Phosphatidylcholine soy lecithin is extracted from the oil foot of soybean oil production. Its content in soybeans is 1.0% to 2.8%, and the content of phospholipids in leached gross oil is 2.0 to 3.5%. It is an ester composed of glycerol, fatty acids, choline or cholamine. It is soluble in fats and non-polar solvents. The composition of soybean phospholipids is complex, mainly containing lecithin (about 34.2%), ceruloplasmin (about 19.7%), inositol phospholipids (about 16.0%), phosphatidylserine (about 15.8 %), phosphatidic acid (about 3.6%) and other phospholipids (about 10.7%). The 3 most important phospholipids are:
(1) Lecithin, which is composed of glycerol, fatty acids, phosphoric acid and choline;
(2) Cerebral lecithin, which is structurally similar to lecithin. The amino alcohol it contains is ethanolamine rather than choline.
(3) Inositol phospholipids, which are composed of glycerol, fatty acids, phosphoric acid, and inositol.
Products containing soy lecithin play a very important role in fat metabolism, muscle growth, nervous system development and antioxidant damage in the body. In recent years, soy based lecithin as feed additives to replace some of the fat has been initially applied to the feed industry.
Pure soy lecithin is a white solid substance at high temperature. It becomes light yellow or brown due to refining treatment and air contact. Soybean phospholipids are soluble in oils, fatty acids and organic solvents such as benzene and ether. It is partially soluble in ethanol, but it is extremely insoluble in acetone and methyl acetate, and insoluble in water. Phospholipids have the nature of hydrocolloid and can absorb water and swell when they meet water. Therefore, its solubility in oil and grease is greatly reduced, and it is precipitated from the leached oil. In the phospholipid molecule, there are phosphate and amino alcohol hydrophilic groups and hydrocarbon bond hydrophobic groups. Therefore, phospholipids can play the role of surfactants, water, oil, two immiscible phases to form a stable emulsion. This is because phospholipids form an interfacial layer between the two phases of water and oil and reduce the surface tension between oil and water. It becomes a good emulsifier and dispersant.Phosphatidylcholine soy lecithin are not stable in the air or sunlight, easy to oxidize and rancidity and turn black. However, it is more stable in oils and fats. Phospholipids have good heat resistance. But it will be decomposed gradually when the temperature exceeds 150℃. Phosphatidylcholine soy are easily hydrolyzed under acid and alkali conditions. The products are fatty acids, glycerol, phosphoric acid, amino alcohol and inositol.
According to the different processing techniques of soybean phospholipids, they can be divided into the following types:
(1) Natural crude phospholipids
It is produced by vacuum dehydration of the by-products of soybean oil refining (oil foot). Also known as concentrated soybean phospholipids. The acetone insoluble matter (phospholipids and glycolipids) content of the product is 60% to 65%. Soybean oil content of 36% to 40%. At present, most of the domestic soybean leaching oil plant in the gross oil degumming, through the phospholipid dryer on the gum dehydration to get concentrated non soy phosphatidylcholine.
(2) Modified soybean lecithin
It is made from concentrated soybean phospholipids by chemical modification. It has better hydrophilicity and oil-in-water (O/W) emulsification function. There are three main modification methods: physical method, chemical method and enzyme method. Its acetone insoluble content is the same as that of natural crude phospholipids. However, its emulsification and hydrophilicity properties are significantly improved compared with concentrated soy lecithin. Therefore, it has greater advantages in feed addition performance, liquid feed preparation and energy digestion and absorption, and is widely used in feed.
(3) Phospholipid oil
Vegetable oil and fatty acid diluted phospholipid products, low viscosity, soy lecithin contain soy is easy to pump or spray. Soya lecithin liquid content is generally 30% to 52%
(4) Powdered soybean phospholipids
It is concentrated soybean phospholipids by acetone oil removal of high-purity phospholipid products. Also known as de-oiled phospholipid powder. The color is beige or light brown-yellow, powder granular, acetone insoluble content of 95% to 98%.
(5) Refined soybean phospholipids
The powder soy lecithin phospholipids made by acetone precipitation can be purified by ethanol oil extraction. After ethanol treatment is divided into alcohol-soluble part and alcohol-insoluble part. Alcohol-soluble part of phospholipid cool choline content is high, which enhances its hydrophilicity and is an O/W type emulsifier. The alcohol-insoluble part is divided into ethanolamine phosphatidic acid and phosphatidylinositol, which are W/O emulsifiers. (6) Powdered soy lecithin
Powdered soy lecithin is a solid powder product formed by adding carrier to liquid phospholipids. Phospholipid content of 10% to 50%.
(7) Bleached soy lecithin
Crude phospholipids are bleached with hydrogen peroxide and further dehydrated, with water content less than 1%.
When To Use Soy Lecithin?
Phosphatidylcholine soy lecithin is a flexible fixing utilized in different food and non-food applications. Its essential job is as an emulsifier, and that implies it assists with mixing and balance out combinations that would somehow separate, like oil and water. This flexible fixing can be tracked down in a large number of items, including chocolate, heated merchandise, margarine, soups, sauces, salad dressings, and that's only the tip of the iceberg. Notwithstanding its emulsifying properties, soy lecithin likewise goes about as a settling and scattering specialist in food items. It can upgrade surface, further develop timeframe of realistic usability, and add to the perfection and consistency of numerous food things.
In baking, lecithin of soya origin is frequently used to work on the surface and timeframe of realistic usability of items like bread, cakes, and cakes. Its emulsifying properties help to make a more durable batter and a better piece structure in the last heated merchandise. In chocolate and candy parlor items, soy lecithin is normally used to guarantee legitimate mixing of cocoa and fats, as well as to forestall the arrangement of cocoa spread blossoming, which brings about ugly staining and surface changes in the chocolate.
With regards to business food creation, soy lecithin assumes a pivotal part in the making of smooth and rich emulsions in items like margarine, mayonnaise, and salad dressings. It likewise keeps up with the security and consistency of these items, keeping oil and water from isolating over the long run.
In the drug and corrective enterprises, soy lecithin is utilized as an emulsifier and balancing out specialist in creams, salves, and treatments. Its capacity to work on the surface and consistency of these items makes it a significant fixing in the definition of different skincare and individual consideration things.
Besides, soy lecithin has modern applications, like in the development of printing inks, where it fills in as a distributing specialist to guarantee the even conveyance of shades. Moreover, it is utilized in the assembling of plastics and as a handling help in the development of creature feed.
It's vital to take note of that soy lecithin isn't just utilized for its practical properties yet in addition for its healthful advantages. It contains choline, a supplement that is significant for liver capability, mental health, and nerve capability. Choline is likewise a forerunner to the synapse acetylcholine, which is engaged with muscle control, memory, and numerous different capabilities.
Phosphatidylcholine soy lecithin is utilized in a large number of food, drug, restorative, and modern applications because of its emulsifying, balancing out, and nourishing properties. Its capacity to further develop surface, broaden time span of usability, and guarantee item consistency makes it a significant fixing in many items across different businesses.
Our products include soy lecithin powder and soy lecithin liquid. Different specifications that you can choose.If you are interested in our information, welcome to enquiry us: info@gybiotech.com.
