Natural Phospholipids & Lecithins
Key lipid excipients valued for emulsification, bioavailability and advanced drug delivery across pharmaceutical and nutraceutical systems
Lecithin is a complex natural mixture of phospholipids and other lipid components like triglycerides, glycolipids & fatty acids. They typically contain minimum of 50% polar lipids, which are the active ingredients of lecithin & impart to it properties making them ideal for various healthcare applications.
Phospholipids are lipids containing phosphorus, a polar head and nonpolar tails. They are essential lipids of biological membranes. They have an amphiphilic character & a unique property of self assembly. The most prominent phospholipid is Phosphatidylcholine (PC).
The most common sources of natural Phospholipids & Lecithins are soybean, sunflower, egg & milk (dairy). Phospholipids play functional roles in various health segments. Based on their properties, phospholipids are used as emulsifiers, wetting agents, solubilizers, liposomal & lipid nanoparticle agents.
Understanding Phospholipids
- Cells are surrounded by a bilayer of polar lipids called Phospholipids
- They are most essential lipids of all biological membranes
- Classified by US FDA as Generally Regarded as Safe (GRAS), natural (non chemical) origin
- Diverse applications
Biochemical Significance
- Play an important role for signal transduction cascades in nerve cells
- High propensity as drug carriers and excellent biocompatibility
- Used for therapeutic agents who have poor bioavailability, rapid clearance and toxic effects
- Phospholipid based drug delivery systems have proved to be more efficient and provide appropriate systemic effect
- They act as surface-active wetting agents in pleura and alveoli of lung, pericardium, joints etc.
Aid in Formulation Development
- Emerging platform for drug delivery due to their amphiphilic character
- Facilitate the absorption of drugs
- Improves the bioavailability of drugs
- For drugs with poor solubility and permeability (BCS class III, IV)
- Improves the physical characteristics resulting into more convenient and effective functionalized product for the consumer
- Reduces toxic effects of drugs
Physiological Properties
- They assemble the circulating lipoproteins, which mainly transport lipophilic triglycerides and cholesterols through blood
- Together with cholesterols and bile acids form mixed micelles to enhance absorption of fat soluble substances in gallbladder
Toxic Effects
- Classified by US FDA as Generally Regarded as Safe (GRAS) at all concentrations
- Natural (non chemical) origin
- Non Genetically Modified (non-GMO) and non-allergen grades available
- Phospholipid based drug delivery systems have proved to be more efficient and provide appropriate systemic effect
Routes of Administration
- Oral
- Pulmonary
- Ophthalmic
- Topical
- Rectal
- Parenteral
