Overview
Oleuropein is a naturally occurring phenolic compound primarily found in olive leaves and olive oil. It is renowned for its potent antioxidant properties and has been extensively studied for its health benefits. The compound is a key contributor to the bitter taste of unprocessed olives and is often extracted for use in various industries. Oleuropein is a glycoside, meaning it consists of a sugar molecule bound to a non-sugar moiety. This structure is responsible for its solubility in water and polar solvents, making it versatile for formulation in different products. Its discovery dates back to the early 20th century, and it has since become a subject of interest in nutraceutical and pharmaceutical research.
Physical and Chemical Properties
Oleuropein is a white to off-white crystalline powder with a molecular weight of 540.52 g/mol. It is soluble in water, ethanol, and methanol, which facilitates its extraction and purification processes. The compound has a melting point of approximately 85-90°C, though it may decompose at higher temperatures. Its chemical structure includes a hydroxytyrosol moiety and a glucose molecule, which contribute to its antioxidant activity. Oleuropein is stable under normal storage conditions but should be protected from prolonged exposure to light and moisture to prevent degradation. Its stability in various pH ranges makes it suitable for inclusion in a wide array of formulations.
Main Applications
Oleuropein is widely used in the food industry as a natural preservative and flavor enhancer, thanks to its antioxidant and antimicrobial properties. It is also a popular ingredient in dietary supplements aimed at promoting cardiovascular health and reducing inflammation. In the pharmaceutical sector, oleuropein is investigated for its potential to combat metabolic disorders, including diabetes and obesity. Additionally, its anti-inflammatory effects make it a candidate for topical applications in cosmetics and skincare products, where it helps protect the skin from oxidative stress and aging.
Safety and Storage
Oleuropein is generally recognized as safe (GRAS) for consumption and topical use. However, precautions should be taken to avoid inhalation of the powder or direct contact with eyes, as it may cause irritation. Proper personal protective equipment (PPE), such as gloves and masks, is recommended when handling the compound in bulk. For storage, oleuropein should be kept in a cool, dry place, ideally at temperatures below 25°C. It should be stored in airtight containers away from light to maintain its stability and efficacy over time. Proper labeling and segregation from incompatible substances are also essential to ensure safety in industrial settings.
B2B Procurement Guide
When procuring oleuropein, B2B buyers should prioritize suppliers who provide certificates of analysis (CoA) to verify purity and quality. The reference price ranges from approximately $100 to $500 per kilogram, depending on the purity level and quantity purchased. Bulk purchases often come with discounts, so it is advisable to negotiate terms with suppliers for large orders. Additionally, buyers should consider the supplier's reputation, delivery timelines, and compliance with regulatory standards such as ISO or GMP. Sampling before large-scale procurement is recommended to ensure the product meets specific requirements.
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