Egg or soy allergy: Lecithin might cause allergic reactions in people with egg or soy allergies.
Does lecithin reduce belly fat?
Lecithin might break down fat into smaller molecules, which are then converted into fatty acids that the body can easily burn as energy. While this theory has garnered interest, it has not been fully tested or proven. Lecithin may support rapid lipid metabolism and fat breakdown in humans.
What happens if I take lecithin every day?
Lecithin offers potential health benefits, including cognitive enhancement through its choline content [8–10], liver protection from toxins [9, 11, 12] and potential cardiovascular improvements by lowering cholesterol levels [13–16].
Is avocado a phospholipid?
Avocado lipid fraction is rich in phospholipids; however these compounds are frequently discarded with the residual pulp during industrial oil extraction processes.
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