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Lecithin is a lipid formed by the condensation of glycerol, fatty acids (two molecules), phosphoric acid and choline, and the fatty acid chain in the molecule has two types: saturated and unsaturated, and is a non-polar hydrophobic tail; Choline phosphate is a dipole ion, which is a polar hydrophilic head and is known as the "third nutrient" after protein and vitamins. It is the material basis of life, is the basic raw material of various membrane structures of cells, exists in each cell, more concentrated in the liver, brain, heart, kidney and immune system, the human body is synthesized by the liver, food is mainly found in soybeans, egg yolk.
The biggest use of lecithin is as a food additive, followed by a feed additive. Lecithin is an important substance for anti-aging, interacting with proteins to form lipoproteins, which can not only improve food quality, but also have a health care effect of improving cardiovascular and cerebrovascular and nervous system function.
Items | Specifications | Results |
Appearance | Yellow to brown paste, odorlessness | brown paste |
acetone insolubility | ≥60% | 97% |
N-hexane insoluble matter | ≤0.3% | 0.07% |
Loss on Drying | ≤2.0% | 0.34% |
acid value | ≤36.0(mg/g) | 2.5 |
peroxide value | ≤5.0(mmol/kg) | 0 |
plumbum | ≤2.0(mg/kg) | Conform |
total arsenic | ≤3.0(mg/kg) | Conform |
Ethanol residue | ≤0.005% | 0.004% |
Residual acetone | ≤0.005% | 0.0003% |
residual solvent | ≤0.005% | 0.004% |
Phospholipid(HPLC) | ≥45.0% | 73.4% |
total plate count | ≤1000CFU/g | ＜10CFU/g |
Total number of molds and yeasts | ≤100CFU/g | ＜10CFU/g |
E.Coli | not detected | not detected |
Salmonella | not detected | not detected |
Conclusion | The results of this product comply with the regulations. | |
| Product parameters | |
| Cas number: | 8002-43-5 |
| Appearance: | Light yellow powder/brownish-yellow liquid |
| Purity: | Acetone insolubles:97.0 w/% min |
| Package details: | 20kg/carton,50kg/drum,200kg/drum |
| Brand: | Fortunachem |
Lecithin is a fatty substance that is essential in the cells of all living organisms. It's a powerful emulsifier, meaning it helps mix oil and water, which would otherwise separate. For this reason, it's widely used in the food industry, pharmaceuticals, and as a dietary supplement. It is naturally found in many whole foods, with egg yolks and soybeans being particularly rich sources.
Lecithin is not a single molecule but a complex mixture of phospholipids. The most common phospholipids in lecithin are:
Phosphatidylcholine
Phosphatidylethanolamine
Phosphatidylinositol
Key Structural Feature: Each phospholipid has a unique structure:
A "head" that is hydrophilic (water-loving).
Two "tails" that are hydrophobic (water-fearing, fat-loving).
This structure is the fundamental reason for lecithin's emulsifying properties. The phospholipids position themselves at the interface between oil and water, with their heads in the water and their tails in the oil, creating a stable mixture.
Lecithin is ubiquitous, but its commercial production comes from a few primary sources:
Soybeans: The most common source. Soy lecithin is a byproduct of the refining process of soybean oil. You will see it listed as an ingredient in countless processed foods.
Egg Yolks: Egg yolk is the original source from which lecithin was isolated. It remains a key source, especially in applications like mayonnaise and certain pharmaceuticals.
Sunflower Seeds: Sunflower lecithin is a popular alternative, especially for those with soy allergies or who prefer non-GMO sources. Its extraction process is often gentler, using cold pressing rather than chemical solvents.
Other Sources: It can also be found in smaller amounts in foods like meat, seafood, nuts, and seeds.
Lecithin's applications are vast due to its emulsifying, stabilizing, and nutritional properties.
A) In the Food Industry:
Emulsifier: Prevents ingredients from separating in products like mayonnaise, margarine, chocolate, salad dressings, and ice cream.
Stabilizer & Thickener: Improves the texture and consistency of foods.
Release Agent: Prevents food from sticking to pans and baking molds (e.g., in non-stick cooking sprays).
Shelf-Life Extender: Helps maintain food quality for a longer period.
B) As a Dietary Supplement:
Lecithin is a primary source of Choline, an essential nutrient vital for:
Brain Health: Choline is a precursor to acetylcholine, a neurotransmitter crucial for memory, mood, and muscle control.
Liver Health: It helps prevent the buildup of fat in the liver.
Cholesterol Management: Some studies suggest it can help improve cholesterol levels, though evidence is mixed.
People often take lecithin supplements for cognitive support or liver health. It is also popularly used by some to improve milk flow while breastfeeding.
C) In Cosmetics and Pharmaceuticals:
Used as an emulsifier in lotions, creams, and lip balms to blend oil and water components.
In pharmaceuticals, it is used as a wetting agent, emulsifier, and to help in the delivery of active ingredients.
| Feature | Description |
|---|---|
| What it is | A mixture of phospholipids, a type of fat essential to cells. |
| Key Property | A powerful, natural emulsifier. |
| Primary Sources | Soybeans, egg yolks, sunflower seeds. |
| Main Uses | Food additive (E322), dietary supplement (for choline), and ingredient in cosmetics and drugs. |
| Health Role | Provides choline, which is critical for brain function, liver health, and nerve communication. |
In essence, lecithin is a versatile and crucial substance, acting as a bridge between oil and water in both industrial products and the human body.
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